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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1,3,5-Trimethylpyrazole(1072-91-9)

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
1,3,5-Trimethylpyrazole
Synonyms
1,3,5-Trimethylpyrazole
CAS
1072-91-9
Formula
C6H10N2
Molecular Weight
110.15
Beilstein/Gmelin
110515
Beilstein Reference
5-23-05-00125

Physical and Chemical Properties

Appearance
Solid.
Solubility in water
Soluble
Melting Point
30 - 35
Boiling Point
167 - 170
Vapor Pressure
3 (25 C)
Density
0.9269 g/cm3 (40C)
pKa/pKb
10.17 (pKb)
Partition Coefficient
1.09
Heat Of Vaporization
38.0 kJ/mol
Refractive Index
1.4589 (57 C)

First Aid Measures

Ingestion
Get medical aid. Wash mouth out with water.
Inhalation
Remove from exposure to fresh air immediately.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing 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.

Handling and Storage

Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Ingestion
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation
May cause respiratory tract irritation. May be harmful if inhaled. Possible peripheral nervous system effects and mild liver dysfunction may occur. Alcohol consumed before and after exposure may increase adverse effects.
Skin
May cause skin irritation. May be harmful if absorbed through the skin.
Eyes
May cause eye irritation.
EC Risk Phrase
R 10 36/37/38
EC Safety Phrase
S 26 36
UN (DOT)
1325

Exposure Controls/Personal Protection

Personal Protection
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.

Fire Fighting Measures

Flash Point
50
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Accidental Release Measures

Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Stability
No data.
Incompatibilities
Strong oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Transport Information

UN Number
1325
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