624-18-0
Product Name:
p-Phenylenediamine dihydrochloride
Formula:
C6H10Cl2N2
Synonyms:
1,4-Benzenediamine dihydrochloride;1,4-Phenylenediamine dihydrochloride;1,4-Phenylenediammonium dichloride
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | 1,4-phenylenediamine dihydrochloride appears as white to slightly reddish crystals or gray powder. (NTP, 1992) |
|---|---|
| Color/Form | WHITE TO SLIGHTLY REDDISH CRYSTALS |
| Melting Point | greater than 392 °F (NTP, 1992) |
| Solubility | greater than or equal to 100 mg/mL at 70 °F (NTP, 1992) |
| Vapor Density | Relative vapor density (air = 1): 6.2 |
| Decomposition | When heated to decomposition it emits very toxic fumes of nitrogen oxides and HCl. |
| Dissociation Constants | pKa = 6.2 /free base/ (conjugate acid) |
| Chemical Classes | Nitrogen Compounds -> Amines, Aromatic |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Environment GHS09 |
| GHS Hazard Statements |
H317:Sensitisation, Skin H319:Serious eye damage/eye irritation H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. 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 | 181.06 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 4 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 180.0221037 g/mol |
| Monoisotopic Mass | 180.0221037 g/mol |
| Topological Polar Surface Area | 52 Ų |
| Heavy Atom Count | 10 |
| Formal Charge | 0 |
| Complexity | 54.9 |
| 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 | 3 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
1,4-phenylenediamine dihydrochloride appears as white to slightly reddish crystals or gray powder. (NTP, 1992)