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New Arrival China Cobalt Gluconate - Hydroquinone with CAS 123-31-9 – Unilong


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New Arrival China Cobalt Gluconate - 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 1.6320

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.


Product detail pictures:

New Arrival China Cobalt Gluconate - Hydroquinone with CAS 123-31-9 – Unilong detail pictures

New Arrival China Cobalt Gluconate - Hydroquinone with CAS 123-31-9 – Unilong detail pictures

New Arrival China Cobalt Gluconate - Hydroquinone with CAS 123-31-9 – Unilong detail pictures

New Arrival China Cobalt Gluconate - Hydroquinone with CAS 123-31-9 – Unilong detail pictures

New Arrival China Cobalt Gluconate - Hydroquinone with CAS 123-31-9 – Unilong detail pictures

New Arrival China Cobalt Gluconate - Hydroquinone with CAS 123-31-9 – Unilong detail pictures


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We're commitment to offer you the aggressive cost ,superb products and solutions top quality, too as fast delivery for New Arrival China Cobalt Gluconate - Hydroquinone with CAS 123-31-9 – Unilong , The product will supply to all over the world, such as: Thailand, Zambia, Naples, Our product quality is one of the major concerns and has been produced to meet the customer's standards. "Customer services and relationship" is another important area which we understand good communication and relationships with our customers is the most significant power to run it as a long term business.
  • In general, we are satisfied with all aspects, cheap, high-quality, fast delivery and good procuct style, we will have follow-up cooperation!
    5 Stars By Ada from Libya - 2018.12.11 14:13
    We always believe that the details decides the company's product quality, in this respect, the company conform our requirements and the goods are meet our expectations.
    5 Stars By Elsa from Rome - 2018.11.04 10:32
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