Skin Whitening Hydroquinone CAS 123-31-9 with Best Price
| Melting point | 172-175 °C(lit.) |
| Boiling point | 285 °C(lit.) |
| density | 1.32 |
| vapor density | 3.81 (vs air) |
| vapor pressure | 1 mm Hg ( 132 °C) |
| refractive index | 1.6320 |
| Fp | 165 °C |
| storage temp. | Refrigerator |
| solubility | H2O: 50 mg/mL, clear |
| form | Needle-Like Crystals or Crystalline Powder |
| pka | 10.35(at 20ºC) |
| color | White to off-white |
| Water Solubility | 70 g/L (20 ºC) |
| Sensitive | Air & Light Sensitive |
use1
Used as imaging agents, dyes, and pharmaceutical raw materials. Hydroquinone is the herbicides quizalofop-p-ethyl, difluoxyp-ethyl, thiazoxypyr, fenoxaprop-p-ethyl, haloxyfop, and lactofop-p-ethyl The intermediates are also pharmaceutical and dye intermediates.
use2
Hydroquinone is mainly used as a photographic developer. Hydroquinone and its alkyl compounds are widely used as inhibitors added during monomer storage and transportation, and the commonly used concentration is about 200 ppm. Hydroquinone monomethyl ether is an intermediate of edible oil antioxidant BHA; hydroquinone dimethyl ether is an intermediate of dyes, organic pigments and fragrances; hydroquinone diethyl ether is an intermediate of photosensitive pigments and dyes . Hydroquinone is also used to make N,N'Chemicalbook-diphenyl-p-phenylenediamine, which is an antioxidant and deodorant used in rubber and gasoline.
use3
Used as an analytical reagent, reducing agent for copper and gold, and developer for colorimetric determination of phosphorus, magnesium, niobium, copper, silicon and arsenic. Polarographic and volumetric determination of iridium. Reducing agent of heteropoly acid, reducing agent of copper and gold. Test phosphate, tungstate, nitrate, nitrite and tellurium, etc.
use4
Photometric determination of phosphorus, magnesium, niobium, copper, silicon and arsenic; polarographic and volumetric determination of iridium; reducing agent of heteropoly acid; reducing agent of copper and gold; testing phosphate, tungstate, nitrate, Nitrite, tellurium, etc.; developer; antioxidant; desulfurizer for fertilizer industry; urea synergist
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