PRODUCT Properties
| Melting point: | decomposes [KIR78] |
| Density | 3.895 |
| solubility | soluble in dilute acid solutions |
| form | Powder |
| color | yellow monoclinic crystals, crystalline |
| Specific Gravity | 3.895 |
| Water Solubility | Soluble in boiling water, dilute HCl, dilute CH{3}CO{2}H |
| Merck | 14,8841 |
| Solubility Product Constant (Ksp) | pKsp: 4.65 |
| Exposure limits | ACGIH: TWA 0.0002 mg/m3; STEL 0.0005 mg/m3 (Skin) OSHA: Ceiling 0.1 mg/m3 NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3 |
| Stability: | Stability |
| CAS DataBase Reference | 7789-06-2(CAS DataBase Reference) |
| EPA Substance Registry System | Strontium chromate (7789-06-2) |
Description and Uses
Strontium chromate is mainly used to prevent corrosion on aluminum, and primers containing this pigment are standard for the aviation industry. Strontium chromate is so effective at low loadings that it is often used to provide inhibition for coil coatings despite the fact that it is the most expensive chromate inhibitor. The pigment is sometimes combined with zinc chromate in water-based formulations. In these cases, to avoid stability problems, loadings are kept at low levels, about 2% total chromate.
Corrosion inhibitor in pigments; in electrochemical processes to control sulfate concentration of solutions.
Safety
| Symbol(GHS) |    GHS03,GHS08,GHS09 |
| Hazard statements | H272-H303-H350-H400-H410 |
| Precautionary statements | P201-P210a-P220-P221-P405-P501a |
| Hazard Codes | T,N |
| Risk Statements | 45-22-50/53 |
| Safety Statements | 53-45-60-61 |
| RIDADR | UN3087 |
| TSCA | Yes |
| HazardClass | 5.1 |
| PackingGroup | III |
| Hazardous Substances Data | 7789-06-2(Hazardous Substances Data) |
