| Product Identification | Back to Contents | 【Product Name】
Diphenylphosphoryl azide | 【Synonyms】
Bis(phenoxy)phosphoryl-diazonioazanide
Phosphorazidic acid, diphenyl ester | 【CAS】
26386-88-9 | 【Formula】
C12H10N3O3P | 【Molecular Weight】
275.20999999999998 | 【EINECS】
247-644-0 | 【Beilstein/Gmelin】
2058967 |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Yellow - colorless liquid. | 【Solubility in water】
Insoluble | 【Boiling Point】
157 (22.66 hPa) | 【Density】
1.27 g/cm3 | 【Usage】
Reagent for the synthesis of peptides. | 【Vapor Density】
9.49 | 【Refractive Index】
1.55 (20 C) |
| First Aid Measures | Back to Contents | 【Ingestion】
Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or 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. |
| Handling and Storage | Back to Contents | 【Storage】
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Refrigerator (approx 4 C). Storage under a nitrogen blanket has been recommended. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Ingestion】
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. May cause central nervous system effects. | 【Inhalation】
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. | 【Skin】
May cause skin irritation. | 【Eyes】
May cause eye irritation. | 【EC Risk Phrase】
R 23/24/25 36/38 | 【EC Safety Phrase】
S 26 36/37/39 45 | 【UN (DOT)】
2810 |
| Exposure Controls/Personal Protection | Back 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】
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
>110 | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Containers may explode when heated. Extinguishing media: Use agent most appropriate to extinguish fire. Cool containers with flooding quantities of water until well after fire is out. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam. |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Provide ventilation. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
9 | 【Incompatibilities】
Acids, heat, oxidizing agents. | 【Stability】
Stable under normal temperatures and pressures. | 【Decomposition】
Carbon monoxide, oxides of nitrogen, oxides of phosphorus, irritating and toxic fumes and gases, carbon dioxide, phosphine. |
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