Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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Carbonochloridic acid 1-methylethyl ester(108-23-6)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
Carbonochloridic acid 1-methylethyl ester
Synonyms
Carbonochloridic acid, 1-methylethyl ester
Chloroformic acid, isopropyl ester
Isopropyl chlorocarbonate
CAS
108-23-6
Formula
C4H7ClO2
Molecular Weight
122.56
EINECS
203-563-2
RTECS
LQ6475000
RTECS Class
Primary Irritant
Beilstein/Gmelin
506416
Beilstein Reference
4-03-00-00024

Physical and Chemical Properties

Appearance
Colorless liq. Pungent.
Solubility in water
Insoluble
Melting Point
-81
Boiling Point
103
Density
1.08 g/cm3 (20 C)
Partition Coefficient
1.51
Usage
Chemical intermediate for free-radical polymerization initiators, organic synthesis.
Vapor Density
4.2
Refractive Index
1.4013 (20 C)

First Aid Measures

Ingestion
Emesis not recommended - inducing vomiting is not indicated due to this chemical's irritant properties. Dilution - following ingestion and/or prior to gastric evacuation, immediately dilute with 4 to 8 ounces (120 to 240 ml) of milk or water (not to exceed 15 ml/kg in a child). Gastric lavage/precautions
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. Treat dermal irritation or burns with standard topical therapy. Patients developing dermal hypersensitivity reactions may require treatment with systemic or topical corticosteroids or antihistamines.
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
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
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
Ingestion may cause burns of the esophagus or gastrointestinal tract.
Inhalation
The irritation may be only mild enough to cause cough and dyspnea, or may cause noncardiogenic pulmonary edema and lung tissue destruction.
Skin
Dermal irritation, burns, and sensitization may occur.
Eyes
See Inhalation.
Hazards
Extremely dangerous; this chemical has exploded while stored in refrigerator. Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Like other chlorides, when heated to decomposition or on contact with acids or acrid fumes, they evolve highly toxic chloride fumes. Reacts violently with phosgene. Unstable, avoid phosgene
UN (DOT)
2407

Exposure Controls/Personal Protection

Personal Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Poison Class
1

Fire Fighting Measures

Flash Point
20 (closed cup)
Autoignition
>500
Fire Fighting
Isolate for 1/2 mile in all directions if tank car or truck is involved in fire.Keep unnecessary people away and isolate hazard area. Stay upwind and keep out of low areas. Wear self-contained (positive pressure if available) breathing apparatus and full protective clothing. For small fires, use dry chemical, carbon dioxide, water spray or foam. For large fires, use water spray, fog or foam. Do not get water inside container. Cool containers exposed to flame with water until well after fire is out. Withdraw immediately in case of rising sound from venting safety device or any discoloration of tank due to fire.
Upper exp. limit
15
Lower exp. limit
4
Fire Potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.

Accidental Release Measures

Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors.

Stability and Reactivity

Incompatibilities
Attacks many metals especially in humid atmosphere May react vigorously or explosively
Stability
Hydrolyzes readily in the presence of water or moist air.
Decomposition
May explode on heating. Decomposes on heating or on contact with acids producing toxic and corrosive fumes including chlorine and phosgene.
Combustion Products
Fire will produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
2407
Hazard Class
6.1
Packing Group
I
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