Hexafluorosilicon(2-);lead(2+)

F6PbSi

hexafluorosilicon(2-);lead(2+)

CAS25808-74-6
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
25808-74-6
EC Number
247-278-1
UN Number
2856
Index Number
009-014-00-1
PubChem CID
11966241

Physical-chemical properties

Molecular Formula
F6PbSi
Molar Mass
349.00 g/mol
IUPAC Name
hexafluorosilicon(2-);lead(2+)

Chemical Identifiers

InChI
InChI=1S/F6Si.Pb/c1-7(2,3,4,5)6;/q-2;+2
InChI Key
AIEQFQFGMBAKSG-UHFFFAOYSA-N

Overview

Hexafluorosilicon(2-);lead(2+) (CAS 25808-74-6) is an inorganic lead-silicon fluoride compound with high toxicity and environmental hazard properties. This specialized chemical compound, also known by its EC number 247-278-1, represents a complex fluorosilicate salt containing lead(2+) cations and hexafluorosilicon(2-) anions. With a molecular formula of F6PbSi and molecular weight of 349 g/mol, this substance exhibits significant hazardous characteristics that require careful handling and regulatory compliance. The compound falls under ADR Class 6.1, indicating its toxic nature, and carries the danger signal word along with multiple GHS pictograms including GHS08, GHS07, and GHS09. The safety profile of hexafluorosilicon(2-);lead(2+) presents multiple concerns, classified as Reproductive Toxicity Category 1A, Acute Toxicity Category 4, and Specific Target Organ Toxicity-Repeated Exposure Category 2. Additionally, it poses severe environmental risks with Aquatic Acute 1 and Aquatic Chronic 1 classifications. These properties place it in a similar hazard category to other lead-containing compounds such as tetrakis(lead(2+));tris(oxygen(2-));sulfate, though with distinct chemical behavior due to its fluorosilicate structure. Industrial applications of this compound are typically found in specialized manufacturing processes where its unique lead-fluorosilicate chemistry provides specific functional properties. Common uses include certain electrochemical applications, specialized glass formulations, and as an intermediate in advanced materials processing. The compound may also serve as a precursor in the synthesis of other fluorinated lead compounds for niche industrial applications. OYSI maintains availability of hexafluorosilicon(2-);lead(2+) for qualified industrial customers with appropriate handling capabilities and regulatory compliance frameworks.

Safety & Classification

Danger
Classification:

Repr. 1A; Acute Tox. 4 *; Acute Tox. 4 *; STOT RE 2 *; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H332

Harmful if inhaled.

H302

Harmful if swallowed.

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

Inhalation

Harmful

Measures if vapours or dust are inhaled

First Aid Actions

  • +P304IF INHALED:
  • +P340Remove person to fresh air and keep comfortable for breathing.
  • +P311Call a POISON CENTER/doctor.

Related hazard statements:

Ingestion

Harmful

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number2856
ADR Class6.1
Packing GroupIII
Tunnel CodeE
Proper Shipping NameBleihexafluorsilikat
Marine PollutantNo

Frequently Asked Questions

What is hexafluorosilicon(2-);lead(2+)?

Hexafluorosilicon(2-);lead(2+) is an inorganic chemical compound with the molecular formula F6PbSi and CAS number 25808-74-6. This lead-containing fluorosilicate has a molecular weight of 349 g/mol and is classified as a highly hazardous substance due to its reproductive toxicity (Repr. 1A) and acute toxicity properties. The compound poses significant health risks and environmental concerns, requiring strict handling protocols and safety measures during industrial use.

What are the physicochemical properties of hexafluorosilicon(2-);lead(2+)?

Hexafluorosilicon(2-);lead(2+) is a fluorosilicate compound containing lead with a molecular weight of 349 g/mol. As a lead-fluorosilicate complex, it typically exists as a crystalline solid at room temperature. The compound's specific physical properties such as color, odor, and solubility may vary depending on the exact crystal structure and hydration state. Due to its ionic nature and fluoride content, it likely exhibits limited solubility in non-polar solvents.

What is hexafluorosilicon(2-);lead(2+) used for?

