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HomeProduct name listBISMUTH OXYCHLORIDE

BISMUTH OXYCHLORIDE

Synonym(s):Bismuth(III) chloride oxide;Bismuthyl(III) chloride;Chlorobismuth oxide

  • CAS NO.:7787-59-9
  • Empirical Formula: BiClO
  • Molecular Weight: 260.43
  • MDL number: MFCD00010895
  • EINECS: 232-122-7
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-24 21:11:45
BISMUTH OXYCHLORIDE Structural

What is BISMUTH OXYCHLORIDE?

Chemical properties

Bismuth 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 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.

Physical properties

White powder or tetragonal crystals; density 7.72 g/cm3; practically insoluble in water, alcohol and acetone; soluble in hydrochloric and nitric acids (with decomposition); Ksp 7.0 x 10-9.The layered structure gives rise to the pearlescent properties of this material.

The Uses of BISMUTH OXYCHLORIDE

bismuth 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.

The Uses of BISMUTH OXYCHLORIDE

In face powders; as pigment; manufacture of artificial pearls, dry-cell cathodes.

The Uses of BISMUTH OXYCHLORIDE

It is used as skin protective's, thickeners, and absorbent agents. It act as a coloring agents in cosmetics.

Preparation

Bismuth oxychloride is made by treating bismuth chloride with water and then drying the white precipitate so formed to expel a molecule of water:
BiCl3 + 2H2O → Bi(OH)2Cl + 2HCl

Bi(OH)2Cl BiOCl + H2O
Also, the compound is prepared by treating a dilute nitric acid solution of bismuth nitrate with sodium chloride.

General Description

Odorless white solid. Sinks in water.

Reactivity Profile

BISMUTH OXYCHLORIDE emits toxic fumes of chloride ion and bismuth when heated to decomposition [USCG, 1999].

Health Hazard

Contact with dust causes mild eye irritation and can cause skin rashes.

Flammability and Explosibility

Not classified

Structure

The structure of bismuth oxychloride can be thought of as consisting of layers of Cl?, Bi3+ and O2? ions. These ions are ordered as Cl–Bi–O–Bi–Cl–Cl–Bi–O–Bi–Cl, i.e., with alternating anions (Cl?, O2?) and cations (Bi3+). 

Properties of BISMUTH OXYCHLORIDE

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
Specific Gravity 7.72
color  Very pale brown
Odor at 100.00?%. odorless
Water Solubility  Soluble in HCl, HNO3. Insoluble in water, alcohol.
Merck  14,1263
Solubility Product Constant (Ksp) pKsp: 30.75
CAS DataBase Reference 7787-59-9(CAS DataBase Reference)
EPA Substance Registry System Bismuthine, chlorooxo- (7787-59-9)

Safety information for BISMUTH OXYCHLORIDE

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for BISMUTH OXYCHLORIDE

InChIKey GLQBXSIPUULYOG-UHFFFAOYSA-M

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