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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Methyl p-tosylate(80-48-8)

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
Methyl p-tosylate
Synonyms
Methyl 4-methylbenzenesulfonate
Methyl p-toluenesulfonate
Methyl tosylate
CAS
80-48-8
Formula
C8H10O3S
Molecular Weight
186.23
EINECS
201-283-5
RTECS
XT7000000
RTECS Class
Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Primary Irritant
Beilstein/Gmelin
609209
Beilstein Reference
4-11-00-00247
EC Class
harmful, irritant, sensitizing

Physical and Chemical Properties

Appearance
White or light brown crystals, liquid above 28 deg c.
Solubility in water
Slightly soluble
Melting Point
28 - 30
Boiling Point
292
Vapor Pressure
0.0033 (25 C)
Density
1.2087 g/cm3 (40 C)
Partition Coefficient
1.3
Heat Of Vaporization
51.0 kJ/mol
Usage
Methylating agent in organic synthesis.
Vapor Density
6.45
Refractive Index
1.5184 (20 C)

First Aid Measures

Ingestion
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
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Remove contaminated clothing and shoes.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion
Harmful if swallowed. Causes digestive tract irritation.
Inhalation
Causes respiratory tract irritation.
Skin
Causes skin irritation.
Eyes
Causes eye irritation.
EC Risk Phrase
R 22 36/37/38 40 43
EC Safety Phrase
S 26 28 36/37/39 45
UN (DOT)
2810

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.
Poison Class
3

Fire Fighting Measures

Flash Point
130
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Water or foam may cause frothing.

Accidental Release Measures

Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents - strong acids - strong bases.
Decomposition
Carbon monoxide, oxides of sulfur, carbon dioxide.

Transport Information

UN Number
2810
HS Code
2905 19 00
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