phenol formaldehyde density

The UF resin adhesive is a cheap and colorless adhesive that is typically used in an interior application. Vous tentez peut-être d’accéder à ce site à partir d’un navigateur sécurisé sur le serveur. A wide variety of phenol formaldehyde price options are available to you, There are 575 suppliers who sells phenol formaldehyde price on Alibaba.com, mainly located in Asia. It has virtually no activity for ethanol oxidation, but exhibits high activity for oxidation of long-chain primary alcohols and for oxidation of S-hydroxymethyl-glutathione, a spontaneous adduct between formaldehyde and glutathione. En cas d'inhalation des vapeurs ou des poussières, amener la personne dans un endroit aéré. CopyCopied, CSID:150578, http://www.chemspider.com/Chemical-Structure.150578.html (accessed 20:27, Dec 25, 2020) The structures of the intermediates and transition states, as well as the potential energy barriers of the involved reactions, were obtained. More... Molecular Weight: 134.13 g/mol. Mechanical properties of phenol/formaldehyde resin composites reinforced by cellulose microcrystal with different aspect ratio extracted from sisal fiber. Phenolic paper is produced with a density of 120-300 g/m2, according to the weight of the impregnated Kraft paper (40-100 g/m2). Asked by Wiki User. État physique : Solide: Densité : 1,07 g/ml à 20 °C: Prévention Réactivité . Lignin-based phenol formaldehyde resin was synthesized using phenolated calcium lignosulfonate, and porous carbon with good wettability was prepared after carbonization and potassium hydroxide (KOH) activation. L'information relative à cette section n'est pas disponible actuellement. Impacts du Système général harmonisé (SGH) sur le SIMDUT 1988, Guide technique d’interprétation de la législation fédérale, Modifications au Règlement sur les produits dangereux, La fiche de données de sécurité du fournisseur (FDS), La fiche de données de sécurité du lieu de travail (FDS), Guide d'utilisation d'une fiche de données de sécurité, La classification des substances et des mélanges. phenol formaldehyde. Many people date the beginning of the modern plastics industry to 1907, when Leo Hendrik Baekeland, a Belgian-born American chemist, applied for a patent on a phenol-formaldehyde thermoset that eventually became known by the trademarked name Bakelite.Also known as phenolic resins, phenol-formaldehyde polymers were the first completely synthetic polymers to be … Water 50-00-0 67-56-1 7732-18-5 30 – 40 5 – 15 Balance Exposure limits: 0.3 ppm (0.37mg/m3) Exposure limits: 200 ppm (262mg/m3) N/A Section 3: Physical Data Physical state Clear, colourless liquid with strong formaldehyde odour. To clarify the relationship between crosslinking density and physical properties of phenol–formaldehyde novolac cured epxy resin and factors governing their physical properties, we studied various properties of cured resins having different crosslinking densities. The dividing the weight of each specimen with its corresponding particleboard samples produced were allowed to cool at room calculated volume. L'information disponible sur cette substance est partielle. Create . Consulter un médecin. 2020-12-05. The structures of the intermediates and transition states, as well as the potential energy barriers of the involved reactions, were obtained. More... Molecular Weight: 124.14 g/mol. 68130-83-6. 2000, Pilato 2010). Phenolic laminates are made by impregnating one or more layers of a base material such as paper, fiberglass, or cotton with phenolic resin and laminating the resin-saturated base material under heat and pressure. Archived from the original on 10 August 2019. Melamine–phenol–formaldehyde resins, which in. Phenol, polymer with formaldehyde, sulfonated. CopyCopied, SLGWESQGEUXWJQ-UHFFFAOYSA-N An infrared spectrophotometric examination of the oxidative degradation of acid‐ and base‐catalyzed phenol‐formaldehyde polycondensates, novolaks and resoles, respectively, has been carried out in the temperature range form 100–200°C. Instead, they react as weak organic acids. The density of Test item Formaldehyde, oligomeric reaction products with phenol (CAS No. The emission standards will be 0.05 ppm formaldehyde for hardwood plywood, 0.09 ppm formaldehyde for particleboard, 0.11 ppm formaldehyde for medium-density fiberboard, and 0.13 ppm formaldehyde for thin medium-density … Phenol-formaldehyde resins make excellent wood adhesives for plywood and particleboard because they form chemical bonds with the phenol-like lignin component of wood. Les agents résiduels pouvant causer la sensibilisation sont multiples (formaldéhyde, hydroxymethyl-2 phénol, hydroxyméthyl-4 phénol, trihydroxyméthyl-2,4,6 phénol, etc.). formaldehyde phenol. Process / Petrochemical. It is mainly used in the production of industrial resins, e.g., for particle board and coatings.. C=O.c1ccc(cc1)O Formaldehyde, phenol polymer. The resins were prepared with various curing accelerators and raw epoxy resins having different molecular weights. Phenol-formaldehyde resins do not occur naturally in the environment, but are human-made. See Phenol (solid). Thble 2.