Chromium(6+);bis(oxygen(2-));dichloride

Cl2CrO2

chromium(6+);bis(oxygen(2-));dichloride

CAS14977-61-8
GHS03 Gefahrensymbol: Brandfördernd – Flamme über Kreis
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS05 Gefahrensymbol: Ätzend – Ätzwirkung
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
14977-61-8
EC Number
239-056-8
UN Number
1758
Index Number
024-005-00-2
PubChem CID
22150757

Physical-chemical properties

Molecular Formula
Cl2CrO2
Molar Mass
154.90 g/mol
IUPAC Name
chromium(6+);bis(oxygen(2-));dichloride

Chemical Identifiers

InChI
InChI=1S/2ClH.Cr.2O/h2*1H;;;/q;;+6;2*-2/p-2
InChI Key
AKNPEMSZIKCOGC-UHFFFAOYSA-L

Overview

Chromium(6+);bis(oxygen(2-));dichloride (CAS 14977-61-8) is a hexavalent chromium compound with strong oxidizing properties and extreme toxicity hazards. This highly hazardous chemical compound, also known by its IUPAC designation chromium(6+);bis(oxygen(2-));dichloride, represents one of the most dangerous forms of chromium chemistry. With the molecular formula Cl2CrO2 and a molecular weight of 154.9 g/mol, this substance exhibits multiple severe health and environmental risks that require exceptional handling precautions. The compound's extensive hazard profile includes classification as an oxidizing liquid (Ox. Liq. 1), carcinogen (Carc. 1B), mutagen (Muta. 1B), and severe skin corrosive (Skin Corr. 1A). Its GHS pictograms (GHS03, GHS08, GHS05, GHS07, GHS09) reflect these diverse dangers, from oxidizing properties to long-term health effects and aquatic toxicity. The ADR Class 8 designation emphasizes its corrosive nature during transport. Safety considerations are paramount when handling this material. The compound causes severe skin burns, eye damage, and may cause cancer and genetic defects. Its strong oxidizing properties can intensify fires and cause violent reactions with combustible materials. Environmental protection is equally critical, as the substance poses acute and chronic hazards to aquatic life. Industrial applications are limited due to its extreme hazards but may include specialized chemical synthesis processes and certain electrochemical applications where hexavalent chromium chemistry is specifically required. Unlike safer alternatives such as tributyl(tetradecyl)phosphanium tetrafluoroborate used in other industrial processes, this chromium compound requires maximum containment protocols. OYSI provides this specialized chemical with comprehensive safety documentation and regulatory compliance support for qualified industrial customers with appropriate handling capabilities.

Safety & Classification

Danger
Classification:

Ox. Liq. 1; Carc. 1B; Muta. 1B; Skin Corr. 1A; Skin Sens. 1; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H271

May cause fire or explosion; strong oxidiser.

H340

May cause genetic defects.

H314

Causes severe skin burns and eye damage.

H317

May cause an allergic skin reaction.

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

Skin Contact

Harmful

Measures if substance contacts the skin

First Aid Actions

  • +P302IF ON SKIN:
  • +P352Wash with plenty of water.
  • +P361Take off immediately all contaminated clothing.
  • +P313Get medical advice/attention.

Related hazard statements:

Eye Contact

Harmful

Measures if substance gets into the eyes

First Aid Actions

  • +P305IF IN EYES:
  • +P351Rinse cautiously with water for several minutes.
  • +P338Remove contact lenses, if present and easy to do. Continue rinsing.
  • +P313Get medical advice/attention.

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 Number1758
ADR Class8
Packing GroupI
Tunnel CodeE
Proper Shipping NameChromoxychlorid
Marine PollutantNo

Frequently Asked Questions

What is chromium(6+);bis(oxygen(2-));dichloride?

Chromium(6+);bis(oxygen(2-));dichloride is a hexavalent chromium compound with the molecular formula Cl2CrO2 and CAS number 14977-61-8. This chemical substance has a molecular weight of 154.9 g/mol and belongs to the family of chromium oxychlorides. It is classified as an extremely hazardous substance due to its carcinogenic, mutagenic, and highly corrosive properties, requiring strict handling protocols and safety measures in industrial applications.

What are the physicochemical properties of chromium(6+);bis(oxygen(2-));dichloride?

Chromium(6+);bis(oxygen(2-));dichloride is a solid compound containing hexavalent chromium in its structure. As a chromium(VI) compound, it typically exhibits strong oxidizing properties and high reactivity with organic materials and reducing agents. The substance is highly soluble in water, forming corrosive solutions. Due to its chemical structure containing both chromium(VI) and chloride components, it demonstrates significant stability under normal conditions while maintaining its hazardous oxidizing characteristics.

