CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | 1,2-dimethylhydrazine appears as a colorless liquid with an ammonia-like odor. Less dense than water. Contact irritate skin, eyes, and mucous membranes. Very toxic by ingestion, inhalation and skin absorption. Used to make photographic chemicals. |
|---|---|
| Color/Form | CLEAR, COLORLESS LIQ |
| Odor | FISHY, AMMONIA ODOR |
| Boiling Point | 177.8 °F at 760 mmHg (USCG, 1999) |
| Melting Point | -9 °C |
| Flash Point | 5 °F |
| Solubility | Miscible with alcohol, ether, dimethylformamide, hydrocarbons |
| Density | 0.8274 at 68 °F (USCG, 1999) - Less dense than water; will float |
| Vapor Density | Relative vapor density (air = 1): 2.07 |
| Vapor Pressure | 69.9 [mmHg] |
| LogP | log Kow = -0.54 /Estimated/ |
| Henry's Law Constant | Henry's Law constant = 5.5X10-6 atm-cu m/mol at 25 °C /Estimated/ |
| Decomposition | When heated to decomposition it emits toxic fumes of /nitrgen oxides/. |
| Corrosivity | Corrosive to skin |
| pH | Alkaline |
| Odor Threshold | The warning properties (irritation & odor) of the hydrazines are probably sufficient to prevent acute poisoning from short exposures. However, in view of the chronic toxicity properties, the warning properties should not be considered adequate for prolonged exposures. /Hydrazines/ |
| Refractive Index | Index of refraction: 1.4075 @ 20 °C/D |
| Dissociation Constants | pKa = 7.9 /Estimated/ |
| Kovats Retention Index | 594 |
| Other Experimental Properties | Extremely hygroscopic prisms, decomposition at 168 °C. /1,2-Dimethylhydrazine dihydrochloride/ |
| Chemical Classes | Nitrogen Compounds -> Hydrazines |
COMPUTED DESCRIPTORS
| Molecular Weight | 60.10 g/mol |
|---|---|
| XLogP3 | -0.4 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 1 |
| Exact Mass | 60.068748264 g/mol |
| Monoisotopic Mass | 60.068748264 g/mol |
| Topological Polar Surface Area | 24.1 Ų |
| Heavy Atom Count | 4 |
| Formal Charge | 0 |
| Complexity | 6 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
1,2-dimethylhydrazine appears as a colorless liquid with an ammonia-like odor. Less dense than water. Contact irritate skin, eyes, and mucous membranes. Very toxic by ingestion, inhalation and skin absorption. Used to make photographic chemicals.