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4-hydroxybenzenesulfonic acid

Reagent

4-hydroxybenzenesulfonic acid 4-hydroxybenzenesulfonic acid introduction Molecular formula: C6H6O4S CAS 98-67-9 Molecular weight: 174.17 Other names: p-hydroxybenzenesulfonic acid,  phenol-4-sulfonic acid solution, PHENOL SULFONIC ACID, phenol-4-sulfonic acid   4-hydroxybenzenesulfonic acid Specifications Indicator name unit of measurement standard requirement Appearance Red-brown transparent liquid Go门tent % > 65 Odor special Free sulfuric acid (H2So4) % < 3.0 Free phenol (C6H6O)…

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sodium metabisulfite

Reagent

Sodium Metabisulfite Sodium Metabisulfite introduction Other names: sodium pyrosulfite CAS No.: 7681-57-4 Molecular Formula: Na2S2O5 Molecular Weight: 190.10 White or light yellow crystalline powder, relative density is 1.4. Soluble in water (when 20°C, 54g/100ml water; when 100°C,81.7g/100ml water), acidic aqueous solution. Soluble in glycerine, slightly soluble in ethanol. Moisture easily decomposed, exposed in the air…

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Antifouling Agent

Reagent

Antifouling Agent 1-Naphthol formaldehyde Antifouling Agent introduction Antifouling Agent is particularly suited for the protection of the internal walls of reactors used for the suspension polymerization of PVC. It is used as an agent for coating the wall. CAS number 25359-91-5 Physical form Liquid Chemical name:  Formaldehyde copolymer with 1-naphthol, solution in water,  1-Naphthol formaldehyde.  …

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Hydrogenated tallow amine

Reagent

Hydrogenated Tallow Amine Hydrogenated tallow amine introduction Distilled gasified tallow primary amine (distilled industrial octadecyl amine) RNH2 (R is fatty alkyl). It has a weak irritating ammonia smell, is not easily soluble in water, and is easily soluble in oxyform, ethanol, ether and benzene. It is alkaline and can react with acid to produce the…

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Hydropropyl Methylcellulose

Reagent

Hydropropyl Methylcellulose(PVC & Pharm) Hydropropyl Methylcellulose Introduction Synonym: HPMC, HPMC E50, HPMC pharm grade, Hydroxypropyl Methylcellulose CAS-no.:  9004-65-3   Hydropropyl Methyl Cellulose is a nonionic cellulose ether, white powder in appearance, odorless and tasteless. It is soluble in water and most polar organic solvents, and sells into transparent or slightly turbid colloidal solution in cold…