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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Mesitylenesulfonyl chloride(773-64-8)

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
Mesitylenesulfonyl chloride
Synonyms
2,4,6-Trimethylbenzenesulfonyl chloride
2,4,6-Trimethylphenylsulfonyl chloride
2-Hydroxy-1-ethanethiol
2-Mercaptoethanol
2-Mesitylenesulfonyl chloride
2-Sulfanylethanol
Monothioethyleneglycol
CAS
60-24-2
CAS
773-64-8
Formula
C2H6OS
Formula
C9H11ClO2S
Molecular Weight
78.13
Molecular Weight
218.7
EINECS
200-464-6
EINECS
212-257-8
RTECS
DB8930000
RTECS
KL5600000
RTECS Class
Mutagen; Primary Irritant
RTECS Class
Other
Merck
13,5894
Beilstein/Gmelin
1107601
Beilstein/Gmelin
773648
Beilstein Reference
3-11-00-00346
Beilstein Reference
4-01-00-02428
EC Class
toxic, corrosive, dangerous for the environment
EC Class
corrosive

Physical and Chemical Properties

Appearance
Colorless liquid with a faint characteristic odor.
Appearance
Slightly beige solid.
Solubility in water
Soluble
Solubility in water
Insoluble
Melting Point
53 - 56
Melting Point
-100
Boiling Point
150 (20 torr)
Boiling Point
157
Vapor Pressure
1.0 (25 C)
Density
1.1317 g/cm3 (0 C)
pKa/pKb
9.74 (pKa)
Partition Coefficient
-.326
Heat Of Vaporization
45.9 kJ/mol
Usage
Solvent for dyestuffs, intermediate for producing dyestuffs, pharmaceuticals, rubber chemicals, flotation agents, insecticides, plasticizers, water-soluble reducing agent, biochemical reagent, pvc stabilizers, agricultural chemicals, textile auxiliary.
Vapor Density
7.5
Saturation Concentration
81600 ppm (8.2%) at 20 C
Vapor Density
2.7
Odor threshold
0.38 mg/m3
Refractive Index
1.4963 (20 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.
Ingestion
Harmful if swallowed. May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause muscle paralysis, respiratory failure, and possible death.
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. DO NOT use mouth-to-mouth respiration.
Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.
Inhalation
Inhalation of high concentrations may cause central nervous system effects characterized by headache, dizziness, unconsciousness and coma. Causes respiratory tract irritation. May cause dyspnea (difficult breathing from shortness of breath). Exposure to high concentrations of mercaptans can produce unconsciousness with cyanosis, cold extremities and rapid pulse. Mercaptans may cause nausea and headache.
Skin
May be fatal if absorbed through the skin. Causes irritation with burning pain, itching, and redness.
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.
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. Destroy contaminated shoes.
Eyes
May cause severe eye irritation. May result in corneal injury.
Eyes
Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).
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
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Storage
Keep container closed when not in use. Corrosives area. Refrigerator (approx 4 C).
Handling
Keep container tightly closed. Do not get on skin or in eyes. Do not ingest or inhale. Use with adequate ventilation. Discard contaminated shoes.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Do not get in eyes, on skin, or on clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Do not ingest or inhale. Do not allow contact with water. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

Hazards Identification

Ingestion
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns.
Inhalation
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. Causes chemical burns to the respiratory tract.
Skin
May cause severe irritation and possible burns.
Eyes
Contact with eyes may cause severe irritation, and possible eye burns.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. May polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
EC Risk Phrase
R 20/22 24 34 51/53
EC Risk Phrase
R 34
EC Safety Phrase
S 26 36/37/39 45
EC Safety Phrase
S 26 36/37/39 45 61
UN (DOT)
1759
UN (DOT)
2966

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 minimize contact with skin.
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.
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. Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Exposure Effects
Prolonged or repeated skin contact may cause defatting and dermatitis. Repeated or prolonged exposure may cause CNS stimulation.
Exposure limit(s)
OEL-RUSSIA:STEL 1 mg/m3
Poison Class
3

Fire Fighting Measures

Flash Point
>112
Flash Point
68
Autoignition
295
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Combustion generates toxic fumes. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Combustible Liquid. Extinguishing media: Do NOT get water inside containers. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. Cool containers with flooding quantities of water until well after fire is out.
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. Extinguishing media: Do NOT use water directly on fire. Use foam, dry chemical, or carbon dioxide.
Upper exp. limit
18
Lower exp. limit
2.3
Fire Potential
May burn but does not ignite readily.
Fire Potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Scoop up with a nonsparking tool, then place into a suitable container for disposal. Remove all sources of ignition. Provide ventilation.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Disposal Code
11
Disposal Code
6
Incompatibilities
Oxidizing agents.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizers, calcium hypochlorite, metals, strong acids, caustics, aliphatic amines, isocyanates.
Decomposition
Hydrogen chloride, carbon monoxide, oxides of sulfur, carbon dioxide.
Decomposition
Carbon monoxide, oxides of sulfur, irritating and toxic fumes and gases, carbon dioxide.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
2966
UN Number
1759
Hazard Class
6.1
Hazard Class
8
Packing Group
I; II; III
Packing Group
II
HS Code
2904 90 20
HS Code
2930 90 70
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