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-arsenic compound with high toxicity and environmental hazard properties. This specialized chemical compound, also identified by EC number 232-048-5, represents a complex inorganic material combining silver and arsenic elements in a unique molecular structure. With the molecular formula Ag3AsH3O3 and a molecular weight of 449.548 g/mol, arsorous acid;silver exhibits distinctive properties that make it relevant for specific industrial applications while requiring stringent safety protocols due to its hazardous nature. The compound is classified under multiple danger categories, including Acute Toxicity 3 for both oral and dermal exposure pathways, as well as Aquatic Acute 1 and Aquatic Chronic 1 for environmental hazards. These classifications necessitate the "Danger" signal word and corresponding GHS pictograms GHS06 (skull and crossbones) and GHS09 (environmental hazard). For transportation purposes, it falls under ADR class 6.1, indicating its toxic substance classification. Safety considerations are paramount when handling this material, requiring appropriate personal protective equipment, controlled storage conditions, and specialized waste disposal procedures. Unlike organophosphorus compounds such as diethoxy-[(5-phenyl-1,2,oxazol-3-yl)oxy]-sulfanylidene-lambda5-phosphane, arsorous acid;silver presents unique challenges due to its dual heavy metal and metalloid composition. Industrial applications typically include specialized metallurgical processes, certain analytical chemistry procedures, and specific materials science research applications where the unique silver-arsenic combination provides desired properties. OYSI maintains availability of arsorous acid;silver through our European distribution network, ensuring compliance with all relevant safety regulations and providing comprehensive technical documentation for qualified industrial customers.

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 combines silver and arsenic elements in a specific chemical structure with a molecular weight of 449.548 g/mol. It is classified as a highly toxic substance with significant environmental hazards, requiring careful handling and specialized safety protocols in professional applications.

What are the physicochemical properties of arsorous acid;silver?

Arsorous acid;silver is a solid inorganic compound with the molecular formula Ag3AsH3O3 and a molecular mass of 449.548 g/mol. The substance contains both silver and arsenic components, which influence its chemical behavior and stability. Specific physical properties such as color, odor, and solubility data require consultation of detailed technical specifications due to the complex nature of this arsenic-silver compound.

What is arsorous acid;silver used for?

Arsorous acid;silver is primarily used in specialized industrial applications where its unique chemical properties are required. Due to its high toxicity classification (Acute Tox. 3) and environmental hazards, its use is typically restricted to controlled professional environments such as specialized chemical synthesis, research applications, or specific industrial processes requiring arsenic-silver compounds under strict safety protocols.

How to handle arsorous acid;silver safely?

Arsorous acid;silver requires extreme safety precautions due to its Acute Tox. 3 classification and Danger signal word. Essential protective equipment includes chemical-resistant gloves, safety goggles, and respiratory protection in well-ventilated areas. Handlers must avoid inhalation, skin contact, and ingestion. Work should be conducted in fume hoods with emergency wash stations nearby, following strict contamination prevention protocols.

How to store arsorous acid;silver correctly?

Arsorous acid;silver must be stored in a cool, dry, well-ventilated area away from incompatible materials and ignition sources. The storage area should be secured with restricted access due to the substance's high toxicity. Containers must be tightly sealed and properly labeled with appropriate hazard warnings. Storage facilities should include spill containment measures and emergency response equipment.

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

Immediate action is critical due to the Acute Tox. 3 classification of arsorous acid;silver. For skin contact, remove contaminated clothing and rinse thoroughly with water. For eye contact, flush immediately with water for at least 15 minutes. If ingested or inhaled, seek immediate medical attention. Remove affected persons from exposure area and provide fresh air. Contact emergency services promptly.

How to dispose of arsorous acid;silver appropriately?

Arsorous acid;silver requires specialized hazardous waste disposal due to its toxic and environmental hazard classifications. The substance cannot be disposed of through normal waste streams and must be handled by licensed hazardous waste contractors. Disposal must comply with local and European regulations regarding toxic substances and environmental protection. Empty containers also require specialized treatment before disposal.

How to transport arsorous acid;silver?

Arsorous acid;silver is classified under ADR Class 6.1 (Toxic substances), Packing Group II, indicating significant transport restrictions. Transportation requires specialized packaging, proper labeling with GHS06 and GHS09 pictograms, and documentation complying with dangerous goods regulations. Only certified carriers experienced in handling toxic materials should transport this substance, following strict European transport regulations.

Is arsorous acid;silver subject to specific regulations?

Arsorous acid;silver is subject to extensive European chemical regulations including REACH registration requirements and CLP classification as Acute Tox. 3 with environmental hazards. The substance requires safety data sheets, proper labeling with Danger signal word and specific pictograms. It is not currently listed as an SVHC substance, but its toxic classification subjects it to strict handling, storage, and use restrictions.

Where to buy arsorous acid;silver in Europe?

Arsorous acid;silver is available through OYSI, a specialized European distributor of technical chemicals. Due to the substance's high toxicity classification and regulatory requirements, procurement is typically limited to qualified professional users with appropriate safety infrastructure. OYSI can provide technical support, safety documentation, and ensure compliant delivery to authorized facilities across Europe.

Data Sources

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