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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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To meet the customers' over-expected gratification , we have our robust crew to offer our best over-all support which includes marketing, income, coming up with, production, excellent managing, packing, warehousing and logistics for New Arrival China Cobalt Gluconate - Hydroquinone with CAS 123-31-9 – Unilong , The product will supply to all over the world, such as: Pakistan, India, Kyrgyzstan, Our staffs are rich in experience and trained strictly, with qualified knowledge, with energy and always respect their customers as the No. 1, and promise to do their best to deliver the effective and individual service for customers. The Company pays attention to maintaining and developing the long-term cooperation relationship with the customers. We promise, as your ideal partner, we'll develop a bright future and enjoy the satisfying fruit together with you, with persisting zeal, endless energy and forward spirit.
  • The customer service reprersentative explained very detailed, service attitude is very good, reply is very timely and comprehensive, a happy communication! We hope to have a opportunity to cooperate.
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    In China, we have many partners, this company is the most satisfying to us, reliable quality and good credit, it is worth appreciation.
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