Chemistry:Strontium chromate
From HandWiki
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Other names
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
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PubChem CID
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| RTECS number |
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| UNII | |
| UN number | 3288 |
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| Properties | |
| SrCrO 4 | |
| Molar mass | 203.61 g·mol−1 |
| Appearance | yellow powder |
| Density | 3.895 g/cm3[1] |
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| Solubility | Soluble in dilute acids and ammonia |
| −5.1×10−6 cm3/mol | |
| Structure[2] | |
| monoclinic | |
| P21/c | |
| 2/m | |
a = 7.504 Å, b = 6.842 Å, c = 8.729 Å α = 53.477°, β = 90°, γ = 90°
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Lattice volume (V)
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360.142 Å3 |
Formula units (Z)
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4 |
| Hazards | |
| GHS pictograms |   
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| GHS Signal word | Danger |
| H330, H302, H361, H317, H341, H350, H335, H410 | |
| P201, P202, P260, P264, P270, P271, P272, P273, P280, P284, P301+312+330Script error: No such module "Preview warning".Category:GHS errors, P302+352, P304+340+310, P308+313, P333+313, P362+364Script error: No such module "Preview warning".Category:GHS errors, P391, P403+233, P405, P501 | |
| NFPA 704 (fire diamond) | |
Threshold limit value (TLV)
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0.0002 mg/m3 (TWA), 0.0005 mg/m3 (Skin)[1] (STEL) |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
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811 mg/kg (rat, oral)[1] |
LC50 (median concentration)
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0.27–0.51 mg/L (Rat, 4h)[1] |
| NIOSH (US health exposure limits):[1] | |
PEL (Permissible)
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0.1 mg/m3 |
REL (Recommended)
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0.0002 mg/m3 (TWA) |
IDLH (Immediate danger)
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15 mg/m3 |
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Other cations
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Strontium chromate is an inorganic compound with the formula SrCrO
4.
Preparation
Strontium chromate is prepared from strontium chloride and sodium chromate, or from strontium carbonate and sodium dichromate.[citation needed]
Uses
- Corrosion inhibitor in pigments.
- In electrochemical processes to control sulfate concentration of solutions.
- Colorant in polyvinyl chloride resins.
- Pyrotechnics.[4]
- Aluminium flake coatings.
- As an anti-corrosive primer for zinc, magnesium, aluminium, and alloys used in aircraft manufacture.
- As a pigment used in oil painting named strontium yellow.[4]
Health hazards
Strontium chromate is a toxic and carcinogenic compound, primarily due to its hexavalent chromium (Cr6+) content. It is classified as a Group 1 carcinogen by the International Agency for Research on Cancer (IARC) which indicates that it is considered to be proven to cause cancer in humans, particularly lung cancer.[5][6]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "SDS - Strontium chromate". ThermoFisher Scientific. 24 December 2025. pp. 3-5. https://documents.thermofisher.com/DirectWebViewer/private/document.aspx?prd=ALFAA89026~~PDF~~MTR~~AGHS~~EN~~2025-12-24%2019:03:05~~Strontium%20chromate~~.
- ↑ "Materials Project - SrCrO4". Materials Project. https://legacy.materialsproject.org/materials/mp-510607/.
- ↑ "TCI - Strontium chromate". Tokyo Chemical Industry Co.. https://www.tcichemicals.com/JP/en/p/T4156.
- ↑ 4.0 4.1 "Strontium yellow". Museum of Fine Arts, Boston. 2022-06-06. https://cameo.mfa.org/wiki/Strontium_yellow.
- ↑ "Strontium chromate - Hazardous Agents | Haz-Map". https://haz-map.com/Agents/41.
- ↑ "Strontium - Regulations and Advisories". US Center for Disease Control - Agency for Toxic Substances and Disease Registry. p. 257. https://www.atsdr.cdc.gov/toxprofiles/tp159-c8.pdf.
Template:Chromates and dichromates
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