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
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4-Methylthiazole-5-carboxylic acid(20485-41-0)

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

Product Identification

Product Name
4-Methylthiazole-5-carboxylic acid
Synonyms
4-Methyl-1,3-thiazole-5-carboxylic acid
CAS
20485-41-0
Formula
C5H5NO2S
Molecular Weight
143.16999999999999
RTECS
XJ3680000
Beilstein/Gmelin
120745
Beilstein Reference
4-27-00-04008

Physical and Chemical Properties

Solubility in water
14 g/L (25 C)
Melting Point
235 - 241
Boiling Point
304
Vapor Pressure
0.0004 (25 C)
Density
1.42 g/cm3 (25 C)
pKa/pKb
0.94 (pKa)
Partition Coefficient
.58
Heat Of Vaporization
57.43 kJ/mol

First Aid Measures

Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
Skin
In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.
Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Handling and Storage

Storage
Keep container tightly closed.

Hazards Identification

Ingestion
May be harmful if swallowed.
Inhalation
Material may be irritating to mucous membranes and upper respiratory tract. May be harmful if inhaled.
Skin
May cause skin irritation. May be harmful if absorbed through the skin. May cause allergic skin reaction.
Eyes
May cause irritation.
Hazards
Emits toxic fumes under fire conditions.
EC Risk Phrase
43
EC Safety Phrase
37/39

Exposure Controls/Personal Protection

Personal Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
Respirators
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Where risk assessment shows air-purifying respirators are appropriate use a dust mask type N95 (US) or type P1 (EN 143) respirator.

Fire Fighting Measures

Flash Point
137
Fire Fighting
Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Accidental Release Measures

Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Incompatibilities
Oxidizing agents.
Stability
Stable at normal temperratures and pressures.
Decomposition
Carbon monoxide, Carbon dioxide, Nitrogen oxides, Sulfur oxides.
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