Product Name:

Valeryl chloride

Synonyms:

N-butanecarbonylchloride;valeryl;N-VALERYL CHLORIDE;
N-VALEROYL CHLORIDE;N-PENTANOYL CHLORIDE;
PENTANOYL CHLORIDE;VACL;VALERYL CHLORIDE

CAS:

638-29-9

MF:

C5H9ClO

MW:

120.58

EINECS:

211-330-1

Product Categories:

ACID CHLORIDES;Acid Halides;Carbonyl Compounds;
Organic Building Blocks;Acid Halides;Building Blocks;
Carbonyl Compounds;Chemical Synthesis;Organic Building Blocks

Mol File:

638-29-9.mol

Valeryl chloride Chemical Properties

Melting point 

-110 °C

Boiling point 

125-127 °C(lit.)

density 

1.016 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.42(lit.)

Fp 

91 °F

storage temp. 

Flammables area

form 

Liquid

color 

Clear colorless to light yellow

Water Solubility 

decomposes

Sensitive 

Moisture Sensitive

BRN 

506293

CAS No.

638-29-9(CAS DataBase Reference)

NIST Chemistry Reference

Pentanoyl chloride(638-29-9)

EPA Substance Registry System

Pentanoyl chloride (638-29-9)

Safety Information

Hazard Codes 

C

Risk Statements 

10-20-35-34

Safety Statements 

26-36/37/39-45

RIDADR 

UN 2502 8/PG 2

WGK Germany 

3

RTECS 

YV9107500

TSCA 

Yes

HazardClass 

8

PackingGroup 

II

HS Code 

29159080

Valeryl chloride Usage And Synthesis

Chemical Properties

clear colorless to light yellow liquid

General Description

A colorless fuming liquid with a pungent odor. Flash point 74°F.
Fumes irritate the eyes and mucous membranes. Corrosive.

Air & Water Reactions

Highly flammable. Fumes in air.
Reacts exothermically with water to generate hydrochloric and valeric acids, which are corrosive.

Reactivity Profile

Valeryl chloride is acidic. Incompatible with water, with bases,
including amines, and with strong oxidizing agents and alcohols. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts.

Health Hazard

May cause toxic effects if inhaled or ingested/swallowed.
Contact with substance may cause severe burns to skin and eyes.
Fire will produce irritating, corrosive and/or toxic gases.
Vapors may cause dizziness or suffocation. R
unoff from fire control or dilution water may cause pollution.

Fire Hazard

Flammable/combustible material. May be 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.

Safety Profile

A corrosive irritant to skin, eyes, and mucous membranes. When heated to decomposition it emits toxic fumes of Cl-.