A5268912
Lead chromate , AR,98.0% , 7758-97-6
CAS NO.：7758-97-6
Empirical Formula: CrO4Pb
Molecular Weight: 323.19
MDL number: MFCD00011158
EINECS: 231-846-0
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 844°C |
| Density | 6,3 g/cm3 |
| solubility | soluble in alkaline solutions, dilute acid solutions |
| color | Yellow |
| Water Solubility | Insoluble. <0.1 g/100 mL at 19 ºC |
| Merck | 14,5405 |
| Exposure limits | ACGIH: TWA 0.0002 mg/m3; TWA 0.05 mg/m3; STEL 0.0005 mg/m3 OSHA: Ceiling 0.1 mg/m3 NIOSH: IDLH 100 mg/m3; IDLH 15 mg/m3; TWA 0.0002 mg/m3; TWA 0.050 mg/m3 |
| Stability: | Stable. Reacts violently with ferric ferrocyanide. |
Description and Uses
Lead chromate is an orange or orange-yellowcrystalline solid or powder. Molecular weight = 323.19;546.38 (lead chromate oxide); Boiling point = (decom-poses);Freezing/Melting point = 844℃. HazardIdentification (based on NFPA-704 M Rating System):Health 3, Flammability 0, Reactivity 0. Insoluble in water.
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.
Safety
| Symbol(GHS) |   GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H350-H360Df-H373-H410-H360-H400 |
| Precautionary statements | P201-P260-P280-P308+P313-P405-P501a |
| Hazard Codes | T,N |
| Risk Statements | 61-33-40-50/53-62-45 |
| Safety Statements | 53-45-60-61 |
| RIDADR | UN 3077 9/PG 3 |
| WGK Germany | 3 |
| RTECS | GB2975000 |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | III |
