122-66-7
1,2-Diphenylhydrazine
CAS: 122-66-7
Molecular Formula: C12H12N2
122-66-7 - Names and Identifiers
| Name | 1,2-Diphenylhydrazine |
| Synonyms | HYDRAZOBENZENE N,N'-Bianiline Hydrazobenzene hydrazodibenzene 1,2-Diphenyldrazine 1,2-DIPHENYLDIAZANE SYM-DIPHENYLHYDRAZINE 1,2-Diphenylhydrazine 1,2-DIPHENYLHYDRAZINE 1,1'-hydrazodibenzene N,N'-diphenylhydrazine Hydrazobenzene solution (sym)-diphenylhydrazine sym-DIPHENYLHYDRAZINE, PRACT Diphenylhydrazine, 1,2-? DPH Hydrazobenzene,N,N′-Diphenylhydrazine |
| CAS | 122-66-7 |
| EINECS | 204-563-5 |
| InChI | InChI=1/C12H12N2/c1-3-7-11(8-4-1)13-14-12-9-5-2-6-10-12/h1-10,13-14H |
| InChIKey | YBQZXXMEJHZYMB-UHFFFAOYSA-N |
122-66-7 - Physico-chemical Properties
| Molecular Formula | C12H12N2 |
| Molar Mass | 184.24 |
| Density | 1,158 g/cm3 |
| Melting Point | 123-126°C(lit.) |
| Boling Point | 308.2°C (rough estimate) |
| Flash Point | 87.7°C |
| Water Solubility | 221 mg/L at 25 °C (U.S. EPA, 1980a) |
| Solubility | Soluble in ethanol (Weast, 1986). |
| Vapor Presure | 2.6 x 10-5 mmHg at 25 °C (Mabey et al., 1982) |
| Appearance | neat |
| Color | Colorless to pale yellow to orange crystals |
| BRN | 639793 |
| pKa | 3.02±0.70(Predicted) |
| Storage Condition | Refrigerator |
| Stability | Stable. Incompatible with strong oxidizing agents, strong acids. |
| Refractive Index | 1.6266 (estimate) |
| Physical and Chemical Properties | Melting Point: 131 ℃ Boiling Point: 309 ℃ water solubility: 0.0068g/100 mL density: 1.158 Appearance: orange powder |
| Use | It is used as a raw material for organic synthesis, and is also used for the preparation of antipyretic and analgesic drugs. |
122-66-7 - Risk and Safety
| Risk Codes | R45 - May cause cancer R22 - Harmful if swallowed R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 3077 9/PG 3 |
| WGK Germany | 3 |
| RTECS | MW2625000 |
| FLUKA BRAND F CODES | 10-23 |
| TSCA | Yes |
| HS Code | 29280000 |
| Hazard Class | 6.1 |
| Packing Group | III |
| Toxicity | Acute oral LD50 for rats 301 mg/kg (quoted, RTECS, 1985). |
122-66-7 - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| uses | the pharmaceutical industry is used to produce antipyretic and analgesic phenylpropanone; The dye industry is used to manufacture benzidine dyes, etc. It is used as a raw material for organic synthesis, and also used to make antipyretic and analgesic drugs. It is also used as a raw material for organic synthesis, and also used to make antipyretic and analgesic drugs. |
| Production method | There are two methods for diphenylhydrazine obtained by reducing nitrobenzene. 1. Reduction with zinc powder; 2. Reduction with glucose and silicon powder. |
| category | toxic substances |
| flammability hazard characteristics | Open flame is combustible; it works with oxidant; high heat decomposes toxic nitrogen oxide smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from oxidants, food additives and acids |
| fire extinguishing agent | foam, mist water, carbon dioxide, sand |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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