Benzoyl peroxide

Benzoyl peroxide Property

mp : 105 °C(lit.) bp : 176°F density : 1.16 g/mL at 25 °C(lit.) Fp : >230 °F storage temp. : 2-8°C form : powder Water Solubility : Insoluble Merck : 14,1116 BRN : 984320 Stability:: Strong oxidizer. Highly flammable. Do not grind or subject to shock or friction. Incompatible with reducing agents, acids, bases, alcohols, metals, organic materials. Contact with combustible material, heating or friction may cause fire or explosion. CAS DataBase Reference: 94-36-0(CAS DataBase Reference) NIST Chemistry Reference: Benzoyl peroxide(94-36-0) EPA Substance Registry System: Peroxide, dibenzoyl(94-36-0)

Safety

Hazard Codes : O,Xn,N,Xi,E,T Risk Statements : 8-36/37/38-43-36-2-7-1-51/53-21/22-62-50-61-3-39/23/24/25-40 Safety Statements : 53-17-26-36/37-45-60-36/37/39-3/7-14A-14-47-35-7-61 RIDADR : UN 3108 5.2 WGK Germany : 2 RTECS : DM8575000 HazardClass : 5.2 PackingGroup : II Hazardous Substances Data: 94-36-0(Hazardous Substances Data)

Benzoyl peroxide Chemical Properties,Usage,Production

Chemical Properties white powder or crystals Usage vitamin B complex Usage Benzoyl Peroxide is a widely used organic compound of the peroxide family. Benzoyl Peroxide is often used in acne treatments , bleaching and polymerizing polyester and many other uses. General Description White, odorless powder, moderately toxic. Air & Water Reactions Insoluble in water. Reactivity Profile BENZOYL PEROXIDE is most dangerous when Benzoyl peroxide contains less then 1% water. A moisture content of 3% allowed slow burning only, and at 5% ignition did not occur [McCloskey, C. M. et al., Chem. Abs., 1967, 66, 12613c]. Mixed with a large surplus of water (30% or more) Benzoyl peroxide is relatively safe. In dry form Benzoyl peroxide is a very dangerous material; Benzoyl peroxide will explode spontaneously when heated above melting point (103° C). An explosion which occurred when a screw-capped bottle of the peroxide was opened was attributed to friction initiating a mixture of peroxide Ind organic dust in the cap threads [Lappin, G. R., Chem. Eng. News, 1948, 26, p.3518]. A violent explosion occurred during purification of the peroxide by Soxhlet extraction with hot chloroform [Anon., Sichere Chemiearb., 1976, 28, p. 49]. Benzoyl peroxide is a powerful oxidizer, Benzoyl peroxide ignites readily and burns rapidly. In contact with reducing agents Benzoyl peroxide may ignite by spontaneous chemical reaction. Benzoyl peroxide must be kept in a cool place in isolation, out of the sunlight or sources of heat, avoid shock or friction. Benzoyl peroxide reacts violently with inorganic or organic acids, alcohols, amines, metallic naphthenates and polymerization accelerators (e.g., N,N-dimethylaniline). Explosive or violent reaction on contact with dimethyl sulfide, lithium aluminum hydride or aniline [Bretherick, 5th ed., 1995, p. 1140]. Mixture with carbon tetrachloride and ethylene explodes when exposed to heat [Bolt, R. O. et al., Chem. Eng. News, 1947, 25, p. 1866]. Ignition occurred on contact with methyl methacrylate [MCA Case History No. 996], polymerization of vinyl acetate in ethyl acetate accelerated out of control leading to ignition and explosion [Vervalin, 1973, p. 81]. At 50° C a mixture of dibenzoyl peroxide and charcoal reacts violently producing dense white smoke of benzoic acid, benzene, phenyls and carbon dioxide [Leleu, Cahiers, 1980, 99, p. 279].

Benzoyl peroxide Preparation Products And Raw materials

Raw materials Phenylacetone Hydrogen peroxide Sodium hydroxide Benzoic acid Carbomer 940 Benzoyl chloride

Preparation Products sulfonic ion exchange membrane based on polypropylene/poly (ST-DVB) the preparation and adsorption of poly (p-hydroxystyrene) adsorbents Methyl 3-(bromomethyl)benzoate ethyl 4,6,6,6-tetrachloro-3,3-dimethylhexanoate Perbenzoic acid 4-Cyanobenzaldehyde 3-BROMO-2-((CYCLOPROPYLAMINO)METHYL)BENZALDEHYDE 4-bromoisoindoline Ozagrel Ethyl 4-bromocrotonate 3-Nitrobenzyl bromide 3-CYANOMETHYLPHENYLBORONIC ACID POLYETHYLENE, CHLORINATED POLY(VINYL ACETATE) 1,4-BIS(TRICHLOROMETHYL)BENZENE 4-METHYL-2-OXO-2 H-CHROMENE-7-CARBALDEHYDE 4-Bromomethylbenzamide 5-BROMOISOINDOLINE ETHOPERMETHRIN，95% optical diskbase material modified PMMA copolymer Polymaleic acid 2,5-DICHLOROTHIOPHENE-3-CARBONYL CHLORIDE 7-BROMOMETHYL-4-METHYL-CHROMEN-2-ONE (4-FLUORO-PHENYL)-METHANESULFONYL CHLORIDE ANION EXCHANGE RESIN 717 (3-FLUORO-PHENYL)-METHANESULFONYL CHLORIDE 2-(Bromomethyl)pyridine hydrobromide N-CHLOROMETHYL-N-PHENYLCARBAMOYL CHLORIDE Maleic acid-allyl alcohol copolymer maleic anhydride-benzylethylene sulfonated acid copolyer alpha,alpha'-Dibromo-p-xylene METHYL ALPHA-BROMOPHENYLACETATE Methyl 2-bromomethylbenzoate 4-(4-METHYLPIPERAZINOMETHYL)BENZOIC ACID Flour improver new Ni/carbonized resin catalyst Anagrelide DIBROM METHYL 2,5-DICHLOROTHIOPHENE-3-CARBOXYLATE 2,5-DICHLOROTHIOPHENE-3-CARBOXYLIC ACID

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