What is chromium(6+);bis(oxygen(2-));dichloride used for?

Chromium(6+);bis(oxygen(2-));dichloride is primarily used in specialized industrial applications requiring strong oxidizing agents. Its applications include metal surface treatment processes, certain chemical synthesis reactions, and as an intermediate in the production of other chromium compounds. Due to its extreme toxicity and carcinogenic properties, its use is heavily restricted and limited to controlled industrial environments with appropriate safety measures and regulatory compliance.

How to handle chromium(6+);bis(oxygen(2-));dichloride safely?

Chromium(6+);bis(oxygen(2-));dichloride requires maximum personal protective equipment including full face protection, chemical-resistant gloves, and complete body coverage due to its Skin Corr. 1A classification. Work must be conducted in well-ventilated areas or under fume extraction systems. Avoid all skin and eye contact, inhalation, and ingestion. Use only non-sparking tools due to its oxidizing nature (Ox. Liq. 1). All personnel must receive specialized training before handling this extremely hazardous carcinogenic substance.

How to store chromium(6+);bis(oxygen(2-));dichloride correctly?

Chromium(6+);bis(oxygen(2-));dichloride must be stored in a cool, dry, well-ventilated area away from heat sources and incompatible materials. As an Ox. Liq. 1 substance, keep separated from flammable materials, reducing agents, and organic compounds. Use corrosion-resistant containers with tight sealing. Storage areas require restricted access, appropriate warning signs, and emergency response equipment. Maintain inventory records and ensure containers are properly labeled according to CLP regulations with danger pictogrammes.

What to do in case of contact with chromium(6+);bis(oxygen(2-));dichloride?

Chromium(6+);bis(oxygen(2-));dichloride contact requires immediate emergency response due to its Skin Corr. 1A properties. For skin contact, immediately flush with copious amounts of water for at least 15 minutes while removing contaminated clothing. For eye contact, rinse continuously with water and seek immediate medical attention. If inhaled, move to fresh air immediately. Never induce vomiting if ingested. Seek immediate medical attention in all cases, informing medical personnel of the carcinogenic and mutagenic nature of the substance.

How to dispose of chromium(6+);bis(oxygen(2-));dichloride appropriately?

Chromium(6+);bis(oxygen(2-));dichloride disposal requires specialized hazardous waste treatment due to its carcinogenic and mutagenic properties. Never dispose of in regular waste streams or pour down drains. Contact licensed hazardous waste disposal companies with specific expertise in chromium(VI) compounds. All waste containers must be properly labeled and documented according to hazardous waste regulations. Treatment typically involves reduction to less toxic chromium(III) forms followed by stabilization and secure landfill disposal under strict regulatory oversight.

How to transport chromium(6+);bis(oxygen(2-));dichloride?

Chromium(6+);bis(oxygen(2-));dichloride is classified as ADR Class 8 (corrosive substances), Packing Group I, indicating maximum transport restrictions. Transportation requires specialized packaging meeting UN specifications for corrosive materials. Vehicles must carry appropriate emergency response information and proper documentation. Drivers need ADR certification for dangerous goods transport. Emergency response equipment and spill containment materials must be readily available. Only authorized carriers with dangerous goods transport licenses can handle shipments of this extremely hazardous substance.

Is chromium(6+);bis(oxygen(2-));dichloride subject to specific regulations?

Chromium(6+);bis(oxygen(2-));dichloride is subject to extensive regulatory control under REACH, CLP, and national chemical safety legislation. Its Carc. 1B and Muta. 1B classifications trigger strict authorization requirements and workplace exposure limits. The substance requires safety data sheets, hazard labeling with danger pictogrammes (GHS03, GHS05, GHS07, GHS08, GHS09), and worker health surveillance programs. Import/export may require special permits, and use is restricted to essential industrial applications with demonstrated risk management measures.

Where to buy chromium(6+);bis(oxygen(2-));dichloride in Europe?

Chromium(6+);bis(oxygen(2-));dichloride is available through specialized chemical distributors like OYSI, which serves the European market with technical-grade chemicals. Due to its extreme hazard classification and regulatory restrictions, purchase requires proper business justification, safety documentation, and compliance with local regulations. OYSI provides technical support and regulatory guidance for proper handling and use. Customers must demonstrate appropriate facilities, trained personnel, and waste disposal arrangements before purchase of this highly regulated carcinogenic substance.

Data Sources

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