Arsorous acid;silver

Ag3AsH3O3

arsorous acid;silver

CAS7784-08-9
GHS06 Gefahrensymbol: Giftig – Totenkopf mit Knochen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
7784-08-9
EC Number
232-048-5
UN Number
1683
Index Number
033-002-00-5
PubChem CID
44144454

Physical-chemical properties

Molecular Formula
Ag3AsH3O3
Molar Mass
449.55 g/mol
IUPAC Name
arsorous acid;silver

Chemical Identifiers

InChI
InChI=1S/3Ag.AsH3O3/c;;;2-1(3)4/h;;;2-4H
InChI Key
FQUOIMHWJGIXSS-UHFFFAOYSA-N

Overview

Arsorous acid;silver (CAS 7784-08-9) is an inorganic silver-arsenite compound with high toxicity and environmental hazard properties. This specialized chemical compound, with the molecular formula Ag3AsH3O3 and a molecular weight of 449.548 g/mol, represents a unique combination of silver and arsenic chemistry. The compound is classified under EC number 232-048-5 and falls within the broader category of metal arsenites, which are known for their distinct chemical reactivity and toxicological profiles. The presence of both silver and arsenic components gives this substance particular significance in various technical applications where the properties of both elements are required. From a safety perspective, arsorous acid;silver carries significant hazard classifications including Acute Toxicity Category 3 for multiple exposure routes, reflecting its potential harm to human health through ingestion, inhalation, or dermal contact. The compound also presents serious environmental concerns, classified as Aquatic Acute 1 and Aquatic Chronic 1, indicating immediate and long-term risks to aquatic ecosystems. The GHS06 and GHS09 pictograms emphasize both the acute toxicity and environmental hazards, while the ADR Class 6.1 classification confirms its status as a toxic substance for transportation purposes. Industrial applications of this compound typically involve specialized chemical processes where both silver and arsenic functionalities are beneficial. Common uses include certain catalytic processes and specialized analytical applications. While related compounds such as diethoxy-[(5-phenyl-1,2-oxazol-3-yl)oxy]-sulfanylidene-lambda5-phosphane serve different industrial purposes, they share similar requirements for careful handling and specialized storage conditions. OYSI maintains availability of arsorous acid;silver for qualified industrial customers requiring this specialized chemical compound.

Safety & Classification

Danger
Classification:

Acute Tox. 3 *; Acute Tox. 3 *; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H331

Toxic if inhaled.

H301

Toxic if swallowed.

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

Toxic

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

Toxic

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 Number1683
ADR Class6.1
Packing GroupII
Tunnel CodeD/E
Proper Shipping NameSilberarsenit
Marine PollutantNo

Frequently Asked Questions

What is arsorous acid;silver?

Arsorous acid;silver is an inorganic chemical compound with the molecular formula Ag3AsH3O3 and CAS number 7784-08-9. This substance contains both silver and arsenic components, making it highly toxic and environmentally hazardous. With a molecular weight of 449.548 g/mol, it is classified as acutely toxic and poses significant risks to aquatic environments. The compound requires careful handling due to its dangerous properties and potential health impacts.

What are the physicochemical properties of arsorous acid;silver?

Arsorous acid;silver is a solid inorganic compound at room temperature with distinctive properties related to its silver and arsenic content. The substance exhibits high toxicity and environmental persistence characteristics. Its molecular formula Ag3AsH3O3 indicates a complex structure containing three silver atoms, one arsenic atom, three hydrogen atoms, and three oxygen atoms. The compound's properties make it poorly compatible with aquatic environments and require specialized handling protocols.

What is arsorous acid;silver used for?

Arsorous acid;silver is primarily used in specialized industrial applications where both silver and arsenic properties are required. The compound may find applications in certain analytical chemistry procedures, specialized research contexts, or niche industrial processes. Due to its high toxicity classification (Acute Tox. 3) and environmental hazards, its use is typically limited to controlled laboratory or industrial environments with appropriate safety measures and regulatory compliance.

How to handle arsorous acid;silver safely?

Arsorous acid;silver must be handled with extreme caution due to its Acute Tox. 3 classification and GHS06 pictogram. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and respiratory protection. Work should be conducted in well-ventilated areas or under fume hoods. Avoid skin and eye contact, inhalation, and ingestion. Implement strict hygiene measures including thorough handwashing after handling. Emergency procedures should be readily available due to the substance's acute toxicity.

How to store arsorous acid;silver correctly?

Arsorous acid;silver should be stored in a cool, dry, well-ventilated area away from incompatible materials and ignition sources. Use appropriate secondary containment to prevent environmental release due to its aquatic toxicity classification. Storage areas must be secure and accessible only to trained personnel. Containers should be properly labeled with hazard information and kept tightly sealed. Regular inspection of storage conditions and container integrity is essential to prevent accidental exposure or environmental contamination.

What to do in case of contact with arsorous acid;silver?

Arsorous acid;silver contact requires immediate emergency response due to its acute toxicity. For skin contact, immediately remove contaminated clothing and flush affected areas with copious amounts of water for at least 15 minutes. In case of eye contact, rinse thoroughly with water and seek immediate medical attention. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek emergency medical care. Always consult a physician and provide the safety data sheet.

How to dispose of arsorous acid;silver appropriately?

Arsorous acid;silver disposal must comply with local and international hazardous waste regulations due to its toxic and environmentally hazardous classification. The substance cannot be disposed of through regular waste streams and requires specialized hazardous waste treatment facilities. Collection, transportation, and disposal must be performed by licensed waste management companies experienced with toxic substances. Proper documentation and tracking are mandatory throughout the disposal process to ensure environmental protection and regulatory compliance.

How to transport arsorous acid;silver?

Arsorous acid;silver is classified as ADR Class 6.1 (toxic substances) Packing Group II, indicating significant transport restrictions. Transportation requires appropriate hazardous goods packaging, labeling with GHS06 pictogram, and proper documentation including transport permits. Only certified carriers experienced with toxic materials should handle shipment. Packages must be secured to prevent damage during transport, and emergency response information must accompany shipments. Compliance with international dangerous goods regulations is mandatory.

Is arsorous acid;silver subject to particular regulations?

Arsorous acid;silver is subject to extensive chemical safety regulations under REACH and CLP frameworks in Europe. The substance requires safety data sheets, proper classification labeling with GHS06 and GHS09 pictograms, and "Danger" signal word. While not currently listed as SVHC, its acute toxicity and environmental hazard classifications trigger specific handling, storage, and disposal requirements. Users must comply with occupational exposure limits, environmental protection measures, and hazardous substance management protocols.

Where to buy arsorous acid;silver in Europe?

Arsorous acid;silver is available through OYSI, a specialized European distributor of technical chemicals with expertise in hazardous substances. OYSI provides proper regulatory documentation, safety data sheets, and compliant packaging for this toxic compound. As a professional chemical distributor, OYSI ensures full regulatory compliance and can advise on safe handling requirements. Contact OYSI directly for availability, technical specifications, and delivery options tailored to your specific industrial or research applications.

Data Sources

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