OEM Customized Acid Violet 43 - Hydroquinone with CAS 123-31-9 – Unilong
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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Persisting in "High quality, Prompt Delivery, Competitive Price", we have established long-term cooperation with clients from both overseas and domestically and get new and old clients' high comments for OEM Customized Acid Violet 43 - Hydroquinone with CAS 123-31-9 – Unilong , The product will supply to all over the world, such as: Mauritius, Mauritania, Kazakhstan, We aim to become the modern enterprise with the commercial ideal of "Sincerity and confidence" and with the aim of "Offering customers the most sincere services and best quality products". We sincerely ask for your unchanged support and appreciate your kind advice and guidance.
By Daniel Coppin from Riyadh - 2018.09.12 17:18
The company can keep up with the changes in this industry market, product updates fast and the price is cheap, this is our second cooperation, it's good.
By Renee from Australia - 2018.02.08 16:45
