Lead chromate

Base Information

• Chemical Name: Lead chromate
• CAS No.: 7758-97-6
• Deprecated CAS: 8049-64-7,181768-98-9,2244671-11-0
• Molecular Formula: PbCrO4
• Molecular Weight: 323.19
• European Community (EC) Number: 231-846-0
• ICSC Number: 0003
• UN Number: 3085,2291,3288
• UNII: AA3229AOUS
• DSSTox Substance ID: DTXSID1064792
• Wikipedia: Lead(II)_chromate,Lead chromate,Phoenicochroite
• Wikidata: Q367871
• NCI Thesaurus Code: C45891
• Mol file: 7758-97-6.mol

Synonyms:lead chromate;lead chromate yellow;lead chromate, Pb(2+) (1:1)

Chemical Property of Lead chromate

Chemical Property:

• Appearance/Colour: yellow to orange powder
• Melting Point: 844 °C
• PSA: 80.26000
• Density: 6.3 g/cm³
• LogP: -0.85600
• Water Solubility.: Insoluble.
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 0
• Exact Mass: 323.89682
• Heavy Atom Count: 6
• Complexity: 62.2
• Transport DOT Label: Oxidizer Corrosive

Purity/Quality:

99% ^*data from raw suppliers

Lead(II) chromate ^*data from reagent suppliers

Safty Information:

• Pictogram(s): T, N
• Hazard Codes: T,N
• Statements: 61-33-40-50/53-62-45
• Safety Statements: 53-45-60-61

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Lead Compounds, Inorganic
• Canonical SMILES: [O-][Cr](=O)(=O)[O-].[Pb+2]
• Inhalation Risk: Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered.
• Effects of Short Term Exposure: The substance is irritating to the respiratory tract.
• Effects of Long Term Exposure: The substance may have effects on the blood, bone marrow, central nervous system, peripheral nervous system, kidneys and lungs. This may result in anaemia, peripheral nerve disease, abdominal cramps and kidney impairment. This substance is carcinogenic to humans. May cause toxicity to human reproduction or development.
• Physical Properties: Yellow monoclinic crystals; refractive index 2.31; density 6.12 g/cm3; melts at 844°C; decomposes on further heating; insoluble in water; also insoluble in ammonia and acetic acid; soluble in acids and alkalies. Lead chromate? is used in the production of commercial lead chromate pigments, such as Primrose Chrome Yellow, Light Chrome Yellow and Medium Chrome Yellow, containing 65-89% lead chromate (IARC 1990). Lead chromate(VI) is also used in the preparation of green pigments such as chrome green or green cinnabar, in which it is mixed with Prussian blue (qq.v.). It is also listed by the Colour Index as a component of Pigment Green 15.
• Uses: It is used in chemical analysis of organic substances. pigment for paints and inks; in oil and water colors; printing fabrics, decorating china and porcelain; in chemical analysis of organic substances; in traffic paints. Lead chromate (PbCrO4) is found in nature as yellow crystals in the mineral crocoite. It can be produced by reacting lead chloride and sodium dichromate. It is a popular and safe yellow pigment. Lead chromate, “chrome yellow” PbCrO4, yellow precipitate, by reaction of soluble lead salt solution and sodium dichromate or chromate solution.Used as a pigment; basic lead chromate, red solid, insoluble, formed by heating lead chromate and sodium hydroxide solution.