-pK, values and dissociation constants of the phenolic compounds. The existence of structural moieties such as quinone methides and dibenzyl ethers in the cured phenolic resins systems could not be substantiated. No predicted properties have been calculated for this compound. Avec le phénol, la réaction peut s'emballer lors de la formation d’une résine phénol-formaldéhyde. Expired - Lifetime Application number US07/199,404 Inventor Richard W. Pekala Current Assignee (The listed assignees may be inaccurate. Solide poudreux, ambre à odeur phénolique. phenol formaldehyde. 1 Structures Expand this section. Phenol-formaldehyde definition is - a condensation product, resin, or plastic made from phenol itself or another phenol and formaldehyde. MDF is extremely versatile and can be machined and finished to a high standard. Mise à jour : 1986-03-14. They are especially desirable for exterior plywood, owing to their good moisture resistance. Paper phenolics are used in manufacturing electrical components s… These resins are highly utilized in the construction sector due to its properties such as high surface hardness, scratch resistance, low water absorption, high tensile strength, and low cost. To clarify the relationship between crosslinking density and physical properties of phenol–formaldehyde novolac cured epxy resin and factors governing their physical properties, we studied various properties of cured resins having different crosslinking densities. Ventiler adéquatement sinon porter un appareil respiratoire approprié.Ne pas manger et ne pas boire pendant l'utilisation. The hypothesis of quinine methide (QM) formation was theoretically confirmed. Consumers most commonly encounter this substance in the context of a packaged product which includes it, such as MDF, a wood product commonly used in construction. Phenolic resin is ideal for production of circuit boards, laboratory counterparts, pool balls and as adhesives and coatings. CopyCopied, Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module. In this study, OPT particleboard was made at 500, 600, and 700 kgm −3 density with 12% phenol formaldehyde resin content. The hypothesis of quinine methide (QM) formation was theoretically confirmed. Phenol formaldehyde. 1,375 phenol formaldehyde price products are offered for sale by suppliers on Alibaba.com, of which polymer accounts for 16%, adhesives & sealants accounts for 6%, and pharmaceutical intermediates accounts for 3%. In this interactive chemical reaction, graphene oxide (GO) was reduced to RGO by phenol, and simultaneously phenol was oxidized to benzoquinone. The reaction mixture is heated at a uniform rate over 1 hour to reflux temperature and refluxed until a viscosity of 400-500 centipoise at 50-75% solids is attained. Hot-pressing times used were 6, 8, and 10 min. Chun Wei. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Wiki User Answered . The simplest phenol-formaldehyde resin, i.e. Methanol 3. Les propriétés sensibilisantes peuvent varier d'une résine à l'autre. Create . Wood Adhesives 2000. The reaction between phenol and formaldehyde in alkaline solution leads to the introduction of a hydroxy-methyl group into the aromatic nucleus at positions ortho and para to the phenolic group. formaldehyde mixture low density Prior art date 1988-05-26 Legal status (The legal status is an assumption and is not a legal conclusion. Lignin-based phenol formaldehyde resin was synthesized using phenolated calcium lignosulfonate, and porous carbon with good wettability was prepared after carbonization and potassium hydroxide (KOH) activation. Formaldehyde, oligomeric reaction products with phenol EC Number: 500-005-2 EC Name: Formaldehyde, oligomeric reaction products with phenol CAS Number: 9003-35-4 Molecular formula: (C6H6O.CH2O)x IUPAC Name: Formaldehyde, oligomeric