1,1-difluoroethylene SDS
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifier
- Product name： 1,1-difluoroethylene
- CAS： 75-38-7
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses： For R&D use only. Not for medicinal, household or other use.
- Uses advised against： none
Company Identification
- Company：Chemicalbook.in
- Address：5 vasavi Layout Basaveswara Nilayam Pragathi Nagar Hyderabad, India -500090
- Telephone：+91 9550333722
SECTION 2: Hazards identification
Classification of the substance or mixture
Flammable gases, Category 1A, Flammable gas
GHS label elements, including precautionary statements
-
Pictogram(s)
- Signal word Danger
H220 Extremely flammable gas
H280 Contains gas under pressure; may explode if heated
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P377 Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P381 In case of leakage, eliminate all ignition sources.
P403 Store in a well-ventilated place.
none
Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
Substance
- Chemical name: 1,1-difluoroethylene
- Common names and synonyms: 1,1-difluoroethylene
- CAS number: 75-38-7
- EC number: 200-867-7
- Concentration: 100%
SECTION 4: First aid measures
Description of necessary first-aid measures
Fresh air, rest.
ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention .
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth with water. Do not induce vomiting. Never give anything by mouth to an unconscious person. Call a doctor or Poison Control Center immediately.
Most important symptoms/effects, acute and delayed
Excerpt from ERG Guide 116P [Gases - Flammable (Unstable)]: Vapors may cause dizziness or asphyxiation without warning. Some may be toxic if inhaled at high concentrations. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire may produce irritating and/or toxic gases. (ERG, 2016)
Indication of immediate medical attention and special treatment needed, if necessary
Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. Chlorinated fluorocarbons (CFCs) and related compounds
SECTION 5: Firefighting measures
Suitable extinguishing media
This chemical is a flammable gas. Poisonous gases are produced in fire including hydrogen fluoride, fluorine, and fluorides. Extinguish with CO2 or dry chemical to allow access to valves to shut off supply if necessary. Do not extinguish the fire unless the flow of gas can be stopped and any remaining gas is out of the line. Specially trained personnel may use fog lines to cool exposures and let the fire burn itself out. Vapors are heavier than air and will collect in low areas. Vapors may travel long distances to ignition sources and flashback. Vapors in confined areas may explode when exposed to fire. Containers may explode in fire. Storage containers and parts of containers may rocket great distances, in many directions. If material or contaminated runoff enters waterways, notify downstream users of potentially contaminated waters. Notify local health and fire officials and pollution control agencies. From a secure, explosion-proof location, use water spray to cool exposed containers. If cooling streams are ineffective (venting sound increases in volume and pitch, tank discolors or shows any signs of deforming), withdraw immediately to a secure position. If cylinders are exposed to excessive heat from fire or flame contact, withdraw immediately to a secure location.
Specific hazards arising from the chemical
Excerpt from ERG Guide 116P [Gases - Flammable (Unstable)]: EXTREMELY FLAMMABLE. Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air. Silane (UN2203) will ignite spontaneously in air. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Cylinders exposed to fire may vent and release flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket. (ERG, 2016)
Special protective actions for fire-fighters
Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out. In other cases extinguish with powder, carbon dioxide. In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position.
SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Evacuate danger area! Consult an expert! Ventilation. NEVER direct water jet on liquid. Personal protection: complete protective clothing including self-contained breathing apparatus.
Environmental precautions
Evacuate danger area! Consult an expert! Ventilation. NEVER direct water jet on liquid. Personal protection: complete protective clothing including self-contained breathing apparatus.
Methods and materials for containment and cleaning up
Evacuate danger area! Consult an expert! Ventilation. NEVER direct water jet on liquid.
SECTION 7: Handling and storage
Precautions for safe handling
NO open flames, NO sparks and NO smoking. Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding) if in liquid state. Use non-sparking handtools. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Fireproof. Separated from incompatible materials. See Chemical Dangers. Store only if stabilized.Store gas cylinders in a cool, dry place and use the safety precautions necessary with all compressed gases. High concentrations cause a deficiency of oxygen with the risk of unconsciousness or death. Check oxygen content is at least 19% before entering storage or spill area. Store in tightly closed containers in a cool, well-ventilated area away from heat. Sources of ignition, such as smoking and open flames, are prohibited where this chemical is used, handled, or stored in a manner that could create a potential fire or explosion hazard. Use only nonsparking tools and equipment, expecially when opening and closing containers of this chemical ... A regulated, marked area should be established there this chemical is handled, used, or stored ...
