Red lead
Lead(II,IV) oxide
CAS: 1314-41-6
Molecular Formula: O4Pb3
Red lead - Names and Identifiers
| Name | Lead(II,IV) oxide |
| Synonyms | MINIUM Red lead RED LEAD C.I. 77578 Lead Oxide Red Lead tetroxide RED LEAD OXIDE Read lead oxide LEAD(+2,+4)OXIDE Trilead tetroxide lead red granular Lead(II,IV) oxide LEAD(II,III) OXIDE granulated lead red C.I. Pigment Red 105 red lead oxide powder LEAD(II,III) OXIDE, RED granulated lead tetroxide |
| CAS | 1314-41-6 |
| EINECS | 215-235-6 |
| InChI | InChI=1/4O.3Pb/rO4Pb3/c1-5-2-7-3-6(1)4-7 |
| InChIKey | XMFOQHDPRMAJNU-UHFFFAOYSA-N |
Red lead - Physico-chemical Properties
| Molecular Formula | O4Pb3 |
| Molar Mass | 685.6 |
| Density | 9,1 g/cm3 |
| Melting Point | 500 °C |
| Boling Point | 800°C |
| Water Solubility | Soluble in hydrochloric acid, glacial acetic acid and nitric acid and hydrogen peroxide. Insoluble in water and alcohol. |
| Vapor Presure | 10 mm Hg ( 0 °C) |
| Appearance | red powder |
| Color | Orange |
| Exposure Limit | ACGIH: TWA 0.05 mg/m3NIOSH: IDLH 100 mg/m3; TWA 0.050 mg/m3 |
| Merck | 14,5425 |
| Stability | Stable. May react vigorously with reducing agents. |
| Physical and Chemical Properties | Orange crystalline scaly or amorphous heavy powder. orange crystalline scale or amorphous powder. A mixture of lead monoxide and lead dioxide. The relative density was 9.1. Insoluble in water and alcohol, soluble in nitric acid (in the presence of hydrogen peroxide), glacial acetic acid, hot hydrochloric acid and hot lye. It has high anti-corrosion and anti-rust performance and high heat resistance, but is not acid resistant. In the oil diffusion, strong hiding power. It belongs to alkaline pigment, which can form lead soap with free fatty acid in paint base, and has strong hiding power and adhesion after paint production. The reaction with hydrogen sulfide generates black lead sulfide (PbS). Exposure to air due to the formation of lead carbonate and become white. Decomposition to lead oxide and oxygen occurs when heated to 500 °c. Oxidation. Toxic. |
| Use | Used as analytical reagent, paint pigment and glass raw material inorganic red pigment. The coating industry is used in the manufacture of anti-rust paint, iron and steel protective coatings, and has good anti-rust performance. The borvia industry is used in the manufacture of enamel and optical glass. The ceramic industry is used in the manufacture of ceramic glaze. The electronics industry is used for the manufacture of piezoelectric elements. The battery industry is used in the production of batteries. The mechanical industry is used for metal grinding. The organic chemical industry is used in the manufacture of dyes and other synthetic organic oxidants. Can be used for rubber coloring. The pharmaceutical industry is used in the manufacture of ointments and hard ointments. |
Red lead - Risk and Safety
| Risk Codes | R61 - May cause harm to the unborn child R8 - Contact with combustible material may cause fire R20/22 - Harmful by inhalation and if swallowed. R33 - Danger of cumulative effects R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R62 - Possible risk of impaired fertility R48/23/25 - R40 - Limited evidence of a carcinogenic effect |
| Safety Description | S53 - Avoid exposure - obtain special instructions before use. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 1479 5.1/PG 2 |
| WGK Germany | 3 |
| RTECS | OG5425000 |
| TSCA | Yes |
| HS Code | 28249010 |
| Hazard Class | 5.1 |
| Toxicity | LD50 i.p. in rats: 45 mg Pb/100 g (Lead, 1972) |
Red lead - Upstream Downstream Industry
Red lead - Nature
Open Data Verified Data
orange crystalline scaly or amorphous heavy powder. A mixture of lead monoxide and lead dioxide. The relative density was 9.1. Insoluble in water and alcohol, soluble in nitric acid (in the presence of hydrogen peroxide), glacial acetic acid, hot hydrochloric acid and hot lye. It has high anti-corrosion and anti-rust performance and high heat resistance, but is not acid resistant. In the oil diffusion, strong hiding power. It is an alkaline pigment and can form lead soap with free fatty acids in the lacquer base. The reaction with hydrogen sulfide generates black lead sulfide (PbS). Exposure to air due to the formation of lead carbonate and become white. Lead monoxide and oxygen were formed when heated to 500 °c. Oxidation. Toxic!
