ChemicalBook > Product Catalog > Inorganic chemistry > Oxides and peroxides > Metal oxide > BISMUTH OXYCHLORIDE
BISMUTH OXYCHLORIDE Chemical Properties
- Melting point:melts at low red heat [MER06]
- Density 7.72 g/mL at 25 °C(lit.)
- refractive index 2.15
- solubility H2O: insoluble(lit.)
- form Powder
- color Very pale brown
- Specific Gravity7.72
- Water Solubility Soluble in HCl, HNO3. Insoluble in water, alcohol.
- Merck 14,1263
- Solubility Product Constant (Ksp)pKsp: 30.75
- CAS DataBase Reference7787-59-9(CAS DataBase Reference)
- EPA Substance Registry SystemBismuthine, chlorooxo- (7787-59-9)
BISMUTH OXYCHLORIDE Usage And Synthesis
- Chemical PropertiesBismuth oxychloride is a white Lustorus powder, It is an inorganic white pigment commonly used in foundations, blushes and other color cosmetics. Bismuth oxychloride usually comes in two forms: diamond and pearl finishes. The diamond is shimmery and the pearl is more matte.
Bismuth is the least toxic of its periodic table neighbors like lead, tin, antimony and polonium. Bismuth in itself is not safe for use in cosmetics, and must be refined and combined with other elements to produce bismuth oxychloride.
Bismuth occurs naturally, but in very small amounts. Most of the bismuth produced in the USA is as a by-product from refining lead, tin, copper, silver and gold ores.
Once the bismuth has been harvested, it is further refined through several processes to remove dangerous elements like lead. Then it is chlorinated, which gives us bismuth chloride (BiCl3). It still poses a severe risk at this point, smelling of hydrochloric acid. When bismuth chloride is combined with water, it starts to decompose and part of the chlorine is replaced by oxygen from the water. This process is called hydrolysis. The remaining compound is bismuth, chlorine and oxygen = Bismuth oxychloride.
- UsesIn face powders; as pigment; manufacture of artificial pearls, dry-cell cathodes.
- Usesbismuth oxychloride is an inorganic color additive. It is used mostly in makeup manufacturing and rarely in skin care formulations. It may also be used for pearlization in cosmetics.
- General DescriptionOdorless white solid. Sinks in water.
- Reactivity ProfileBISMUTH OXYCHLORIDE emits toxic fumes of chloride ion and bismuth when heated to decomposition [USCG, 1999].
- Health HazardContact with dust causes mild eye irritation and can cause skin rashes.
- Silver sulfate Ferrous chloride Antimony trichloride Stannous chloride dihydrate Pearlescing additive ANTIMONY (IV) OXIDE Sodium tungstate dihydrate CERIUM(III) CHLORIDE Bismuth BISMUTH OXYCHLORIDE Bismuth trichloride Bismuth trioxide BISMUTH OXYCHLORIDE(1) Pearlylustre slurry of bismuth oxychloride
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