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| Catalog Number | CI-SC-0057 |
| Product Name | Bismuth Oxychloride |
| CAS | 7787-59-9 |
| Structure |  |
| Synonyms | Chlorobismuth oxide |
| Description | Very fine crystallized pigment composed of bismuth and a salt. Bismuth can be found naturally in the rare mineral bismoclite but is nowadays produced from other metals |
| Molecular Weight | 261.44 g/mol |
| Molecular Formula | BiClO |
| Canonical SMILES | O=[Bi].Cl |
| InChI | InChI=1S/Bi.ClH.O/h;1H; |
| InChI Key | BWOROQSFKKODDR-UHFFFAOYSA-N |
| Boiling Point | 1564°C |
| Melting Point | 271.3 °C |
| Purity | 99%+ |
| Density | 7.72 g/mL at 25 °C (lit.) |
| Solubility | Insoluble, but miscible in water & oils |
| Appearance | Fine off-white crystalline powder, no odor |
| Application | Main ingredient for mineral makeup products including face powders, foundations, lipsticks, eye shadows, mascara, and more. |
| Storage | Store in a closed container at a dry place at room temperature |
| Composition | Bismuth oxychloride |
| Features And Benefits | Pearlescent pigment providing excellent semi-transparent mild lusterGood filling properties providing smooth texture |
| GMO | GMO-free (does not contain plant-derived components) |
| HS Code | 3003100000 |
| INCI | Bismuth oxychloride |
| Manufacture | Bismuth oxychloride is produced from bismuth that has been extracted from lead, tin, or copper, and then purified in a multi-step process. Purified bismuth is then chlorinated and treated with water to create the pigment bismuth oxychloride. |
| Preservation | Preservative-free |
| Purity Grade | No purity grade applicable |
| Raw Material Source | Bismuth |
| Refractive Index | 2.15 |
| Topological Polar Surface Area | 17.1 Ų |
| Uses | Can be tinted with other pigments to create different shades. For external use only. |
What is bismuth oxychloride and what is it used for in cosmetics?
Bismuth oxychloride is a synthetic pearl powder and it is used as an ingredient in powders, particularly in mineral makeup. It has a shimmery appearance and adheres well to the skin.
How is bismuth oxychloride manufactured?
Bismuth oxychloride is manufactured by combining bismuth, a by-product of lead and copper metal refining, with chloride and water.
Is bismuth oxychloride a natural ingredient?
No, bismuth oxychloride is not a natural ingredient. It is manufactured through a chemical process and does not occur naturally in large quantities.
What is the difference between talc and bismuth oxychloride?
Talc is considered to be a more natural and unadulterated ingredient compared to bismuth oxychloride. Talc is lighter in weight and does not have the same pearlescent appearance.
How does bismuth oxychloride affect the skin?
Some people may react to bismuth oxychloride due to its unique crystal structure. The crystals can irritate the skin and get stuck in the pores, potentially causing irritation.
Is bismuth oxychloride toxic?
Bismuth oxychloride is less toxic than its chemical counterparts, but it can still cause irritation and reactions in some individuals.
How is bismuth oxychloride refined and purified for cosmetic use?
Bismuth oxychloride goes through several refining processes, including electrolysis with lead fluorosilicate and fluorosilicic acid, treatment with molten caustic zinc, chlorination, and treatment with water and nitric acid.
Why is bismuth oxychloride used in mineral makeup?
Bismuth oxychloride is used in mineral makeup because of its pearlescent and shimmery appearance. It enhances the glow and adhesion properties of the makeup.
Why do some women have intense reactions to bismuth oxychloride in cosmetics?
The intense reactions to bismuth oxychloride may be due to a buildup of the ingredient in the pores over time, as well as its unique crystal structure that can irritate the skin.
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