1,1,2,2-tetrabromoethane

C2H2Br4

CAS79-27-6
GHS06 Gefahrensymbol: Giftig – Totenkopf mit Knochen
Danger

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Identification

CAS Number
79-27-6
EC Number
201-191-5
UN Number
2504
Index Number
602-016-00-9
PubChem CID
6588

Physical-chemical properties

Molecular Formula
C2H2Br4
Molar Mass
345.65 g/mol
IUPAC Name
1,1,2,2-tetrabromoethane

Chemical Identifiers

InChI
InChI=1S/C2H2Br4/c3-1(4)2(5)6/h1-2H
InChI Key
QXSZNDIIPUOQMB-UHFFFAOYSA-N

Overview

1,1,2,2-Tetrabromoethane (CAS 79-27-6) is a halogenated organic compound with high bromine content and significant industrial utility. This brominated hydrocarbon represents a crucial member of the halogenated ethane family, distinguished by its four bromine substituents on a two-carbon backbone. With a molecular weight of 345.65 g/mol and formula C2H2Br4, tetrabromoethane exhibits properties characteristic of heavily halogenated compounds, including high density and thermal stability. The substance's systematic structure makes it particularly valuable in specialized industrial applications where controlled bromination is essential. From a safety perspective, 1,1,2,2-tetrabromoethane requires careful handling protocols due to its classification as Acute Tox. 2 and Eye Irrit. 2 under GHS regulations. The danger signal word and GHS06 pictogram indicate significant toxicological concerns, necessitating appropriate personal protective equipment and ventilation systems during industrial use. Its ADR Class 6.1 designation further emphasizes the need for specialized transport and storage conditions. The compound also presents aquatic chronic toxicity concerns, requiring environmental protection measures during handling and disposal. Industrial applications of tetrabromoethane primarily focus on its role as a brominating agent and intermediate in organic synthesis. The compound serves effectively in flame retardant formulations, leveraging bromine's fire-suppressing properties. Additionally, it functions as a density separation medium in analytical procedures, similar to how chloromethylbenzene derivatives are used in certain organic extractions. The substance also finds application in specialized solvent systems where high halogen content is advantageous. OYSI maintains reliable supply chains for 1,1,2,2-tetrabromoethane, ensuring consistent availability for European industrial customers requiring this specialized brominated compound.

Safety & Classification

Danger
Classification:

Acute Tox. 2 *; Eye Irrit. 2; Aquatic Chronic 3

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H330

Fatal if inhaled.

H319

Causes serious eye irritation.

H412

Harmful 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

Fatal

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:

Eye Contact

Irritant

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 Number2504
ADR Class6.1
Packing GroupIII
Tunnel CodeE
Proper Shipping NameTetrabromethan
Marine PollutantNo

Frequently Asked Questions

What is 1,1,2,2-tetrabromoethane?

1,1,2,2-tetrabromoethane is a halogenated organic compound with the molecular formula C2H2Br4 and CAS number 79-27-6. This chemical substance contains four bromine atoms attached to a two-carbon ethane backbone, giving it a molecular weight of 345.65 g/mol. It is classified as a highly toxic substance with acute toxicity category 2 and requires careful handling due to its dangerous properties.

What are the physicochemical properties of 1,1,2,2-tetrabromoethane?

1,1,2,2-tetrabromoethane is a dense, colorless to pale yellow liquid at room temperature with a characteristic sweet odor. Due to its four bromine atoms, it has a high density and low volatility. The compound has limited water solubility but dissolves well in organic solvents. Its high bromine content makes it non-flammable and gives it excellent flame-retardant properties.

What is 1,1,2,2-tetrabromoethane used for?

1,1,2,2-tetrabromoethane is primarily used as a flame retardant in various industrial applications, particularly in textiles, plastics, and electronic components. It serves as an intermediate in organic synthesis for producing other brominated compounds. The substance is also utilized in specialized laboratory applications and as a solvent in certain chemical processes where high density and non-flammability are required.

How to handle 1,1,2,2-tetrabromoethane safely?

1,1,2,2-tetrabromoethane requires strict safety measures due to its Acute Tox. 2 classification and eye irritant properties. Always wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas or under fume hoods to avoid inhalation. Prevent skin and eye contact, and ensure emergency eyewash stations are readily available during handling operations.

How to store 1,1,2,2-tetrabromoethane correctly?

1,1,2,2-tetrabromoethane should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers in secondary containment to prevent spills. Store separately from incompatible materials such as strong bases, metals, and oxidizing agents. Ensure storage areas are equipped with appropriate spill control measures and maintain proper inventory records.

What to do in case of contact with 1,1,2,2-tetrabromoethane?

Immediate action is required for any contact with 1,1,2,2-tetrabromoethane due to its high toxicity. For skin contact, remove contaminated clothing and wash thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15 minutes. If inhaled, move to fresh air immediately. Seek medical attention promptly for any exposure, especially if symptoms develop.

How to dispose of 1,1,2,2-tetrabromoethane appropriately?

1,1,2,2-tetrabromoethane must be disposed of as hazardous waste through licensed waste management facilities according to local and European regulations. Never pour down drains or dispose of in regular waste. Contact certified hazardous waste contractors for proper collection and treatment. Maintain detailed disposal records and ensure compliance with REACH and national waste regulations for brominated compounds.

How to transport 1,1,2,2-tetrabromoethane?

1,1,2,2-tetrabromoethane is classified under ADR as Class 6.1 (toxic substances), Packing Group III. Transportation requires proper dangerous goods packaging, labeling with GHS06 pictogram, and appropriate shipping documentation. Vehicles must carry safety equipment and drivers need ADR certification. Ensure packages are secured, marked correctly, and accompanied by safety data sheets during transport within Europe.

Is 1,1,2,2-tetrabromoethane subject to specific regulations?

1,1,2,2-tetrabromoethane is subject to European REACH regulation and CLP classification requirements due to its toxic properties. While not currently listed as a Substance of Very High Concern (SVHC), it must comply with registration, evaluation, and authorization procedures. Users must follow safety data sheet requirements, implement risk management measures, and ensure proper classification and labeling according to CLP regulation.

Where to buy 1,1,2,2-tetrabromoethane in Europe?

1,1,2,2-tetrabromoethane is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides this controlled substance to qualified industrial and research customers with proper documentation and safety data sheets. Due to its toxic classification, purchases may require additional verification of intended use and appropriate handling capabilities. Contact OYSI directly for availability, specifications, and regulatory compliance support.

Data Sources

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