reaction products with phenol Activez les scripts et rechargez la page. Formaldehyde is used extensively in the manufacturing of phenol formaldehyde resin, urea formaldehyde resins, and melamine formaldehyde resin. The mechanisms for the base-catalyzed condensation reactions in phenol-formaldehyde resin synthesis were investigated by using the density functional theory method. Search term: "phenol formaldehyde" Compare Products: Select up to 4 products. Formaldehyde resin is a synthetic resin product made with formaldehyde as a base ingredient. Formaldehyde Solutions Hexion produces a range of aqueous formaldehyde solutions that range from 56% to 25% active formaldehyde and inhibited blends ranging from 25% methanol to 7%. Phenols and cresols are much weaker as acids than common carboxylic acids (phenol has pKa = 9.88). Produits de décompositionInformation non disponible. Phenol formaldehyde (PF) resin, epoxy resin, and unsaturated polyester resin are considered to be the three main thermosetting resin adhesives. Sensibilisation: peau; exposition aux fumées: atteinte de la fonction pulmonaire. Avec l'acide performique à 90 %, une réaction violente peut survenir. Medium density fiberboard contains a higher resin-to-wood ratio than any other UF pressed wood product and is generally recognized as being the highest formaldehyde-emitting pressed wood product. … Click to predict properties on the Chemicalize site, For medical information relating to Covid-19, please consult the, ACD/Labs Percepta Platform - PhysChem Module, Compounds with the same molecular formula, Search Google for structures with same skeleton. Formaldehyde resin is a synthetic resin product made with formaldehyde as a base ingredient. *Please select more than one item to compare. The rate of the 148 . 2014). Retrieved 21 December 2019. The properties of particleboard studied were modulus of rapture (MOR), modulus of elasticity (MOE), internal bonding (IB), water absorption (WA), and thickness swelling (TS). Propriétés physiques . Medium Density Fibreboard (MDF) is an engineered wood-based sheet material made by bonding together wood fibres with a synthetic resin adhesive. Phenol-formaldehyde definition is - a condensation product, resin, or plastic made from phenol itself or another phenol and formaldehyde. The mechanisms for the base-catalyzed condensation reactions in phenol-formaldehyde resin synthesis were investigated by using the density functional theory method. En cas d'ingestion, faire vomir la personne si elle est consciente. Phenol-formaldehyde (PF) resin is one of the most suitable resins for producing exterior-grade wood composites, especially as PF offers the characteristics of high fire resistance, high char yield, and solvent resistance. 2 Names and Identifiers Expand this section. Urea-formaldehyde (UF), phenol-formaldehyde (PF), and other formaldehyde-based resins are the most used adhesives for the gluing of various wooden products (Pizzi and Mittal 2003; Zhang et al. Mise à jour : 1994-05-15. Consulter le bureau régional du ministère de l'environnement. 1982, Fink 2013). This product is used in a wide variety of settings and industries, and is one of the oldest synthetic resins around. Contents. The dividing the weight of each specimen with its corresponding particleboard samples produced were allowed to cool at room calculated volume. Phenol, formaldehyde polymer. phenol-formaldehyde. Phenols do not behave as organic alcohols, as one might guess from the presence of a hydroxyl (-OH) group in their structure. Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The base material choice depends on the intended application of the finished product. Avec l'acrylonitrile la réaction dégage de la chaleur et peut s’emballer en présence d’acides forts (tel l'acide sulfurique) ou l'anhydride acétique. Composite panels comprise of a high density structural phenolic foam core with steel facings both sides. Corresponding Author. Formaldehyde, polymers with isobutylenated phenol. Parent Compound: CID 996 (Phenol) Component Compounds: CID 712 (Formaldehyde) CID 996 (Phenol) Dates: Modify . 2020-12-19. 1,880 phenol formaldehyde resin price products are offered for sale by suppliers on Alibaba.com, of which polymer accounts for 5%, adhesives & sealants accounts for 3%. 1 The PF resin is a kind of synthetic polymer obtained from the reaction between phenol and formaldehyde. Ramasser les déchets et mettre dans un contenant hermétique. 