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 high toxicity potential. This inorganic chromium compound, also known by its molecular formula Cl2CrO2, represents a significant chemical intermediate in various industrial processes. With a molecular weight of 154.9 g/mol and EC number 239-056-8, this substance exhibits the characteristic properties of hexavalent chromium compounds, including powerful oxidizing capabilities and considerable health hazards that require specialized handling protocols. The compound's classification as Oxidizing Liquid 1, Carcinogenic 1B, and Mutagenic 1B, along with its corrosive nature (Skin Corr. 1A), necessitates stringent safety measures during storage, handling, and transportation. The presence of multiple GHS pictograms (GHS03, GHS08, GHS05, GHS07, GHS09) and the "Danger" signal word emphasize the critical importance of proper personal protective equipment and environmental controls. Its ADR Class 8 classification further underscores the corrosive nature that demands specialized transport conditions. In industrial applications, this chromium compound finds primary use in electroplating processes, surface treatment operations, and as an oxidizing agent in specialized chemical synthesis. The compound's reactivity profile makes it valuable in metal finishing industries where precise chromium deposition is required. Unlike related quaternary ammonium compounds such as tributyl(tetradecyl)phosphanium tetrafluoroborate, this chromium species operates through different mechanisms in surface modification applications. Environmental considerations are paramount given its Aquatic Acute 1 and Aquatic Chronic 1 classifications, requiring comprehensive waste management strategies and emission controls in industrial settings. OYSI provides this specialized chromium compound to qualified industrial customers with complete regulatory documentation and technical support for safe implementation in approved applications.

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 an inorganic chemical compound with the formula Cl2CrO2 and CAS number 14977-61-8. This chromium(VI) compound has a molecular weight of 154.9 g/mol and contains hexavalent chromium in its oxidized state. It is classified as a highly hazardous substance with multiple dangerous properties including carcinogenic, mutagenic, corrosive, and oxidizing characteristics, making it subject to strict safety regulations.

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

Chromium(6+);bis(oxygen(2-));dichloride is a chemical compound with the molecular formula Cl2CrO2 and a molar mass of 154.9 g/mol. As a chromium(VI) compound, it typically appears as a solid with characteristic coloration. The substance exhibits strong oxidizing properties due to the presence of hexavalent chromium. Its exact physical appearance, solubility, and other specific properties depend on crystalline form and purity grade.

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

Chromium(6+);bis(oxygen(2-));dichloride is primarily used in specialized industrial applications where chromium(VI) compounds are required. Its strong oxidizing properties make it suitable for certain chemical synthesis processes and analytical applications. Due to its high toxicity and carcinogenic properties, its use is heavily restricted and limited to professional applications with appropriate safety measures. Industrial users must comply with strict regulatory requirements when handling this substance.

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

Chromium(6+);bis(oxygen(2-));dichloride requires extreme safety precautions due to its carcinogenic, mutagenic, and corrosive properties. Essential PPE includes chemical-resistant gloves, safety goggles, respiratory protection, and full protective clothing. Work must be conducted in well-ventilated areas or fume hoods. Avoid skin and eye contact, inhalation, and ingestion. Use non-sparking tools due to oxidizing properties. Ensure emergency shower and eyewash stations are readily accessible.

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

Chromium(6+);bis(oxygen(2-));dichloride must be stored in a cool, dry, well-ventilated area away from incompatible materials. As an oxidizing liquid (Ox. Liq. 1), keep away from combustible materials, reducing agents, and organic substances. Store in original, tightly sealed containers made of compatible materials. Ensure proper labeling and restrict access to authorized personnel only. Implement secondary containment measures and maintain appropriate temperature control to prevent degradation.

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

Chromium(6+);bis(oxygen(2-));dichloride exposure requires immediate emergency response due to its corrosive nature. For skin contact, immediately flush with copious amounts of water for at least 15 minutes and remove contaminated clothing. For eye contact, rinse thoroughly with water for at least 15 minutes. If inhaled, move to fresh air immediately. If ingested, do not induce vomiting. Seek immediate medical attention in all cases and inform medical personnel about the chromium(VI) exposure.

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

Chromium(6+);bis(oxygen(2-));dichloride must be disposed of as hazardous waste through licensed waste management companies specializing in heavy metal and carcinogenic substance disposal. Never discharge into sewers, soil, or water bodies due to its aquatic toxicity. Contaminated materials, PPE, and containers require proper hazardous waste classification. Disposal must comply with local, national, and EU waste regulations including the Waste Framework Directive and specific chromium(VI) disposal requirements.

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

Chromium(6+);bis(oxygen(2-));dichloride is classified as ADR Class 8 (corrosive substances) with Packing Group I, indicating high danger level. Transport requires UN-approved packaging suitable for corrosive materials and compliance with ADR regulations. Proper shipping documentation, hazard labels, and placarding are mandatory. Only trained personnel should handle transportation, and emergency response information must accompany shipments. Vehicle requirements and routing restrictions may apply depending on quantity and destination.

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

Chromium(6+);bis(oxygen(2-));dichloride is subject to extensive EU regulations including REACH registration requirements and CLP classification as a carcinogenic and mutagenic substance. It falls under strict occupational exposure limits and requires authorization for certain uses under REACH Annex XIV. The substance must comply with the Carcinogens and Mutagens Directive (2004/37/EC) and may be subject to additional national restrictions. Users must implement risk management measures and worker protection programs.

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

Chromium(6+);bis(oxygen(2-));dichloride is available through OYSI, a specialized European distributor of technical chemicals. As a restricted substance requiring professional handling, OYSI ensures compliance with all regulatory requirements and provides necessary documentation including safety data sheets and certificates of analysis. Purchase requires verification of legitimate industrial use and appropriate safety infrastructure. Contact OYSI directly for availability, specifications, and regulatory compliance support for this controlled chemical substance.

Data Sources

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