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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1,2,4-1H-Triazole(288-88-0)

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
1,2,4-1H-Triazole
Synonyms
1H-1,2,4-Triazole
Pyrrodiazole
s-Triazole
CAS
288-88-0
Formula
C2H3N3
Molecular Weight
69.069999999999993
EINECS
206-022-9
RTECS
XZ3806000
RTECS Class
Drug; Primary Irritant
Merck
12,9735
Beilstein/Gmelin
104767
Beilstein Reference
5-26-01-00082
EC Index Number
613-111-00-X
EC Class
Toxic for reproduction Category 3; Harmful; Irritant

Physical and Chemical Properties

Appearance
Pale yellow crstals with a characteristic odor.
Solubility in water
1250 g/L
Melting Point
116 - 119
Boiling Point
260
Vapor Pressure
0.02 (25 C)
Density
1.394 g/cm3 (25 C)
pKa/pKb
10.18 (pKa)
Partition Coefficient
-1.2
Heat Of Vaporization
47.8 kJ/mol
Heat Of Combustion
-1322 kJ/mol
Usage
Used to produce antifungals.

First Aid Measures

Ingestion
Get medical aid. Wash mouth out with water.
Inhalation
Remove from exposure to fresh air immediately.
Skin
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.

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
Harmful if swallowed. May cause irritation of the digestive tract.
Inhalation
May cause respiratory tract irritation. May be harmful if inhaled.
Skin
May be harmful if absorbed through the skin.
Eyes
Causes eye irritation.
EC Risk Phrase
R 22 36 63
EC Safety Phrase
S 36/37

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
140
Autoignition
490
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. Use agent most appropriate to extinguish fire.

Accidental Release Measures

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

Stability and Reactivity

Disposal Code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Hydrogen cyanide, nitrogen oxides, carbon monoxide, carbon dioxide, ammonia.

Transport Information

HS Code
2933 99 90
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