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| CAS No.: | 12709-98-7 | |
|---|---|---|
| Name: | LEADMOLYBDENUMCHROMATE | |
| Molecular Structure: | ||
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| Formula: | Cr2Mo2O11Pb2 | |
| Molecular Weight: | 0 | |
| Synonyms: | LEADMOLYBDENUMCHROMATE | |
| Density: | g/cm3 | |
| Boiling Point: | °Cat760mmHg | |
| Flash Point: | °C | |
| Hazard Symbols: |
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| Safety: | Questionable carcinogen with experimental neoplastigenic and tumorigenic data. Human mutation data reported. A powerful oxidizer. Probably a severe eye, skin, and mucous membrane irritant. When heated to decomposition it emits toxic fumes of Pb, chromium trioxide, and Mo. See also LEAD COMPOUNDS, MOLYBDENUM COMPOUNDS, and CHROMIUM COMPOUNDS. | |
Analytical Methods: | For occupational chemical analysis use NIOSH: Chromium Hexavalent, 7024. |
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| PSA: | 0.00000 | |
| LogP: | 0.00000 | |
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Chemistry
Product Name: Lead-molybdenum chromate
CAS Registry Number: 12709-98-7
IUPAC Name: chromium(3+) ; lead(2+) ; molybdenum ; oxygen(2-)
Molecular Weight: 886.2656 [g/mol]
Molecular Formula: Cr2Mo2O11Pb2
H-Bond Donor: 0
H-Bond Acceptor: 11
Canonical SMILES: [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Cr+3].[Cr+3].[Mo].[Mo].[Pb+2].[Pb+2]
InChI: InChI=1S/2Cr.2Mo.11O.2Pb/q2*+3;;;11*-2;2*+2
InChIKey: UJSWIHIDDYYLJD-UHFFFAOYSA-N
Following is the molecular structure of Lead-molybdenum chromate (CAS NO.12709-98-7) is:
Toxicity Data With Reference
| 1. | mmo-sat 2 mg/plate | CRNGDP Carcinogenesis. 2 (1981),283. | ||
| 2. | oms-hmn:oth 500 mg/L | BJCAAI British Journal of Cancer. 44 (1981),219. | ||
| 3. | cyt-hmn:oth 500 mg/L | BJCAAI British Journal of Cancer. 44 (1981),219. | ||
| 4. | dni-ham:kdy 150 mg/L | BJCAAI British Journal of Cancer. 44 (1981),219. | ||
| 5. | oms-ham:kdy 150 mg/L | BJCAAI British Journal of Cancer. 44 (1981),219. | ||
| 6. | cyt-ham:ovr 5 mg/L | BJCAAI British Journal of Cancer. 44 (1981),219. | ||
| 7. | sce-ham:ovr 100 µg/L | MUREAV Mutation Research. 156 (1985),219. |
Consensus Reports
Lead and its compounds, as well as chromium and its compounds, are on the Community Right-To-Know List.
Safety Profile
Questionable carcinogen with experimental neoplastigenic and tumorigenic data. Human mutation data reported. A powerful oxidizer. Probably a severe eye, skin, and mucous membrane irritant. When heated to decomposition it emits toxic fumes of Pb, chromium trioxide, and Mo. See also LEAD COMPOUNDS, MOLYBDENUM COMPOUNDS, and CHROMIUM COMPOUNDS.
Standards and Recommendations
OSHA PEL: TWA CL 0.1 mg(CrO3)/m3; TWA 0.05 mg(Pb)/m3; TWA 5 mg(Mo)/m3
ACGIH TLV: TWA 0.05 mg(Cr)/m3; TWA Soluble Compounds: TWA 0.5 mg(Mo)/m3 Confirmed Animal Carcinogen with Unknown Relevance to Humans; TWA 0.15 mg(Pb)/m3
NIOSH REL: (Chromium(VI)) TWA 0.001 mg(Cr(VI))/m3; (Inorganic Lead) TWA 0.10 mg(Pb)/m3
Analytical Methods
For occupational chemical analysis use NIOSH: Chromium Hexavalent, 7024.
Specification
Lead-molybdenum chromate , its cas register number is 12709-98-7. It also can be called Chromic acid lead salt with lead molybdate ; Chromic acid, lead and molybdenum salt ; Lead chromate molybdate ; Lead molybdate chromate ; Lead molybdenum chromate ; Molybdenum-lead chromate ; Chromium lead molybdenum oxide .