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1-Phenyltetrazole-5-thiol(86-93-1)

1-Phenyltetrazole-5-thiol(86-93-1)
Product IdentificationBack to Contents
【Product Name】

1-Phenyltetrazole-5-thiol
【Synonyms】

1-Phenyl-5-mercapto-1,2,3,4-tetrazole
1-Phenyl-5-mercaptotetrazole
1-Phenyltetrazole-5-thiol
5-Mercapto-1-phenyltetrazole
Mercaptophenyltetrazole
Phenylmercaptotetrazole
【CAS】

86-93-1
【Formula】

C7H6N4S
【Molecular Weight】

178.22
【EINECS】

201-710-5
【RTECS】

XF7700000
【RTECS Class】

Other
【Beilstein/Gmelin】

139068
【Beilstein Reference】

5-26-13-00097
【EC Class】

highly flammable
Physical and Chemical PropertiesBack to Contents
【Appearance】

White solid.
【Melting Point】

146 - 150
【Vapor Density】

6.1
First Aid MeasuresBack to Contents
【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. Wash mouth out with 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. Wash clothing before reuse.
【Eyes】

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Handling and StorageBack to Contents
【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. Flammables-area.
【Handling】

Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Take precautionary measures against static discharges. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Hazards IdentificationBack to Contents
【Inhalation】

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. Vapors may cause dizziness or suffocation. Mercaptans may cause nausea and headache.
【Skin】

May cause skin irritation. The toxicological properties of this material have not been fully investigated. Prolonged or repeated contact has been associated with the development of a dry scaly dermatitis or with secondary infections.
【Eyes】

May cause eye irritation. May cause conjunctivitis.
【Ingestion】

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. The toxicological properties of this substance have not been fully investigated. Mercaptans may cause nausea and headache.
【Hazards】

Contact with metals may evolve flammable hydrogen gas.
【EC Risk Phrase】

R 22
【EC Safety Phrase】

S 22 36/37
【UN (DOT)】

2811
Exposure Controls/Personal ProtectionBack to Contents
【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.
【Exposure Effects】

Prolonged or repeated skin contact may cause dermatitis. Prolonged or repeated eye contact may cause conjunctivitis.
【Poison Class】

3
Fire Fighting MeasuresBack to Contents
【Flash Point】

138
【Autoignition】

370
【Fire Fighting】

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Exposure to heat may promote violent decomposition. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Flammable solid. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water.
【Fire Potential】

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. Use water spray to reduce vapors or divert vapor cloud drift.
Stability and ReactivityBack to Contents
【Incompatibilities】

Oxidizing agents.
【Stability】

Unstable.
【Decomposition】

Nitrogen oxides, carbon monoxide, oxides of sulfur, irritating and toxic fumes and gases, carbon dioxide, nitrogen.
【Combustion Products】

Fire may produce irritating, corrosive and/or toxic gases.
Transport InformationBack to Contents
【UN Number】

2811
【Hazard Class】

6.1
【Packing Group】

I; II; III
【HS Code】

2933 99 90
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