| Identification | Back Directory | [Name]
LEAD TUNGSTATE | [CAS]
7759-01-5 | [Synonyms]
scheelite
naturalraspite
LEAD TUNGSTATE
naturalstolzite
LEAD(II) TUNGSTATE
LEAD TUNGSTEN OXIDE
LEAD TUNGSTATE, 99.9%
leadtungstate(iv)[qr]
leadtungstentetraoxide
leadtungstenoxide(pbwo4)
LEAD(II) TUNGSTATE 99.9%
Tungstic acid lead(II) salt
tungsticacid,lead(2+)salt(1:1) | [EINECS(EC#)]
231-849-7 | [Molecular Formula]
O4PbW | [MDL Number]
MFCD00016281 | [MOL File]
7759-01-5.mol | [Molecular Weight]
455.04 |
| Chemical Properties | Back Directory | [Melting point ]
400°C | [density ]
8.460 | [solubility ]
soluble in alkaline solutions | [form ]
yellow tetragonal crystals | [color ]
yellow tetragonal crystals, crystalline | [Water Solubility ]
insoluble H2O, cold HNO3; soluble in fixed alkali hydroxides [MER06] | [Solubility Product Constant (Ksp)]
pKsp: 6.35 | [EPA Substance Registry System]
Lead tungsten oxide (PbWO4) (7759-01-5) |
| Hazard Information | Back Directory | [Chemical Properties]
white powder(s); used as a pigment [HAW93] | [General Description]
White to pale yellow powdery solid. Sinks in water. | [Reactivity Profile]
LEAD TUNGSTATE has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive. | [Health Hazard]
INHALATION: Joint and muscle pains, headache, dizziness and insomnia. Weakness, frequently of extensor muscles of hand and wrist (unilateral or bilateral). Heavy contamination - Brain damage. Stupor progressing to coma - with or without convulsion, often death. Excitation, confusion, and mania less common. Cerebrospinal pressure may be increased. INGESTION: Abdominal pain, diarrhea, constipation, loss of appetite, muscular weakness, headache, blue line on gums, metallic taste, nausea and vomiting, joint and muscle pain. | [Definition]
scheelite: A mineral form of calciumtungstate, CaWO4, used as anore of tungsten. It occurs in contactmetamorphosed deposits and veindeposits as colourless or white tetragonalcrystals. |
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