Benzaldehyde

Benzaldehyde Property

mp : -26 °C bp : 179 °C density : 1.05 vapor density : 3.7 (vs air) vapor pressure : 4 mm Hg ( 45 °C) FEMA : 2127 refractive index : n20/D 1.545(lit.) Fp : 145 °F storage temp. : room temp Water Solubility : <0.01 g/100 mL at 19.5 ºC FreezingPoint : -56℃ Sensitive : Air Sensitive Merck : 14,1058 BRN : 471223 Stability:: Stable. Combustible. Incompatible with strong oxidizing agents, strong acids, reducing agents, steam. Air, light and moisture-sensitive. CAS DataBase Reference: 100-52-7(CAS DataBase Reference) NIST Chemistry Reference: Benzaldehyde(100-52-7) EPA Substance Registry System: Benzaldehyde(100-52-7)

Safety

Hazard Codes : Xn Risk Statements : 22 Safety Statements : 24 RIDADR : UN 1990 9/PG 3 WGK Germany : 1 RTECS : CU4375000 F : 8 HazardClass : 9 PackingGroup : III Hazardous Substances Data: 100-52-7(Hazardous Substances Data)

Benzaldehyde Chemical Properties,Usage,Production

Chemical Properties Colorless to light yellow liquid General Description A clear colorless to yellow liquid with a bitter almond odor. Flash point near 145°F. More denser than water and insoluble in water. Hence sinks in water. Vapors are heavier than air. The primary hazard is to the environment. Immediate steps should be taken to limit spread to the environment. Easily penetrates the soil to contaminate groundwater and nearby waterways. Used in flavoring and perfume making. Air & Water Reactions Oxidizes in air to form benzoic acid, which is moderately toxic by ingestion. Insoluble in water. Reactivity Profile A nontoxic, combustible liquid, reacts with oxidizing reagents. Benzaldehyde must be blanketed with an inert gas at all times since Benzaldehyde is oxidized readily by air to benzoic acid [Kirk-Othmer, 3rd ed., Vol. 3, 1978, p. 736]. In contact with strong acids or bases Benzaldehyde will undergo an exothermic condensation reaction [Sax, 9th ed., 1996, p. 327]. A violent reaction was observed on contact with peroxyacids (peroxyformic acid) [DiAns, J. et al., Ber., 1915, 48, p. 1136]. An explosion occurred when pyrrolidine, Benzaldehyde, and propionic acid were heated to form porphyrins. Health Hazard Inhalation of concentrated vapor may irritate eyes, nose and throat. Liquid is irritating to the eyes. Prolonged contact with the skin may cause irritation. Fire Hazard HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

Benzaldehyde Preparation Products And Raw materials

Raw materials CARBON MONOXIDE Benzyl chloride Benzyl alcohol Zinc oxide Toluene Chlorine Palladium Molybdenum trioxide Zinc phosphate Ozone Amygdalin trans-Cinnamaldehyde Aluminium chloride hexahydrate Cinnamon oil Sodium carbonate

Preparation Products DL-Mandelic acid FLAVANONE 2-amino-5-chloro-diphenyl methanol 1-[2-[2-hydroxy-3-(propylamino)propoxy]phenyl]-3-phenylpropan-1-one hydrochloride TRANS-2-PHENYL-1-CYCLOPROPANECARBOXYLIC ACID whitener WG for wool Benzenemethanol, ar-methyl-, acetate BENZYLHYDRAZINE DIHYDROCHLORIDE alpha-Hexylcinnamaldehyde Diaveridine Acid Blue 90 2,4,5-TRIPHENYLIMIDAZOLE L-Phenylglycine 3,4-Dichlorobenzylamine Magentagreencrystals Reactive Blue BRF Benzalacetone 5,5-Diphenylhydantoin 1-AMINO-4-METHYLPIPERAZINE DIHYDROCHLORIDE MONOHYDRATE 2-(Acetylamino)-3-phenyl-2-propenoic acid Methyl 1H-indole-2-carboxylate Acid Blue 9 2-[2-(4-Fluorophenyl)-2-oxo-1-phenylethyl]-4-methyl-3-oxo-N-phenylpentanamide N,N'-Dibenzyl ethylenediamine diacetate Bis(dibenzylideneacetone)palladium ASTRAZON BRILLIANT RED 4G Reactive Blue 104 Nifedipine Epalrestat 4-Hydroxybenzylideneacetone 2-PHENYL-1.3-DIOXOLANE-4-METHANOL 3,5-DIPHENYLPYRAZOLE 2-((E)-2-Hydroxy-3-phenylacryloyl)benzoic acid ,97% (R)-(+)-N-Benzyl-1-phenylethylamine N,N'-BISBENZYLIDENEBENZIDINE Nitrotetrazolium blue chloride L-Arginine hydrochloride (E)-3-Benzylidene-3H-isochromene-1,4-dione ,97% 2,3,5-Triphenyltetrazolium chloride Tris(dibenzylideneacetone)dipalladium

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