1,2-dimethylhydrazine
C2H8N2
Consulting for 1,2-dimethylhydrazine
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Identification
- CAS Number
- 540-73-8
- UN Number
- 2382
- Index Number
- 007-013-00-0
- PubChem CID
- 1322
Physical-chemical properties
- Molecular Formula
- C2H8N2
- Molar Mass
- 60.10 g/mol
- IUPAC Name
- 1,2-dimethylhydrazine
Chemical Identifiers
- InChI
- InChI=1S/C2H8N2/c1-3-4-2/h3-4H,1-2H3
- InChI Key
- DIIIISSCIXVANO-UHFFFAOYSA-N
Overview
1,2-dimethylhydrazine (CAS 540-73-8) is an organic hydrazine derivative with high toxicity and carcinogenic properties used primarily in specialized industrial applications. This colorless to pale yellow liquid represents a significant compound within the hydrazine family, characterized by its two methyl groups attached to the nitrogen atoms of the hydrazine backbone. The substance exhibits notable volatility and water solubility, making it particularly reactive in various chemical processes. Its molecular structure, with the formula C2H8N2 and molecular weight of 60.1 g/mol, places it among the simpler alkylated hydrazine derivatives, sharing certain chemical characteristics with related compounds such as phenylhydrazine, though with distinctly different applications and safety profiles. The compound presents serious safety considerations, classified as a Category 1B carcinogen with acute toxicity properties across multiple exposure routes. The GHS classification includes pictograms for health hazards, acute toxicity, and environmental concerns, reflecting its potential for severe adverse effects. Transportation falls under ADR Class 6.1, indicating its status as a toxic substance requiring specialized handling protocols. The substance also presents aquatic chronic toxicity concerns, necessitating careful environmental management during use and disposal. Industrial applications for 1,2-dimethylhydrazine are primarily found in rocket fuel formulations as a hypergolic propellant component, where its ability to ignite spontaneously upon contact with oxidizers proves valuable. The compound also serves in specialized chemical synthesis processes and as an intermediate in pharmaceutical research applications. OYSI maintains availability of 1,2-dimethylhydrazine for qualified industrial customers requiring this specialized chemical for legitimate technical applications, ensuring proper regulatory compliance and safety documentation.
Safety & Classification
Carc. 1B; Acute Tox. 3 *; Acute Tox. 3 *; Acute Tox. 3 *; Aquatic Chronic 2
GHS Pictograms
HHazard Statements (H-Statements)
Describe the nature and severity of the hazard
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
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:
Skin Contact
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:
Ingestion
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 Number | 2382 |
| ADR Class | 6.1 |
| Packing Group | I |
| Tunnel Code | C/D |
| Proper Shipping Name | Dimethylhydrazin, symmetrisch |
| Marine Pollutant | No |
Frequently Asked Questions
What is 1,2-dimethylhydrazine?
1,2-dimethylhydrazine is an organic chemical compound with the molecular formula C2H8N2 and CAS number 540-73-8. This substance belongs to the hydrazine family and has a molecular weight of 60.1 g/mol. It is classified as a highly hazardous chemical due to its carcinogenic properties (Category 1B) and acute toxicity. The compound poses significant health and environmental risks, requiring strict safety protocols for handling and use in industrial applications.
What are the physicochemical properties of 1,2-dimethylhydrazine?
1,2-dimethylhydrazine is typically a colorless to pale yellow liquid at room temperature with a characteristic amine-like odor. The compound is highly polar and readily soluble in water due to its nitrogen-containing structure. It has a relatively low molecular weight of 60.1 g/mol and exhibits basic properties typical of hydrazine derivatives. The substance is volatile and can form explosive vapor mixtures with air under certain conditions.
What is 1,2-dimethylhydrazine used for?
1,2-dimethylhydrazine is primarily used as a rocket fuel component and propellant in aerospace applications due to its high energy density. The compound also serves as an intermediate in organic synthesis and pharmaceutical manufacturing. In research settings, it may be used in the development of specialized chemicals and as a reagent in certain analytical procedures. However, its use is heavily restricted due to its carcinogenic properties and high toxicity profile.
How to handle 1,2-dimethylhydrazine safely?
1,2-dimethylhydrazine requires extreme caution during handling due to its carcinogenic and acutely toxic nature. Personal protective equipment must include chemical-resistant gloves, full face protection, and appropriate respiratory protection. Work should only be conducted in well-ventilated areas or under fume hoods. Avoid any direct contact with skin, eyes, or inhalation of vapors. Only trained personnel with proper safety training should handle this substance in controlled laboratory or industrial environments.
How to store 1,2-dimethylhydrazine correctly?
1,2-dimethylhydrazine must be stored in tightly sealed containers in a cool, dry, and well-ventilated area away from heat sources and direct sunlight. The storage area should be secure and accessible only to authorized personnel. Keep the substance away from oxidizing agents, acids, and other incompatible materials. Storage containers should be made of compatible materials and properly labeled according to GHS requirements. Temperature control and regular inspection of containers are essential for safe storage.
What to do in case of contact with 1,2-dimethylhydrazine?
Immediate action is required in case of contact with 1,2-dimethylhydrazine due to its acute toxicity. For skin contact, remove contaminated clothing and rinse the affected area with plenty of water for at least 15 minutes. In case of eye contact, flush immediately with water and seek medical attention. If inhaled, move the person to fresh air and provide respiratory support if needed. For ingestion, do not induce vomiting and seek immediate medical attention. Always contact emergency services promptly.
How to dispose of 1,2-dimethylhydrazine appropriately?
1,2-dimethylhydrazine disposal requires specialized hazardous waste management procedures due to its carcinogenic properties and environmental toxicity. The substance cannot be disposed of through regular waste streams and must be handled by licensed hazardous waste disposal companies. Incineration at high temperatures in specialized facilities is typically required. All disposal activities must comply with local, national, and European waste regulations. Proper documentation and waste tracking are mandatory throughout the disposal process.
How to transport 1,2-dimethylhydrazine?
1,2-dimethylhydrazine is classified under ADR Class 6.1 (toxic substances) with Packing Group I, indicating maximum danger level during transport. The substance requires specialized packaging, labeling, and documentation according to dangerous goods regulations. Transport must be conducted by certified carriers with appropriate vehicle equipment and trained personnel. Emergency response information and safety data sheets must accompany shipments. Specific routing restrictions may apply depending on local transportation regulations.
Is 1,2-dimethylhydrazine subject to particular regulations?
1,2-dimethylhydrazine is subject to extensive regulatory oversight under European chemicals legislation including REACH and CLP regulations. As a Category 1B carcinogen, it faces strict restrictions on use, handling, and distribution. The substance requires safety data sheets, hazard labeling with GHS pictograms (GHS06, GHS08, GHS09), and the danger signal word. Special authorization may be required for certain uses, and occupational exposure limits are strictly regulated to protect worker health.
Where to buy 1,2-dimethylhydrazine in Europe?
1,2-dimethylhydrazine can be sourced through specialized chemical distributors in Europe, including OYSI, which supplies industrial chemicals to European markets. Due to the substance's hazardous nature and regulatory restrictions, purchases typically require proper licensing, intended use documentation, and compliance with safety regulations. Buyers must demonstrate appropriate handling capabilities and safety measures. Contact OYSI's technical team for availability, regulatory requirements, and specific ordering procedures for this controlled substance.
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Data Sources
Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.