p-Phenylenediamine, an organic compound with the formulaC6H8N2, is one of the simplest aromatic diamines and a widely usedintermediate.
Mainly used in the manufacture of azo dyes and sulfide dyes, but alsoused in the production of fur black D, fur blue black DB, fur brown NZand rubber antiaging agent DNP, 288, DOP, DBP. P-phenylenediamineis also used as the raw material of cosmetic hair dye ur silk D, gasolinepolymer inhibitor and developer.Determination of ammonia, copper, gold, hydrogen sulfide, iron,magnesium, oxidant, ozone, sulfur dioxide and vanadiumdetermination of chromium. Fluorescent indicator for acid-basetitration (pHs3.1 no fuorescence, pH>4.4 orangefuorescence). Reducing agent.
A ni ọpọlọpọ awọn ile-iṣelọpọ giga-giga pẹlu ifowosowopo jinlẹ, eyiti o le fun ọ ni awọn ọja to gaju ati awọn idiyele ifigagbaga. Ati pe a tun le fun awọn ẹdinwo fun awọn rira olopobobo.Ati pe a ṣe ifọwọsowọpọ pẹlu ọpọlọpọ awọn ile-iṣẹ gbigbe ẹru ẹru ọjọgbọn, le fi awọn ọja ranṣẹ lailewu ati laisiyonu si ọwọ rẹ. Akoko ifijiṣẹ jẹ nipa awọn ọjọ 3-20 lẹhin ijẹrisi isanwo.
Ojuami yo | 139 °C |
Oju omi farabale | 267 °C(lit.) |
iwuwo | 1.135 g/cm3 (20ºC) |
oru iwuwo | 3.7 (vs air) |
oru titẹ | 1.08 mm Hg ( 100 °C) |
refractive atọka | 1.6339 (estimate) |
Fp | 156 °C |
iwọn otutu ipamọ. | 2-8°C |
solubility | Soluble in alcohol, chloroform, ether and hot benzene. |
pka | 4.17(at 25ºC) |
fọọmu | Powder or Flakes |
Colour Index | 76060 |
awọ | White, gray, or purple to brown |
PH | 9 (50g/l, H2O, 20ºC) |
PH Range | NonQ uorescence (3.1) to orange/yellow Q uorescence (4.4) |
Omi 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. |
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