Best quality 99.5% Natural Organic Skin Whitening Hydroquinon Powder CAS 123-31 9 1, 4-Benzenediol
Our eternal pursuits are the attitude of “regard the market, regard the custom, regard the science” as well as theory of “quality the basic, have faith in the initial and administration the advanced” for Best quality 99.5% Natural Organic Skin Whitening Hydroquinon Powder CAS 123-31 9 1, 4-Benzenediol, In case you are interested in almost any of our objects, make sure you never wait to call us and go ahead and take initial step to construct up a successful business romance.
Our eternal pursuits are the attitude of “regard the market, regard the custom, regard the science” as well as theory of “quality the basic, have faith in the initial and administration the advanced” for China 1 4-Benzenediol and CAS 123-31 9, They’re durable modeling and promoting well all over the world. Under no circumstances disappearing key functions in a brief time, it’s a should really to suit your needs personally of fantastic quality. Guided by the principle of Prudence, Efficiency, Union and Innovation. the business make an awesome efforts to expand its international trade, raise its enterprise. rofit and improve its export scale. We are confident that we’ll have a vibrant prospect and to be distributed all over the world in the years to come.
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. Store below +30°C.
solubility H2O: 50 mg/mL, clear
form Needle-Like Crystals or Crystalline Powder
pka 10.35(at 20℃)
color White to off-white
Water Solubility 70 g/L (20 ºC)
Sensitive Air & Light Sensitive
Merck 14,4808
BRN 605970
Product Name | Hydroquinone | Batch No. | JL20211025 |
Cas | 123-31-9 | MF Date | OCT.25,2021 |
Packing | 25KGS/BAG | Analysis Date | OCT.25,2021 |
Quantity | 5MT | Expiry Date | OCT.24,2023 |
Item | Standard | Result | |
Appearance | White crystalline powder | Conforms | |
Assay % | 99-101 | 99.9 | |
Melting point | 171-175 | 171.9-172.8 | |
Residue after ignition % | ≤0.05 | 0.02 | |
Fe % | ≤0.002 | <0.002 | |
Pb % | ≤0.002 | <0.002 | |
Conclusion | Conforms |
Hydroquinone is a pigment-lightening agent used in bleaching creams. Hydroquinone combines with oxygen very rapidly and becomes brown when exposed to air. Although it occurs naturally, the synthetic version is the one commonly used in cosmetics. Application to the skin may cause allergic reaction and increase skin sun sensitivity. Hydroquinone is potentially carcinogenic and is associated with causing ochronosis, a discoloration of the skin. The u.S. FDA has banned hydroquinone from oTC cosmetic formulations, but allows 4 percent in prescription products.
1,4-dihydroxybenzene, also known as hydroquinone, is an important chemical raw material. Its appearance is white acicular crystal. 1,4-dihydroxybenzene is widely used as an important raw material, intermediate and auxiliary agent for medicine, pesticides, dyes and rubber. It is mainly used as developer, anthraquinone dye, azo dye, rubber antioxidant and monomer polymerization inhibitor, food stabilizer and coating antioxidant, petroleum anticoagulant, synthetic ammonia catalyst, etc. It can also be used as analytical reagent, reducing agent and developer of copper and gold.
25kg/drum.
Our eternal pursuits are the attitude of “regard the market, regard the custom, regard the science” as well as theory of “quality the basic, have faith in the initial and administration the advanced” for Best quality 99.5% Natural Organic Skin Whitening Hydroquinon Powder CAS 123-31 9 1, 4-Benzenediol, In case you are interested in almost any of our objects, make sure you never wait to call us and go ahead and take initial step to construct up a successful business romance.
Best quality China 1 4-Benzenediol and CAS 123-31 9, They’re durable modeling and promoting well all over the world. Under no circumstances disappearing key functions in a brief time, it’s a should really to suit your needs personally of fantastic quality. Guided by the principle of Prudence, Efficiency, Union and Innovation. the business make an awesome efforts to expand its international trade, raise its enterprise. rofit and improve its export scale. We are confident that we’ll have a vibrant prospect and to be distributed all over the world in the years to come.