Reasonable price Sorbitan Laurate - Hydroquinone with CAS 123-31-9 – Unilong
Reasonable price Sorbitan Laurate - 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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Our company insists all along the quality policy of "product quality is base of enterprise survival; customer satisfaction is the staring point and ending of an enterprise; persistent improvement is eternal pursuit of staff" and the consistent purpose of "reputation first, customer first" for Reasonable price Sorbitan Laurate - Hydroquinone with CAS 123-31-9 – Unilong , The product will supply to all over the world, such as: Switzerland, Mombasa, Somalia, Our company's main items are widely used all over the world; 80% of our products and solutions exported to the United States, Japan, Europe and other markets. All stuff sincerely welcome guests come to visit our factory.
By Miguel from Cairo - 2018.06.21 17:11
The quality of the products is very good, especially in the details, can be seen that the company work actively to satisfy customer's interest, a nice supplier.
By Alberta from Florida - 2017.10.13 10:47
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