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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Alkanesulfonic acid(75-75-2)

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
Alkanesulfonic acid
Synonyms
MCAT 1201
Methylsulfonic acid
MSA
CAS
75-75-2
Formula
CH4O3S
Molecular Weight
96.11
EINECS
200-898-6
RTECS
PB1140000
RTECS Class
Agricultural Chemical and Pesticide; Mutagen
Merck
13,5981
Beilstein/Gmelin
1446024
Beilstein Reference
4-04-00-00010
EC Index Number
607-145-00-4
EC Class
Corrosive

Physical and Chemical Properties

Appearance
Colorless liquid at room temperature or white crystalline solid below 20 deg C.
Solubility in water
Very soluble
Melting Point
20
Boiling Point
217
Vapor Pressure
0.0004 (25 C)
Density
1.502 g/cm3 (0 C)
pKa/pKb
Strong acid
Partition Coefficient
-.9
Usage
Catalyst in esterification, alkylation, olefin polymerization, peroxidation reactions, chemical intermediate to form secondary methane sulfonates from olefins, chemical intermediate for trifluoromethane sulfonic acid, methane sulfonyl chloride, as solvent.
Vapor Density
>AIR
Refractive Index
1.424 (25 C)

First Aid Measures

Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Discard contaminated clothing in a manner which limits further exposure. Destroy contaminated shoes.
Eyes
Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

Handling and Storage

Storage
Store in a tightly closed container. Keep under an argon blanket. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale. Do not allow contact with water. Wash clothing before reuse. Discard contaminated shoes.

Hazards Identification

Inhalation
Causes severe respiratory tract irritation.
Skin
Contact with liquid is corrosive and causes severe burns and ulceration.
Eyes
Contact with liquid is corrosive to the eyes and causes severe burns.
Ingestion
Harmful if swallowed. Causes gastrointestinal tract burns.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
EC Risk Phrase
R 34
EC Safety Phrase
S 26 36 45
UN (DOT)
2586

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Exposure Effects
Abnormal neuropsychologic function has been reported following hydrochloric acid exposure from a leaking tanker truck.
Poison Class
2

Fire Fighting Measures

Flash Point
189
Autoignition
> 500
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Reacts violently with water. Extinguishing media: Use dry chemical, carbon dioxide, or alcohol-resistant foam. Do NOT get water inside containers. Cool containers with flooding quantities of water until well after fire is out.
Fire Potential
Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Provide ventilation. Do not get water inside containers.

Stability and Reactivity

Disposal Code
4
Incompatibilities
Moisture, HF, Bases, Amines, Strong reducing agents, corrodes steel, ethylvinyl ether, iron, copper, brass, lead.
Stability
Stable under normal temperatures and pressures.
Decomposition
Carbon monoxide, oxides of sulfur, carbon dioxide.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
2586
Hazard Class
8
Packing Group
III
HS Code
2904 10 00
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