Lead monoxide
CAS Number 1317-36-8
Chemical Formula OPb
Molecular weight 223.1994
Appearance yellow powder
Lead monoxide, with the chemical name Lead(II) oxide (oxide of lead (II)), has the chemical formula PbO and a molecular weight of 223.20 g/mol. Its CAS number is 1317-36-8. Commonly known as litharge, massicot or yellow lead, it is the +2 valence oxide of lead.
Product Details
Lead(II) oxide also known as litharge (CAS 1317-36-8) is an industrial grade chemical with purity no less than 99%. It appears as a yellow to orange-yellow crystalline powder with no obvious odor. Its melting point is 888℃, boiling point is 1470℃ with decomposition during heating. Vapor pressure reaches 0.13Pa at 20℃, and relative density is 9.53 at 20℃. This substance is insoluble in water, soluble in acetic acid and nitric acid, and slightly soluble in alkaline solutions. It remains stable under normal conditions but is incompatible with strong reducing agents and concentrated acids.
Parameters
| Item | Value |
| Melting point | 886 °C(lit.) |
| Boiling point | 1470 °C |
| bulk density | 3500-3700kg/m3 |
| density | 9.53 |
| vapor pressure | 10 mm Hg ( 0 °C) |
| refractive index | 2.67 |
| storage temp. | Store below +30°C. |
| solubility | Soluble in concentrated alkali, HCl and ammonium chloride. Insoluble in dilute alkali and alcohol. |
| form | powder |
| color | yellow |
| Specific Gravity | 9.53 |
| PH | 8-9 (100g/l, H2O, 20℃)(slurry) |
| Water Solubility | Soluble in concentrated alkali, hydrochloric acid, and ammonium chloride. Insoluble in water, dilute alkali and alcohol. |
| Crystal Structure | Rutile type |
| Hydrolytic Sensitivity | 4: no reaction with water under neutral conditions |
| crystal system | square |
| Merck | 14,5413 |
| Space group | P42/mnm |
| Lattice constant | a/nmb/nmc/nmα/oβ/oγ/oV/nm30.49550.49550.33839090900.0831 |
| Exposure limits | ACGIH: TWA 0.05 mg/m3 NIOSH: IDLH 100 mg/m3; TWA 0.050 mg/m3 |
| Stability: | Stable. Reacts violently with hydrogen peroxide, strong oxidizing agents, aluminium, zirconium, halogens, sulphur trioxide, boron, silicon, sodium, zinc. |
| CAS DataBase Reference | 1317-36-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Lead monoxide(1317-36-8) |
| EPA Substance Registry System | Lead monoxide (1317-36-8) |
Safety Information
| Item | Value |
| Hazard Codes | T,N |
| Risk Statements | 61-20/22-33-50/53-62 |
| Safety Statements | 53-45-60-61 |
| RIDADR | UN 2291 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | OG1750000 |
| TSCA | Yes |
| HS Code | 2824 10 00 |
| HazardClass | 6.1(b) |
| PackingGroup | III |
| Hazardous Substances Data | 1317-36-8(Hazardous Substances Data) |
| Toxicity | LD50 i.p. in rats: 40 mg Pb/100g (Bradley, Fredrick) |
Product Application of Lead monoxide CAS#1317-36-8
It is widely used in ointments and plasters, and for preparing lead subacetate solutions. It serves as a glazing agent for pottery, a flux for porcelain and glass painting, and a raw material for lead glass production. It is applied in varnishes, and used with glycerol to make metal cement. It can create iridescent colors on brass and bronze surfaces, and dye sulfur-containing materials such as hair, nails, wool and horn. It is used in manufacturing artificial tortoise shell and horn, as a rubber pigment, and in producing boiled linseed oil. Additionally, it is used in the assaying of gold and silver ores.
Factory and Logistics Information
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