Product Identification

Product Name

Octadecanoyl chloride

Synonyms

Stearic acid chloride
Stearic cgkirude
Stearoyl chloride
Stearyl chloride

CAS

112-76-5

Formula

C18H35ClO

Molecular Weight

302.98

EINECS

204-004-5

RTECS

RG2162000

RTECS Class

Other

Beilstein/Gmelin

639784

Beilstein Reference

4-02-00-01240

Physical and Chemical Properties

Appearance

Clear, yellow liquid.

Solubility in water

Insoluble

Melting Point

164 - 167

Boiling Point

348

Vapor Pressure

5E-5 (25 C)

Density

0.9007 g/cm3 (25 C)

Partition Coefficient

8.96

Heat Of Vaporization

59.2

Usage

Prepn of substituted amines and amides, acid anhydrides, esterification of alcohols, synthesis of other organic compound.

Refractive Index

1.4523 (24 C)

First Aid Measures

Ingestion

The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.

Inhalation

Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.

Skin

Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. Pesticides - remove contaminated clothing and jewelry. Wash the skin, including hair and nails, vigorously; do repeated soap washings. Discard contaminated clothing. Irritation - treat dermal irritation or burns with standard topical therapy

Eyes

Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Handling and Storage

Storage

Store in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket. Corrosives area.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Ingestion

Causes gastrointestinal irritation with nausea, vomiting and diarrhea.

Inhalation

May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema. Causes chemical burns to the respiratory tract. May cause abdominal pain, nausea, vomiting, and inflammation of the gums and mouth.

Skin

Causes burns.

Eyes

Causes eye burns. Lachrymator.

Hazards

When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.

EC Risk Phrase

R 34 37

EC Safety Phrase

S 26 36/37/39 45

UN (DOT)

3265

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate protective gloves, clothing and goggles.

Respirators

Wear positive pressure self-contained breathing apparatus (SCBA).

Poison Class

4

Fire Fighting Measures

Flash Point

170

Fire Fighting

Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Dry chemical, carbon dioxide, alcohol-resistant foam or water spray.

Fire Potential

Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks

ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.

Stability and Reactivity

Stability

No data.

Incompatibilities

Oxidizing agents, strong bases, water, alcohols.

Decomposition

Hydrogen chloride, phosgene, carbon monoxide, carbon dioxide.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

3265

Hazard Class

8

Packing Group

I; II; III