Hexafluorosilicon(2-);lead(2+) is primarily used in specialized industrial applications where lead-fluorosilicate compounds are required. Common applications include certain metallurgical processes, specialized glass manufacturing, and as an intermediate in chemical synthesis. Due to its high toxicity classification (Repr. 1A, Acute Tox. 4), its use is restricted to professional industrial settings with appropriate safety controls. The compound may also serve as a precursor for other lead or fluorosilicate-containing materials in specialized chemical processes.

How to handle hexafluorosilicon(2-);lead(2+) safely?

Hexafluorosilicon(2-);lead(2+) requires strict safety protocols due to its Danger signal word and multiple hazard classifications. Essential PPE includes respiratory protection, chemical-resistant gloves, safety goggles, and protective clothing to prevent skin and eye contact. Work in well-ventilated areas or under fume extraction systems to minimize inhalation risks. Avoid generating dust or aerosols, and implement strict hygiene measures including hand washing and separate work clothing. Only trained personnel should handle this substance following established safety procedures.

How to store hexafluorosilicon(2-);lead(2+) correctly?

Hexafluorosilicon(2-);lead(2+) must be stored in a secure, well-ventilated area away from incompatible materials and ignition sources. Keep containers tightly sealed and protected from moisture and temperature extremes. Due to its reproductive toxicity and acute toxicity classifications, storage requires restricted access with appropriate warning signs. Store separately from oxidizing agents, acids, and organic materials. Ensure storage areas have spill containment measures and emergency response equipment readily available for accidental releases.

What to do in case of contact with hexafluorosilicon(2-);lead(2+)?

Immediate action is required for any contact with hexafluorosilicon(2-);lead(2+) due to its acute toxicity. For skin contact, remove contaminated clothing and flush affected areas with copious amounts of water for at least 15 minutes. If inhaled, move to fresh air immediately. For eye contact, rinse thoroughly with water for at least 15 minutes. Seek immediate medical attention in all cases of exposure, informing healthcare providers of the specific substance and its hazard classifications. Do not induce vomiting if ingested.

How to dispose of hexafluorosilicon(2-);lead(2+) appropriately?

Hexafluorosilicon(2-);lead(2+) requires specialized hazardous waste disposal due to its lead content and multiple hazard classifications. Disposal must comply with local and international regulations for toxic and environmentally hazardous substances. Contact licensed hazardous waste disposal companies with expertise in heavy metal and fluorinated compound treatment. Never discharge to sewers, soil, or waterways due to its Aquatic Acute 1 and Aquatic Chronic 1 classifications. Maintain proper documentation throughout the disposal process as required by waste regulations.

How to transport hexafluorosilicon(2-);lead(2+)?

Hexafluorosilicon(2-);lead(2+) is classified under ADR Class 6.1 (Toxic substances), Packing Group III for transportation purposes. Transport requires appropriate UN specification packaging designed for toxic substances, with proper labeling including GHS pictogramms GHS07, GHS08, and GHS09. Shipping documents must include the correct technical name, UN number, and hazard classifications. Only authorized carriers experienced in hazardous materials transport should handle shipments, following all applicable dangerous goods regulations for toxic and environmentally hazardous substances.

Is hexafluorosilicon(2-);lead(2+) subject to specific regulations?

Hexafluorosilicon(2-);lead(2+) is subject to extensive regulatory oversight under REACH and CLP regulations due to its multiple hazard classifications including reproductive toxicity (Repr. 1A). While not currently listed as an SVHC, its lead content and toxicity profile subject it to strict handling, labeling, and reporting requirements. The substance falls under restrictions for toxic substances and may be subject to authorization requirements for certain uses. Users must comply with occupational exposure limits and environmental protection measures as mandated by relevant chemical safety legislation.

Where to buy hexafluorosilicon(2-);lead(2+) in Europe?

Hexafluorosilicon(2-);lead(2+) is available through specialized chemical distributors in Europe, including OYSI, a professional distributor of technical chemicals. Due to its hazardous nature and regulatory requirements, purchase is typically restricted to qualified industrial users with appropriate safety infrastructure and regulatory compliance. Suppliers must verify customer qualifications and intended use before sale. Contact OYSI or other authorized chemical distributors for availability, specifications, and regulatory documentation required for this controlled substance.

Data Sources

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