Phenylhydrazine CAS#100-63-0
Excellent Solubility in Organic Solvents: Phenylhydrazine is readily soluble in alcohol, ether, chloroform, and benzene, making it highly suitable for a variety of organic synthesis and laboratory applications.
Versatile Physical Properties: Available as a pale yellow oily liquid, it possesses well-defined physical characteristics, including a melting point of 19.8°C and a boiling point of 173.5°C/13.33 kPa.
Steam Distillation Compatibility: The compound can be co-distilled with steam, providing flexibility in purification and processing operations.
Available in Multiple Forms: In addition to the liquid form, phenylhydrazine is also available as phenylhydrazine hydrochloride, a solid derivative with a decomposition temperature of 250–254°C, offering broader application possibilities.
Phenylhydrazine CAS#100-63-0
Phenylhydrazine is a pale yellow oily liquid with a melting point of 19.8°C and a boiling point of 173.5°C at 13.33 kPa. It has a refractive index of n²⁰D 1.608 and a relative density of 1.0978 at 20°C.
It is slightly soluble in water and petroleum ether, while readily soluble in alcohol, ether, chloroform, and benzene. The compound can be distilled with steam and tends to darken upon exposure to air.
Phenylhydrazine hydrochloride (CAS#59-88-1) is a solid form of the compound, with a decomposition melting point of 250–254°C.
Phenylhydrazine Chemical Properties
| Melting point | 18-21 °C (lit.) |
| Boiling point | 238-241 °C (lit.) |
| density | 1.098 g/mL at 25 °C (lit.) |
| vapor density | 4.3 (vs air) |
| vapor pressure | <0.1 mm Hg ( 20 °C) |
| refractive index | n20/D 1.607(lit.) |
| Fp | 192 °F |
| storage temp. | Store below +30°C. |
| solubility | Soluble in dilute acids. |
| form | Powder |
| pka | 8.79(at 15℃) |
| color | White to slightly blue or light beige |
| explosive limit | 1.1%(V) |
| Water Solubility | 145 g/L (20 ºC) |
| Sensitive | Air & Light Sensitive |
| Merck | 147293 |
| BRN | 606080 |
| Dielectric constant | 7.2（23℃） |
| Exposure limits | TLV-TWA skin 0.1 ppm (0.44 mg/m3) (ACGIH), 5 ppm (22 mg/m3) (OSHA); STEL 10 ppm (44 mg/m3) (OSHA); carcinogenicity: A2-Suspected Human Carcinogen (ACGIH), Carcinogen (NIOSH). . |
| Stability: | Stable, but may decompose in sunlight. May be air or light sensitive. Incompatible with strong oxidizing agents, metal oxides. |
| InChI | 1S/C6H8N2/c7-8-6-4-2-1-3-5-6/h1-5,8H,7H2 |
| InChIKey | HKOOXMFOFWEVGF-UHFFFAOYSA-N |
| SMILES | NNc1ccccc1 |
| CAS DataBase Reference | 100-63-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Hydrazine, phenyl-(100-63-0) |
| EPA Substance Registry System | Phenylhydrazine (100-63-0) |
Safety Information
| Hazard Codes | T,N |
| Risk Statements | 45-23/24/25-36/38-43-48/23/24/25-50-68 |
| Safety Statements | 53-45-61 |
| RIDADR | UN 2572 6.1/PG 2 |
| OEL | Ceiling: 0.14 ppm (0.6 mg/m3) [2-hr] [skin] |
| WGK Germany | 3 |
| RTECS | MV8925000 |
| F | 39744 |
| Autoignition Temperature | 345 °F |
| TSCA | TSCA listed |
| HS Code | 2928 00 90 |
| HazardClass | 6.1 |
| PackingGroup | II |
| Storage Class | 6.1A - Combustible, acute toxic Cat. 1 and 2 |
| very toxic hazardous materials | |
| Hazard Classifications | Acute Tox. 3 Dermal |
| Acute Tox. 3 Inhalation | |
| Acute Tox. 3 Oral | |
| Aquatic Acute 1 | |
| Carc. 1B | |
| Eye Irrit. 2 | |
| Muta. 2 | |
| Skin Irrit. 2 | |
| Skin Sens. 1 | |
| STOT RE 1 | |
| Hazardous Substances Data | 100-63-0(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 188 mg/kg |
| IDLA | 15 ppm |
