4-tert-BUTYLBENZALDEHYDE

PRODUCT IDENTIFICATION
CAS NO 939-97-9

4-tert-BUTYLBENZALDEHYDE

EINECS NO. 213-367-9
FORMULA (CH3)3CC6H4CHO
MOL WT. 162.23

H.S.CODE

  
TOXICITY  
SYNONYMS p-tert-Butylbenzaldehyde; TBBA; 4-(1,1-dimethylethyl)-benzaldehyde;
PRICE

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE clear to pale yellow liquid
MELTING POINT

 

BOILING POINT

130 C

SPECIFIC GRAVITY

0.97

SOLUBILITY IN WATER

 

pH  
VAPOR DENSITY  

NFPA RATINGS

  

AUTOIGNITION

 

REFRACTIVE INDEX

 1.5270
FLASH POINT

 

STABILITY Stable under ordinary conditions

GENERAL DESCRIPTION & APPLICATIONS
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. Benzaldehyde 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. Benzaldehyde and its derivatives are used chiefly in the synthesis of other organic compounds, ranging from pharmaceuticals to plastic additives. They are important intermediate for the processing of perfume and flavouring compounds and in the preparation of certain aniline dyes. 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. 4-tert-Butylbenzaldehyde is used in perfumery. It is used as an intermediate for pharmaceuticals and agrochemicals.
SALES SPECIFICATION

APPEARANCE

 clear to pale yellow liquid
PURITY

98.5% min ( m Form 95% min )

SPECIFIC GRAVITY 0.960 - 0.980 at 20 C
TRANSPORTATION
PACKING 200kgs in drum
HAZARD CLASS  
UN NO.  
OTHER INFORMATION