| [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. Containers may explode when heated. Risk of explosion if heated under confinement. Extinguishing media: Use water spray to cool fire-exposed containers. In case of fire use water spray, dry chemical, carbon dioxide, or chemical foam. Cool containers with flooding quantities of water until well after fire is out. | |
| [Fire Potential] Flammable/combustible material. May be ignited by friction, heat, sparks or flames. | |
| [Ingestion] 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. | |
| [Inhalation] Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear. | |
| [Skin] Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. | |
| [Eyes] Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. | |
| [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. | |
| [Handling] Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. 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. | |
| [Ingestion] May cause irritation of the digestive tract. | |
| [Inhalation] Inhalation of dust may cause respiratory tract irritation. | |
| [Skin] May cause skin irritation. | |
| [Eyes] Dust may cause mechanical irritation. | |
| [UN (DOT)] 1325 | |
| [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. | |
| [Appearance] White solid. | |
| [Solubility in water] Slightly soluble | |
| [Melting Point] 169 - 170 | |
| [pKa/pKb] 7.39 (pKa) | |
| [Product Name] 1-Hydroxybenzotriazole | |
| [Synonyms] 1-Hydroxy-1H-benzotriazole hydrate 1-Hydroxybenzotriazole hydrate Benzazimidol hydrate N-Hydroxybenzotriazole hydrate | |
| [CAS] "CASEN_2592-95-2.htm">2592-95-2 | |
| [Formula] C6H5N3O | |
| [Molecular Weight] 135.12 | |
| [EINECS] 219-989-7 | |
| [RTECS] DM1288000 | |
| [RTECS Class] Primary Irritant | |
| [Beilstein/Gmelin] 4515 | |
| [Beilstein Reference] 4-26-00-00095 | |
| [Small spills/leaks] Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation. | |
| [Incompatibilities] Copper nitrate. | |
| [Stability] Stable under normal shipping and handling conditions. Heating above 180C results in rapid exothermic decomposition. | |
| [Decomposition] Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen. | |
| [Combustion Products] Fire may produce irritating and/or toxic gases. | |
| [UN Number] 1325 | |
| [Hazard Class] 4.1 | |
| [Packing Group] II; III |
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