Substance profile
Lead Chromate
Lead Chromate is a yellow or orange-yellow powder and is odorless.
01 · Identification
What Lead Chromate is
Lead Chromate is a yellow or orange-yellow powder and is odorless. It boils at 250 °C, melts at 844 °C.
Under the GHS it carries the signal word Danger. It is classed as carcinogens.
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H350 | May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H360Df | May damage the unborn child. Suspected of damaging fertility. |
| H373 | May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P201, P260, P270, P273, P280, P308, P313, P314, P391, P501
03 · Physical and chemical properties
Lead Chromate properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 250 °C (482 °F) | decomposes | OSHA |
| Decomposes | decomposes | HSDB | |
| Decomposes (NTP, 1992) | decomposes | CAMEO | |
| Melting point | 844 °C (1551.2 °F) | HSDB | |
| 843.89 °C (1551 °F) | CAMEO | ||
| Density | 6.12 g/cm³ | HSDB | |
| 6.3 g/cm³ | ICSC | ||
| 6.12 g/cm³ | at 25 °C | DOE PAC | |
| Solubility | In water, 0.2 mg/L | HSDB | |
| In water, 0.17 mg/L at 20 °C | at 20 °C | HSDB | |
| In water, 0.058 mg/L at 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 0 mmHg | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Lead Chromate
Storage conditions
Keep container tightly closed in a dry and well-ventilated place. Keep in a dry place. Storage class (TRGS 510): Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Incompatible materials: Organic materials, powdered metals
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
LEAD CHROMATE reacts violently with ferric ferrocyanide (NTP, 1992). The mixture of sulfur and the chromate is pyrophoric, as is the case of tantalum and the chromate. Under certain conditions, combinations of dry mixtures of lead chromate pigment and azo-dyes (nitrobenzeneazo derivatives) may lead to explosions. When these materials are intimately mixed, violent reactions may result [Loss Prev. Bull., 1978, (022), 117].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Lead Chromate in the storage compatibility matrix →