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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4-Methylbenzenesulfonic acid ethyl ester(80-40-0)

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
4-Methylbenzenesulfonic acid ethyl ester
Synonyms
Benzenesulfonic acid, 4-methyl-, ethyl ester
Ethyl 4-methylbenzenesulfonate
Ethyl tosylate
Toluene-4-sulfonic acid ethyl ester
CAS
80-40-0
Formula
C9H12O3S
Molecular Weight
200.26
EINECS
201-276-7
RTECS
XT6825000
RTECS Class
Tumorigen; Mutagen
Merck
13,3889
Beilstein/Gmelin
611213
Beilstein Reference
4-11-00-00248

Physical and Chemical Properties

Appearance
White crystals.
Solubility in water
Insoluble
Melting Point
30 - 32
Boiling Point
158
Vapor Pressure
.45
Density
1.166 g/cm3 (16 C)
Usage
Plasticizer for cellulose acetate, ethylating agent.
Vapor Density
8.09
Refractive Index
1.5131 (20 C)

First Aid Measures

Ingestion
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
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.
Eyes
Immediately 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
Refrigerator (approx 4 C). Keep containers tightly closed. Store in a cool, dry area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Use and store under nitrogen. Use only in a chemical fume hood. Do not breathe vapors.

Hazards Identification

Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated. May be harmful if swallowed.
Inhalation
May cause respiratory tract irritation. May cause irritation of the mucous membranes.
Skin
May cause skin irritation.
Eyes
Causes mild eye irritation.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
EC Risk Phrase
R 36/37/38 40
EC Safety Phrase
S 26 36/37/39
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 and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Poison Class
3

Fire Fighting Measures

Flash Point
157
Autoignition
500
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.
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. Clean up spills immediately, using the appropriate protective equipment. Provide ventilation.

Stability and Reactivity

Disposal Code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong bases, strong oxidizing agents.
Decomposition
Hydrogen chloride, carbon monoxide, oxides of sulfur, carbon dioxide, chloride fumes.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
2810
Hazard Class
6.1
Packing Group
I; II; III
HS Code
2904 10 00
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