100-63-0
Product Name:
Phenylhydrazine
Formula:
C6H8N2
Synonyms:
Hydrazinobenzene;Phenylhydrazine
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Phenylhydrazine appears as pale yellow crystals. Melting point 66 °F. Becomes an oily liquid. Toxic by ingestion, inhalation and skin absorption. Flash point 192 °F. Autoignition temperature 345 °F. Soluble in alcohol. |
|---|---|
| Color/Form | Monoclinic prisms or oil |
| Odor | Faint, aromatic odor. |
| Boiling Point | 471 °F at 760 mmHg (with decomposition) (USCG, 1999) |
| Melting Point | 68 °F (USCG, 1999) |
| Flash Point | 190 °F (USCG, 1999) |
| Solubility | Slight (NIOSH, 2023) |
| Density | 1.0978 (USCG, 1999) - Denser than water; will sink |
| Vapor Density | 3.7 (air= 1) |
| Vapor Pressure | 0.04 mmHg at 77 °F (NIOSH, 2023) |
| LogP | log Kow= 1.25 |
| Henry's Law Constant | Henry's Law constant = 2.9X10-8 atm-cu m/mole at 25 °C /Estimated/ |
| Autoignition Temperature | 345 °F (USCG, 1999) |
| Decomposition | When heated to decomposition it emits highly toxic fumes of /nitrogen oxides/. |
| Heat of Combustion | -875.4 kcal/g mol wt at 20 °C (solid) |
| Heat of Vaporization | 13,711.9 kcal/g mole |
| Surface Tension | 46.1 dynes/cm at 20 °C (in contact with vapor) |
| Ionization Potential | 7.64 eV |
| Refractive Index | Index of refraction: 1.60813 @ 20.3 °C/D |
| Dissociation Constants | Weak base, pK= 5.21 at 15 deg |
| Kovats Retention Index | 1157 |
| Other Experimental Properties | Conversion factors: 1 mg/l= 226 ppm; 1 ppm= 4.4 mg/cu m |
| Chemical Classes | Nitrogen Compounds -> Hydrazines |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H317:Sensitisation, Skin H319:Serious eye damage/eye irritation H341:Germ cell mutagenicity H350:Carcinogenicity H372:Specific target organ toxicity, repeated exposure H400:Hazardous to the aquatic environment, acute hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
COMPUTED DESCRIPTORS
| Molecular Weight | 108.14 g/mol |
|---|---|
| XLogP3 | 1.2 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 1 |
| Exact Mass | 108.068748264 g/mol |
| Monoisotopic Mass | 108.068748264 g/mol |
| Topological Polar Surface Area | 38 Ų |
| Heavy Atom Count | 8 |
| Formal Charge | 0 |
| Complexity | 57.5 |
| 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
Phenylhydrazine appears as pale yellow crystals. Melting point 66 °F. Becomes an oily liquid. Toxic by ingestion, inhalation and skin absorption. Flash point 192 °F. Autoignition temperature 345 °F. Soluble in alcohol.