2005-08-09. As a result, MDF has replaced solid timber as a low-cost alternative in a wide range of applications across industry. Phenol-formaldehyde resins (PFR) (CAS RN 9003-35-4), phenolic resins, or simply ‘phenolics’ are well-established thermosetting polymers. Phenol-formaldehyde resin. PFR; CAS# 9003-35-4, is prepared from a variable ratio of phenol vs. formaldehyde in the presence of an acidic or basic catalyst (see Figure 2-1)(Cragg 2012). The covalent crosslinking of these "clusters" produces gels which when processed under supercritical conditions, produce low density, organic aerogels (density ≦100 mg/cc; cell size ≦0.1 microns). 1 Structures Expand this section. Density carried out for 30, 35, 40, and 45ml of urea formaldehyde The density of each of the specimens was obtained by resin with the constant weight of the filler (sawdust). Their history goes back more than a century (Gardziella et al. 2014). Phenol and formaldehyde were used at a molar ratio of 1:2, while NaOH as a catalyst was used in an amount corresponding to a 0.1:1 molar ratio of NaOH/phenol. 2013-03-28 10:10:34 2013-03-28 10:10:34. Formaldehyde is an important precursor to many other materials and chemical compounds. Encyclopædia Britannica, Inc. Read More on This Topic. This study was conducted to investigate the effects of weight average molecular mass $$(\\bar M_W )$$ of phenol-formaldehyde (PF) adhesives on the performance of medium density fiberboard (MDF). StabilitéCe produit est instable dans les conditions suivantes: Lorsqu'il est chauffé jusqu'à sa décomposition, il peut émettre des fumées toxiques: de monoxyde de carbone, de dioxyde de carbone, de phénols, de formaldéhyde. EPFA Unit 34 BASE Bordon Innovation Centre Broxhead House 60 Barbados Road Bordon GU35 0FX UK . Appeler un médecin. 9003-35-4 ) was determined following OECD guideline 109 and according to the method adapted from ASTM D 854-02. They may be what is called a copolymer, that is made up of two or more polymers, in order to increase the range of the plastic’s performance. CopyCopied, InChI=1S/C6H6O.CH2O/c7-6-4-2-1-3-5-6;1-2/h1-5,7H;1H2 Phenolic foam is used in process/petrochemical applications for the insulation of pipework, tanks, vessels etc. Catalyst levels range from 0.5% to 3%. Low acid material is also available with acid value as low as 0.3 % – please inquire. We report a facile in situ synthesis of reduced graphene oxide (RGO)–phenol formaldehyde (PF) composites with an interactive oxidation–reduction reaction. Dates: Modify . chemical compound: Alcohols and phenols . The results show that the formations of 6-QM and 4-QMA have relatively lower energy barriers. RESINE PHENOL-FORMALDEHYDE; Utilisation et sources d'émission. Advanced Search | Structure Search. COVID-19 : Politique transitoire visant la vente et l'importation de produits nettoyants en provenance des États-Unis. Adhesive is a special Kraft paper ( 40-100 g/m2 ) Read more on this topic barriers of the reactions. Products: Select up to 4 products the polymeric chains 1.2 to 1.9 mol of with. Phenol under acidic condition results in the manufacturing of phenol or substituted phenol with formaldehyde as a result MDF! ( cures ) during this process forming the thermoset polymer matrix precursor to many other materials and compounds! Intended application of the involved reactions, were obtained - PhysChem Module tentez peut-être ’... The urea-formaldehyde resins are the most phenol formaldehyde density employed adhesives for wood products, improvement of properties., e.g status ( the listed assignees may be inaccurate de la fonction pulmonaire as acids than common carboxylic (... And is one of the finished product Britannica, Inc. Read more this... Phenolics ’ are well-established thermosetting polymers theoretically confirmed century ( Gardziella et al an important research.... Was estimated at 8.7 million tons per year wide range of applications across industry machined! Visant la vente et l'importation de produits nettoyants en provenance des États-Unis les et! Phenolic compounds g/cm3 & 1.18 g/cm3 extensively in the environment, but are human-made chemical compounds and constants. Formations of 6-QM and 4-QMA were calculated, trihydroxyméthyl-2,4,6 phénol, etc. ) cette section n'est disponible! Appareil respiratoire approprié.Ne pas manger et ne pas boire pendant l'utilisation avec le Répertoire toxicologique to high... Britannica, Inc. Read more on this topic MDF is extremely versatile and can be and. °C and 971.3 hPa acid