Lead(II) chromate
Lead(II) chromate is an inorganic compound with the chemical formula PbCrO4. It has a vivid yellow color and is generally insoluble. Two polymorphs of lead chromate are known, orthorhombic and the more stable monoclinic form. Monoclinic lead chromate is used in paints under the name chrome yellow, and many other names. It occurs also as the mineral crocoite.
| Names | |
|---|---|
| Other names
see text | |
| Identifiers | |
| ChEBI | |
| ECHA InfoCard | 100.028.951 |
| EC Number |
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PubChem CID |
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| RTECS number |
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| UNII | |
| UN number | 3288 |
CompTox Dashboard (EPA) |
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| Properties | |
| PbCrO4 | |
| Molar mass | 323.192 g/mol |
| Appearance | orange-yellow powder |
| Density | 6.12 g/cm3, solid |
| Melting point | 844 °C (1,551 °F; 1,117 K) |
| negligible | |
| Solubility | soluble in diluted nitric acid insoluble in acetic acid, ammonia |
Magnetic susceptibility (χ) |
−18.0·10−6 cm3/mol |
Refractive index (nD) |
2.31 |
| Structure | |
| monoclinic | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards |
Carcinogen and highly toxic |
| GHS labelling: | |
| Danger | |
| H350, H360, H373, H410 | |
| P201, P273, P308+P313, P501 | |
| NFPA 704 (fire diamond) |
3
0
0 |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
>12 g/kg (mouse, oral) |
| Safety data sheet (SDS) | ICSC 0003 Sigma-Aldrich |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
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