Crude Grade 96%
Item | Specifications |
Appearance | Orange yellow Powder |
Melting point | 194-197 ℃ |
Purity (HPLC) | ≥96% |
Moisture content (%) | ≤1% |
Toluene insoluble matter (%) | ≤3.5% |
PH | 3-5 |
Fine Grade 99%
Item | Specifications |
Appearance | Bright orange |
Moisture | ≤0.10% |
Melting point | ≥198°C |
Toluene intolerance | ≤0.3% |
Content | ≥99% |
PH | 5-7 |
1,4-Dihydroxyanthraquinone, commonly known as quinizarin, is an important dye intermediate. It can be used for the production of disperse dyes, solvent dyes, acid dyes and vat dyes. Important raw materials
25kg/drum,8 tons/1*20 ft Container FCL
or 25kg/bag,12 tons/1*20 ft Container FCL
It should be sealed and shaded to be stored in a dry, cool, well ventilated place.
Those that precipitate from acetic acid are orange crystals. It is red when dissolved in ethanol in a proper amount, brown and yellow fluorescence when dissolved in ether, and purple when dissolved in caustic lye and ammonia.