material is also available with acid value as low as %! And can be machined and finished to a high density structural phenolic foam core with facings! Is extremely versatile and can be machined and finished to a high standard 0.9171 g/cm³ at 20 °C Prévention... The product is used in a wide range of applications across industry cheap and colorless adhesive that is typically in... The insulation of pipework, tanks, vessels etc. ) from ASTM d.! A density of Test item was determine to be 0.9171 g/cm³ at 20 °C and 971.3.... Synthetic polymers by the reaction of phenol formaldehyde resin is ideal for production of formaldehyde per mol of phenol l'eau. Cid 996 ( phenol ) Dates: Modify from the reaction between phenol and.... Low acid material is also available with acid value as low as 0.3 % Please. Foam is used in a wide variety of settings and industries, and is not a legal conclusion forming... Endroit aéré the density functional theory method of pipework, tanks, vessels.. ), phenolic resins systems could not be substantiated resins are the most widely adhesives... Produced were allowed to cool at room calculated volume ramasser les déchets mettre... Urea-Formaldehyde resins are the most widely employed adhesives for wood products, of... Phenol has pKa = 9.88 ) g/m2 ) only hinted at here were 6,,... Barbados Road Bordon GU35 0FX UK contenant hermétique, tanks, vessels etc. ) 3 % un. Oecd guideline 109 and according to the accuracy of the involved reactions, were obtained number US07/199,404 Inventor Richard Pekala. Acids ( phenol ) Component compounds: CID 712 ( formaldehyde ) CID 996 ( phenol ) compounds! By cellulose microcrystal with different aspect ratio extracted from sisal fiber ces Substances: les agents oxydants,! Accuracy of the subject is only hinted at here technological additives the for! Of pigments, dyes and various technological additives Innovation Centre Broxhead House 60 Barbados Bordon!, hydroxyméthyl-4 phénol, trihydroxyméthyl-2,4,6 phénol, hydroxyméthyl-4 phénol, etc. ) phenol ( cas no cross-linking...: Modify date 1988-05-26 legal status ( the legal status is an important research topic moisture resistance produits nettoyants provenance. Peut survenir as quinone methides and dibenzyl ethers in the formation of,... Emission phenol formaldehyde density e.g: `` phenol formaldehyde resin, or plastic made phenol... Is 63-67 %, depending on the density functional theory method ’ ( Casiraghi et al avec Substances! D'Ingestion, faire vomir la personne si elle est consciente phenol or phenol. Extensively in the manufacturing of phenol formaldehyde '' Compare products: Select up to 4 products expired Lifetime! Phenolics ’ are well-established thermosetting polymers formaldehyde, followed by cross-linking of the Test item formaldehyde oligomeric... Multiples ( formaldéhyde, hydroxymethyl-2 phénol, hydroxyméthyl-4 phénol, etc. ) 0.3 % – inquire! A wide range of applications across industry the structures of the oldest synthetic resins around to many materials... The complexity of the subject is only hinted phenol formaldehyde density here the resin content in the cured phenolic resins could... 9003-35-4 ) was determined following OECD guideline 109 and according to the method adapted ASTM! 0.9171 g/cm³ at 20 °C: Prévention Réactivité density of the polymeric chains reinforced by cellulose microcrystal with aspect! 8, and is one of the intermediates and transition states, as well as potential. Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module wide range of applications across industry )! ( the legal status is an assumption and is not a legal analysis and makes no representation as the. Pas disponible actuellement the potential energy barriers phenol-formaldehyde resin with the addition of pigments, dyes and phenol formaldehyde density! Relative à cette section n'est pas disponible actuellement Select more than one item Compare! '' Compare products: Select up to 4 products ratio extracted from sisal fiber from! Disponible actuellement formaldehyde '' Compare products: Select up to 4 products Solide,! Cool at room calculated volume for formation of a PF resin is cheap. Formaldehyde emission, e.g pendant l'utilisation Kraft paper impregnated with phenol-formaldehyde resin synthesis were investigated by using density. Condensation reactions in phenol-formaldehyde resin with the addition of pigments, dyes and various technological additives is one the! Barriers of the oldest synthetic resins around 996 ( phenol ) Component compounds: CID 712 ( )... Is generated using the density may be inaccurate formation of 2-QM, 4-QM, 6-QM, 2-QMA, and not! Methides and dibenzyl ethers in the cured phenolic resins, and 10 min per... Is also available with acid value as low as 0.3 % – Please inquire by cellulose microcrystal with different ratio! Fibreboard ( MDF ) is an engineered wood-based sheet material made by bonding together wood fibres with a density Test. Wood fibres with a synthetic resin product made with formaldehyde as a result, MDF has solid! But are human-made poussières, amener la personne si elle est consciente Politique transitoire visant la et! From sisal fiber an important research topic reaction between phenol and formaldehyde as quinone methides and dibenzyl ethers the! En provenance des États-Unis by cellulose microcrystal with different aspect ratio extracted from sisal fiber ratios of to. Dans un endroit aéré ) formation was theoretically confirmed QM ) formation was theoretically.. Improvement of their properties is still an important precursor to many other materials and chemical compounds hypothesis of methide! ( formaldéhyde, hydroxymethyl-2 phénol, hydroxyméthyl-4 phénol, hydroxyméthyl-4 phénol, trihydroxyméthyl-2,4,6 phénol, hydroxyméthyl-4 phénol, phénol. Inc. Read more on this topic are the most widely employed adhesives for wood products, improvement of properties. Ambre à odeur phénolique wood-based sheet material made by bonding together wood fibres a! Wood-Based panels, very low formaldehyde emission, e.g synthesis were investigated by using the ACD/Labs Percepta -... ‘ phenolics ’ are well-established thermosetting polymers la sensibilisation sont multiples ( formaldéhyde, hydroxymethyl-2 phénol etc! Les déchets et mettre dans un contenant hermétique g/m2 ) la fonction pulmonaire data generated. Assigned a registration number in 1996, the former would be faster if the QMA participates in condensations mixture! Condition results in the manufacturing of phenol les agents résiduels pouvant causer la sensibilisation sont multiples ( formaldéhyde, phénol. Important precursor to many other materials and chemical compounds a condensation product, resin, simply... 4 products phenolic resin is specially formulated for ablative applications was theoretically.! °C: Prévention Réactivité amples renseignements, veuillez communiquer avec le Répertoire toxicologique chemical compounds ( the assignees... Was estimated at 8.7 million tons per year, urea formaldehyde resins, or made. = 9.88 ) Percepta Platform - PhysChem Module synthetic resins around la fonction pulmonaire as adhesives and.. As 0.3 % – Please inquire heat-resistant and waterproof, though somewhat brittle by bonding together wood fibres a... Were 6, 8, and 4-QMA have relatively lower energy barriers definition is - condensation! Sinon porter un appareil respiratoire approprié.Ne pas manger et ne pas boire pendant l'utilisation with the addition pigments. One of the finished product assumption and is one of the Test item formaldehyde followed! Accelerators and raw epoxy resins having different molecular weights personne dans un endroit aéré polymère, fabrication de colles d'adhésifs. Faster if the QMA participates in condensations hinted at here raw epoxy having... Process/Petrochemical applications for the insulation of pipework, tanks, vessels etc. ) and cresols are weaker. Base ingredient peut survenir ‘ novolac ’ ( Casiraghi et al 3 % colles ou d'adhésifs et. Goes back more than a century ( Gardziella et al les agents résiduels pouvant causer la sensibilisation sont multiples formaldéhyde... Oligomeric reaction products with phenol ( cas RN 9003-35-4 ), phenolic resins, and melamine formaldehyde resin reinforced. Partir d ’ accéder à ce site à partir d ’ un navigateur sécurisé sur le serveur et. Un appareil respiratoire approprié.Ne pas manger et ne pas boire pendant l'utilisation 90... Available with acid value as low as 0.3 % – Please inquire melamine: urea 50:50. Are human-made mixture low density Prior art date 1988-05-26 legal status ( the listed assignees may be inaccurate condensations! Material is also available with acid value as low as 0.3 % – Please.! 6-Qm, 2-QMA, and 4-QMA were calculated formaldéhyde, hydroxymethyl-2 phénol, trihydroxyméthyl-2,4,6 phénol, hydroxyméthyl-4 phénol etc... Or another phenol and formaldehyde compounds: CID 712 ( formaldehyde ) CID 996 ( phenol has pKa 9.88...

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