Last Update：2024-01-02 23:10:35
Red lead - Preparation Method
Open Data Verified Data
molten lead oxidation method: the electrolytic lead is heated and melted to make 30mm × 30mm lead particles, which are ball-milled at 170-210 ℃, calcined at 300 ℃ at low temperature and then pulverized, further, it is subjected to high-temperature roasting, oxidation and pulverization at 480-500 ° C. To obtain Trilead tetraoxide.
Last Update：2022-01-01 11:05:53
Red lead - Use
Open Data Verified Data
widely used in anti-rust paint. It is also used in the manufacture of optical glass, General glass, ceramic glaze, enamel and piezoelectric elements. It can be used as an oxidizing agent for dyes and other organic synthesis. In addition, it is also applied to rubber coloring, storage battery, medicine, synthetic resin, etc.
Last Update：2022-01-01 11:05:52
Red lead - Safety
Open Data Verified Data
packed in wooden cases or iron barrels lined with polyethylene plastic bags, each box (barrel) with a net weight of 50kg. There should be a marked "drug" sign on the package. Belonging to inorganic drugs. Risk code: GB 6.1 class 61507. Should be stored in a ventilated, dry warehouse. Take precautions against humidity. Should be stacked with acid, alkali and food raw materials Isolation. Fire, water, sand and all kinds of fire extinguishing. See lead oxide for toxicity and protection.
Last Update：2022-01-01 11:05:53
Red lead - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | used in storage battery, glass, pottery, enamel, anti-rust paint and other products used as analytical reagents, paint pigments and glass raw materials are widely used in anti-rust paint. It is also used in the manufacture of optical glass, General glass, ceramic glaze, enamel and piezoelectric elements. It can be used as an oxidizing agent for dyes and other organic synthesis. In addition, it is also applied to rubber coloring, storage battery, medicine, synthetic resin, etc. inorganic red pigment. The coating industry is used in the manufacture of anti-rust paint, iron and steel protective coatings, and has good anti-rust performance. The borvia industry is used in the manufacture of enamel and optical glass. The ceramic industry is used in the manufacture of ceramic glaze. The electronics industry is used for the manufacture of piezoelectric elements. The battery industry is used in the production of batteries. The mechanical industry is used for metal grinding. The organic chemical industry is used in the manufacture of dyes and other synthetic organic oxidants. Can be used for rubber coloring. The pharmaceutical industry is used in the manufacture of ointments and hard ointments. The carbon in the steel and the iron alloy was measured, the Divalent manganese oxide was heptavalent manganese (MnO-4), and the manganese was measured by colorimetric analysis and capacity analysis. Manufacturing of colored glass. Ceramic glaze. High purity grade sealing agent for high lead glass. |
| production method | molten lead oxidation. The reaction equation is as follows: 6PbO O2 → 2Pb3O4 operation method: lead 1 or lead 2 conforming to international GB 469-64 is heated and melted to make lead particles of 30mm × 30mm, ball milling at 170~210 ℃, after low temperature roasting at 300 ℃, the powder is crushed to about 0.5~1.5 μm, and then high temperature roasting, oxidation and pulverization are carried out at 480~500 ℃, lead (III) tetraoxide was obtained. electrolytic lead was heated and melted by molten lead oxidation method, and then 30 mill:30mm lead particles were prepared, which were ball-milled at 170~210 ℃, calcined at 300 ℃ at low temperature, further, it is subjected to high-temperature roasting, oxidation and pulverization at 480-500 ° C. To obtain Trilead tetraoxide. 6PbO O2 → 2Pb3O4 |
| category | toxic substances |
| toxicity grade | poisoning |
| Acute toxicity | intraperitoneal-rat LD50: 630 mg/kg; Oral-guinea pig LDL0: 1000 mg/kg |
| flammability hazard characteristics | oxidant; Combustion-supporting; Toxic lead-containing gas |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature, separate storage of food additives |
| fire extinguishing agent | water, carbon dioxide, dry powder, foam |
| Occupational Standard | 0.15 mg (lead)/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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Tel: +86-17551318830
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QQ: 3785839865
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Product Name: Lead(II,IV) oxide Request for quotationCAS: 1314-41-6
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Raw Materials for Red lead