sym-Dimethylhydrazine dihydrochloride
sym-Dimethylhydrazine dihydrochloride
CAS: 306-37-6
Molecular Formula: C2H10Cl2N2
sym-Dimethylhydrazine dihydrochloride - Names and Identifiers
sym-Dimethylhydrazine dihydrochloride - Physico-chemical Properties
| Molecular Formula | C2H10Cl2N2 |
| Molar Mass | 133.02 |
| Melting Point | 167-169°C (dec.)(lit.) |
| Boling Point | 63.9°C at 760 mmHg |
| Flash Point | 1.1°C |
| Water Solubility | almost transparency |
| Vapor Presure | 168mmHg at 25°C |
| Appearance | Crystalline Flakes or Powder |
| Color | White to light yellow |
| Merck | 14,3248 |
| BRN | 3905684 |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| MDL | MFCD00012522 |
| Physical and Chemical Properties | White crystal. Melting point 170 ℃ (decomposition). Soluble in water and ethanol. There is deliquescence. |
sym-Dimethylhydrazine dihydrochloride - Risk and Safety
| Risk Codes | R45 - May cause cancer R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R51/53 - 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.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 2811 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | MV2800000 |
| HS Code | 29280090 |
| Hazard Class | 6.1(b) |
| Packing Group | III |
sym-Dimethylhydrazine dihydrochloride - Reference Information
| chemical properties | white crystal. Melting point 170 ℃ (decomposition). Soluble in water and ethanol. There is deliquescence. |
| use | for organic synthesis. |
| Production method | The reaction of benzoyl chloride with hydrazine sulfate produces symmetrical dibenzoyl hydrazine, and then reacts with dimethyl sulfate to obtain symmetrical dibenzoyl dimethylhydrazine. Finally, it is refluxed with hydrochloric acid for 2 hours, steam distillation is carried out, and the remainder is evaporated to dryness under reduced pressure to crystallize symmetrical dimethylhydrazine hydrochloride. |
| EPA chemical information | information provided by: ofmpub.epa.gov (external link) |
Last Update：2024-04-09 21:01:54
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