PROPIONYL CHLORIDE

PRODUCT IDENTIFICATION

CAS NO. 79-03-8

PROPIONYL CHLORIDE

EINECS NO. 201-170-0
FORMULA CH3CH2COCl
MOL WT. 92.53
H.S. CODE 2915.90

TOXICITY

 
SYNONYMS Propanoyl chloride; Propionic acid chloride;

SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

Clear to slightly yellow fuming liquid

MELTING POINT -94 C
BOILING POINT

80 C

SPECIFIC GRAVITY 1.06
SOLUBILITY IN WATER rapidly hydrolysis

SOLVENT SOLUBILITY

Soluble: chloroform, glacial acetic acid, ether, benzene
pH

 

VAPOR DENSITY 2.7

AUTOIGNITION

270 C

REFRACTIVE INDEX

1.4302

NFPA RATINGS

Health: 3 Flammability: 3 Reactivity: 2
FLASH POINT

6.5 C

STABILITY Stable under ordinary conditions but will fume when exposed to atmospheric moisture to form HCl and acetic acid.

DESCRIPTION AND APPLICATIONS

Acyl is a radical formed from an organic acid by removal of a hydroxyl group. The general formula of acyl compound is RCO-. Acyl halide is one of a large group of organic substances containing the halocarbonyl group, have the general formula RCO·X, where X is a halogen atom (fluorine, chlorine, bromine, iodine, and astatine) and R may be aliphatic, alicyclic, aromatic, and H etc. In substitutive chemical nomenclature, their names are formed by adding '-oyl' as a suffix to the name of the parent compound; ethanoyl chloride, CH3COCl, is an example. The terms acyl and aroyl halides refer to aliphatic or aromatic derivatives, respectively. Acyl halides are made by replacing the -OH group in carboxylic acids by halogen using halogenating agents. They react readily with water, alcohols, and amines and are widely used in organic synthetic process whereby the acyl group is incorporated into the target molecules by substitution of addition-elimination sequence called acylation reaction.  Acylation reaction involves substitution by an electron donor (nucleophile) at the electrophilic carbonyl group (C=O). Common nucleophiles in the acylation reaction are aliphatic and aromatic alcohols, both of which give rise to esters and amines (RNH2) which give amides. The carboxylic acid (X = OH) itself can function as an acylating agent when it is protonated by a strong acid catalyst as in the direct esterification of an alcohol. Two common acylation agents, with the general formula RCOX, are acid halides (X = halogen atom) and anhydrides (X = OCOR). Schotten-Baumann reaction is an acylation reaction that uses an acid chloride in the presence of dilute alkali to acylate the hydroxyl and amino group of organic compounds. There are also other acylating agents. Propionyl Chloride is a clear, corrosive and fuming liquid; melting point of -94 C, boiling point of 80 C, Refractive Index of 1.4302. It undergoes violently hydrolysis in presence of atmospheric moisture. It is soluble in ether, acetone, and acetic acid. It is widely used in agrochemicals and pharmaceuticals manufacturing. It is also used as an intermediate for dyes, textile auxiliaries, peroxide compounds.
SALES SPECIFICATION

APPEARANCE

Clear to slightly yellow fuming liquid

ASSAY

99.0% min

HCl

0.1% max

PROPIONIC ACID

0.5% max

COLOR

30 max, Hazen

TRANSPORTATION
PACKING 200kgs in drum
HAZARD CLASS 3 (Packing group: II)
UN NO. 1815
OTHER INFORMATION
Hazard Symbols: F C, Risk Phrases: 11-14-20-34, Safety Phrases: 9-16-26-45

PRICES

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