PRODUCT IDENTIFICATION

100-52-7

106.12

H.S. CODE

TOXICITY

CLASSIFICATION

Flavor, Aldehyde, Solvent

EXTRA NOTES

EPA Pesticide Chemical Code 008601
FEMA No. 2127
UN1990

PHYSICAL AND CHEMICAL PROPERTIES

Colourless to yellow liquid with bitter almonds odor

MELTING POINT

SOLUBILITY IN WATER

miscible with alcohol, ether

AUTOIGNITION

192 C

NFPA RATINGS

REFRACTIVE INDEX

64 C

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking

Google Scholar Search

Drug Information Portal (U.S. National Library of Medicine) - Benzaldehyde

PubChem Compound Summary - Benzaldehyde

IPCS INCHEM -   Benzaldehyde

KEGG (Kyoto Encyclopedia of Genes and Genomes) -   Benzaldehyde

http://www.ebi.ac.uk/ -   Benzaldehyde

http://www.ncbi.nlm.nih.gov/ -   Benzaldehyde

Material Safety Data Sheet

http://toxnet.nlm.nih.gov/
Hazardous Substances Data Bank - Benzaldehyde

Local:
Benzaldehyde(also called Benzenecarbonal) is the simplest representative of the aromatic aldehydes. It is a colorless liquid aldehyde with a characteristic almond odor. It boils at 180°C, is soluble in ethanol, but is insoluble in water. Benzaldehyde is formed by partial oxidation of benzyl alcohol and readily oxidized to benzoic acid and is converted to addition products by hydrocyanic acid or sodium bisulfite. It is also prepared by oxidation of toluene or benzyl chloride or by treating benzal chloride with an alkali, e.g., sodium hydroxide. It is used chiefly in the synthesis of other organic compounds, ranging from pharmaceuticals to plastic additives and benzaldehyde is an important intermediate for the processing of perfume and flavouring compounds and in the preparation of certain aniline dyes. It is the first step in the synthesis for fragrances.It undergoes simultaneous oxidation and reduction with alcoholic potassium hydroxide, giving potassium benzoate and benzyl alcohol. It is converted to benzoin with alcoholic potassium cyanide, with anhydrous sodium acetate and acetic anhydride, giving cinnamic acid. Compounds which do not have alpha-hydrogen atoms cannot form an enolate ion and do not undergo electrophilic alpha-substitution and aldol condensation. Aromatic aldehydes such as benzaldehyde and formaldehyde may undergo disproportionation in concentrated alkali (Cannizaro's reaction); one molecule of the aldehyde is reduced to the corresponding alcohol and another molecule is simultaneously oxidized to the salt of a carboxylic acid. The speed of the reaction depends on the substituents in the aromatic ring. Two different types of aldehydes (aromatic and aliphatic) can undergo crossing reaction to form fomaldehyde and aromatic alcohols.

APPEARANCE

99.0% min

20ppm max

0.5% max (as Benzoic Acid)

BOILING POINT

177 ~ 182 C

1.041 - 1.043

HAZARD OVERVIEW

Combustible Liquid, Target Organ Effect, Harmful by ingestion., Harmful by skin absorption., Skin and respiratory sensitizer, Irritant. Target Organs: Central nervous system, Liver, Kidney

GHS

PICTOGRAMS

HAZARD STATEMENTS

H302

P STATEMENTS

P280-P301 + P310

RISK PHRASES

22

SAFETY PHRASES

24