Dioxido(dioxo)chromium;lead(2+)

CrO4Pb

dioxido(dioxo)chromium;lead(2+)

CAS7758-97-6
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
7758-97-6
EC Number
231-846-0
UN Number
3077
Index Number
082-004-00-2
PubChem CID
24460

Physical-chemical properties

Molecular Formula
CrO4Pb
Molar Mass
323.00 g/mol
IUPAC Name
dioxido(dioxo)chromium;lead(2+)

Chemical Identifiers

InChI
InChI=1S/Cr.4O.Pb/q;;;2*-1;+2
InChI Key
MOUPNEIJQCETIW-UHFFFAOYSA-N

Overview

Dioxido(dioxo)chromium;lead(2+) (CAS 7758-97-6) is an inorganic chromate compound with high toxicity and significant environmental hazards. This lead chromate compound, with the molecular formula CrO4Pb and molecular weight of 323 g/mol, represents a critical industrial chemical requiring specialized handling protocols due to its severe health and environmental classifications. As a Category 1B carcinogen and Category 1A reproductive toxicant, this chromium-lead complex poses substantial risks that necessitate strict safety measures and regulatory compliance across all applications. The substance exhibits the characteristic properties of both hexavalent chromium and lead compounds, combining the oxidizing potential of chromates with the heavy metal toxicity associated with lead-based materials. Its classification under STOT RE 2 indicates specific target organ toxicity following repeated exposure, while the Aquatic Acute 1 and Aquatic Chronic 1 categories reflect its severe impact on aquatic ecosystems. The ADR Class 9 designation categorizes it as a miscellaneous dangerous substance requiring specialized transport protocols. Primary industrial applications include specialized pigment formulations, corrosion-resistant coatings, and certain electrochemical processes where its unique chromate-lead combination provides specific performance characteristics. Unlike related compounds such as dioxido(dioxo)chromium;dioxido(dioxo)molybdenum;tris(lead(2+));sulfate, this particular chromate offers distinct solubility and reactivity profiles that make it suitable for specialized applications requiring precise chemical specifications. The compound's GHS08 and GHS09 pictograms emphasize both health hazards and environmental dangers, requiring comprehensive risk assessment and mitigation strategies. OYSI maintains availability of this specialized chromate compound for qualified industrial customers with appropriate handling capabilities and regulatory compliance frameworks.

Safety & Classification

Danger
Classification:

Carc. 1B; Repr. 1A; STOT RE 2; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H350

May cause cancer.

H373

May cause damage to organs through prolonged or repeated exposure.

H400

Very toxic to aquatic life.

H410

Very toxic to aquatic life with long lasting effects.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Transport (ADR)

UN Number3077
ADR Class9
Packing GroupIII
Tunnel Code-
Proper Shipping NameBleichromat
Marine PollutantNo

Frequently Asked Questions

What is dioxido(dioxo)chromium;lead(2+)?

Dioxido(dioxo)chromium;lead(2+) is an inorganic compound with the molecular formula CrO4Pb and CAS number 7758-97-6. This substance is a lead chromate compound with a molecular weight of 323 g/mol. It is classified as a highly hazardous chemical due to its carcinogenic and reproductive toxicity properties, requiring strict handling protocols and safety measures in industrial applications.

What are the physicochemical properties of dioxido(dioxo)chromium;lead(2+)?

Dioxido(dioxo)chromium;lead(2+) is a solid inorganic compound at room temperature with a molecular mass of 323 g/mol. As a lead chromate derivative, it typically appears as a crystalline powder with characteristic coloration. The compound exhibits limited water solubility and demonstrates stability under normal storage conditions, though specific physical parameters depend on the exact crystalline form and purity grade.

What is dioxido(dioxo)chromium;lead(2+) used for?

Dioxido(dioxo)chromium;lead(2+) is primarily used in specialized industrial applications where its unique chemical properties are required. Due to its high toxicity classification (Carc. 1B, Repr. 1A), its use is heavily restricted and typically limited to specific technical processes under controlled conditions. Applications are subject to strict regulatory oversight and require specialized handling protocols to ensure worker safety and environmental protection.

How to handle dioxido(dioxo)chromium;lead(2+) safely?

Safe handling requires comprehensive personal protective equipment including respiratory protection, chemical-resistant gloves, and protective clothing due to its carcinogenic and reproductive toxicity classification. Work must be conducted in well-ventilated areas or fume hoods to prevent inhalation exposure. All personnel must receive specialized training on hazardous material handling procedures, and exposure monitoring protocols should be implemented according to occupational safety regulations.

How to store dioxido(dioxo)chromium;lead(2+) correctly?

Proper storage requires secure, dry conditions in dedicated hazardous material storage areas with restricted access and appropriate labeling. Containers must be tightly sealed and stored away from incompatible materials, heat sources, and moisture. Storage areas should have adequate ventilation, spill containment measures, and emergency response equipment. Regular inventory checks and container integrity inspections are essential for maintaining storage safety standards.

What to do in case of contact with dioxido(dioxo)chromium;lead(2+)?

Immediate removal from exposure source is critical for all contact scenarios. For skin contact, remove contaminated clothing and wash thoroughly with soap and water. Eye contact requires immediate irrigation with clean water for at least 15 minutes. If inhaled, move to fresh air immediately. Seek medical attention promptly in all exposure cases, providing safety data sheet information to healthcare providers for appropriate treatment guidance.

How to dispose of dioxido(dioxo)chromium;lead(2+) properly?

Disposal must comply with hazardous waste regulations as the substance is classified as dangerous for environmental and human health. The material cannot be disposed of in regular waste streams and requires specialized hazardous waste treatment facilities. Collection, transportation, and disposal must be performed by licensed waste management companies following applicable national and EU waste regulations for toxic substances.

How to transport dioxido(dioxo)chromium;lead(2+)?

Transportation is regulated under ADR Class 9 (Miscellaneous dangerous goods), Packing Group III requirements. Proper packaging, labeling with GHS08 and GHS09 pictograms, and documentation including dangerous goods declarations are mandatory. Carriers must be certified for hazardous material transport, and emergency response information must accompany shipments. All transport must comply with international dangerous goods regulations for road, rail, and air transport.

Is dioxido(dioxo)chromium;lead(2+) subject to specific regulations?

Yes, this substance is subject to extensive regulatory oversight under REACH, CLP, and various occupational safety directives due to its carcinogenic (1B) and reproductive toxicity (1A) classifications. Users must comply with authorization requirements, exposure limit values, and workplace safety measures. Additional restrictions may apply for specific uses, and regular monitoring and reporting obligations are typically required for industrial users.

Where to buy dioxido(dioxo)chromium;lead(2+) in Europe?

OYSI serves as a specialized European distributor for dioxido(dioxo)chromium;lead(2+), providing technical-grade chemical products to qualified industrial customers. Due to the substance's hazardous classification, purchases require proper documentation, intended use justification, and compliance with regulatory requirements. OYSI ensures proper packaging, documentation, and transport arrangements while maintaining full traceability throughout the supply chain for regulatory compliance.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.