OEM Customized Acid Violet 43 - Hydroquinone with CAS 123-31-9 – Unilong

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OEM Customized Acid Violet 43 - Hydroquinone with CAS 123-31-9 – Unilong Detail:

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	1.632
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.

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"Sincerity, Innovation, Rigorousness, and Efficiency" is the persistent conception of our firm for the long-term to create jointly with consumers for mutual reciprocity and mutual reward for OEM Customized Acid Violet 43 - Hydroquinone with CAS 123-31-9 – Unilong , The product will supply to all over the world, such as: Nepal, French, Montpellier, We have gained a lot of recognition among customers spread all across the world. They trust us and always give repetitive orders. Furthermore, mentioned below are some of the major factors that have played significant role in our tremendous growth in this domain.

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