Description
p-Phenylenediamine Chemical Properties
| Melting point | 138-143 °C (lit.) |
| Boiling point | 267 °C (lit.) |
| density | 1.135 g/cm3 (20℃) |
| vapor density | 3.7 (vs air) |
| vapor pressure | 1.08 mm Hg ( 100 °C) |
| refractive index | 1.6339 (estimate) |
| Fp | 156 °C |
| storage temp. | Store below +30°C. |
| solubility | Soluble in alcohol, chloroform, ether and hot benzene. |
| Colour Index | 76060 |
| form | Powder or Flakes |
| pka | 4.17(at 25℃) |
| color | White, gray, or purple to brown |
| PH Range | NonQ uorescence (3.1) to orange/yellow Q uorescence (4.4) |
| PH | 9 (50g/l, H2O, 20℃) |
| Water Solubility | 47 g/L (25 ºC) |
| Merck | 14,7285 |
| BRN | 742029 |
| Exposure limits | TLV-TWA 0.1 mg/m3 (ACGIH 1989); TWA skin 0.1 mg/m3 (MSHA and OSHA); IDLH 25 mg/m3 (NIOSH); carcinogenicity: Animal Inadequate Evidence (IARC). . |
| Stability: | Stable, but oxidizes when exposed to air. Incompatible with oxidizing agents. Store under inert atmosphere. |
| Major Application | Nanoparticles, liquid crystal displays, chemical mechanical polishing, bottom antireflective coatings, electrochromic materials, inks, rubber, hair dyes, cosmetics, treatment of virus skin infection |
| InChIKey | CBCKQZAAMUWICA-UHFFFAOYSA-N |
| LogP | -0.84 at 20℃ |
| CAS DataBase Reference | 106-50-3(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,4-Benzenediamine(106-50-3) |
| IARC | 3 (Vol. 16, Sup 7) 1987 |
| EPA Substance Registry System | p-Phenylenediamine (106-50-3) |
Safety Information
| Hazard Codes | T,N,T+,Xn |
| Risk Statements | 23/24/25-36-43-50/53-63-36/37/38-45-40-48/22-67-52/53 |
| Safety Statements | 28-36/37-45-60-61-28A-24/25-23-53-26 |
| RIDADR | UN 1673 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | SS8050000 |
| F | 8-10-23 |
| Autoignition Temperature | 567 °C |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 29215119 |
| Hazardous Substances Data | 106-50-3(Hazardous Substances Data) |
| Toxicity | LD50 in rats (mg/kg): 80 orally, 37 i.p. (Burnett) |
| IDLA | 25 mg/m3 |
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