SECTION 8: Exposure controls/personal protection
Control parameters
TLV: 500 ppm as TWA; A4 (not classifiable as a human carcinogen).MAK: carcinogen category: 3B
no data available
Appropriate engineering controls
Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.
Individual protection measures, such as personal protective equipment (PPE)
Wear safety goggles.
Cold-insulating gloves. Protective clothing.
Use ventilation.
no data available
SECTION 9: Physical and chemical properties and safety characteristics
-
Physical state：
Gaseous. Gas.
-
Colour：
Colourless.
-
Odour：
Nearly odorless
-
Melting point/freezing point：
-144 °C. Atm. press.:1 atm.
-
Boiling point or initial boiling point and boiling range：
-83 °C. Atm. press.:1 atm.
-
Flammability：
Flammable Gas
-
Lower and upper explosion limit/flammability limit：
Lower flammable limit: 5.5% by volume; Upper flammable limit: 21.3% by volume
-
Flash point：
<= -65 °C.
-
Auto-ignition temperature：
640 °C.
-
Decomposition temperature：
no data available
-
pH：
no data available
-
Kinematic viscosity：
7.7574 pascal-seconds (liquid) at boiling point
-
Solubility：
0.018 g/100 g at 77° F and 760 mm Hg (NTP, 1992)
-
Partition coefficient n-octanol/water：
log Pow = 1.24.
-
Vapour pressure：
35 900 hPa. Temperature:20 °C.;40 000 hPa. Temperature:25 °C.
-
Density and/or relative density：
0.59. Temperature:23.6 °C.
-
Relative vapour density：
2.2 (vs air)
-
Particle characteristics：
no data available
SECTION 10: Stability and reactivity
Reactivity
The substance can form explosive peroxides. The substance may polymerize. This generates a large amount of heat, with fire or explosion hazard. Heating may cause violent combustion or explosion. Decomposes on heating and on burning. This produces toxic and corrosive fumes including hydrogen fluoride, fluorine and fluorides. Reacts violently with oxidants and many other materials. This generates fire and explosion hazard.
Chemical stability
no data available
Possibility of hazardous reactions
Flammable, dangerous fire riskThe gas is heavier than air and may travel along the ground; distant ignition possible. The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen. As a result of flow, agitation, etc., electrostatic charges can be generated.1,1-DIFLUOROETHYLENE is sensitive to heat. This compound is incompatible with oxidizers. It can react violently with hydrogen chloride. Alkyl boron and alkyl hyponitrite compounds initiate polymerization. It will form peroxides on exposure to pure oxygen. (NTP, 1992).
Conditions to avoid
no data available
Incompatible materials
A very dangerous fire hazard when exposed to heat, flame, or oxidizers. Explosive in the form of vapor when exposed to heat or flame. Violent reaction with hydrgen chloride when heated under pressure ...
Hazardous decomposition products
The substance decomposes on heating or on burning producing toxic and corrosive fumes including hydrogen fluoride, fluorine and fluorides.
SECTION 11: Toxicological information
Acute toxicity
- Oral: no data available
- Inhalation: LCLo - rat (male/female) - > 200 000 ppm.
- Dermal: no data available
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
No epidemiological data relevant to the carcinogenicity of vinylidene fluoride were available. There is inadequate evidence for the carcinogenicity of vinylidene fluoride in experimental animals. Overall evaluation Vinylidene fluoride is not classifiable as to its carcinogenicity to humans (Group 3).
Reproductive toxicity
no data available
STOT-single exposure
Rapid evaporation of the liquid may cause frostbite. The substance may cause effects on the central nervous system.
STOT-repeated exposure
no data available
Aspiration hazard
A harmful concentration of this gas in the air will be reached very quickly on loss of containment.
SECTION 12: Ecological information
Toxicity
- Toxicity to fish: LC50 - freshwater fish - 246 mg/L - 96 h.
- Toxicity to daphnia and other aquatic invertebrates: LC50 - daphnids - 250 mg/L - 48 h.
- Toxicity to algae: EC50 - green algae - 150 mg/L - 96 h.
- Toxicity to microorganisms: no data available
Persistence and degradability
Highly chlorinated/fluorinated compounds are not expected to biodegrade rapidly(1).
Bioaccumulative potential
An estimated BCF of 3 was calculated in fish for 1,1-difluoroethene(SRC), using a log Kow of 1.24(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).
Mobility in soil
Using a structure estimation method based on molecular connectivity indices(1), the Koc of 1,1-difluoroethene can be estimated to be 32(SRC). According to a classification scheme(2), this estimated Koc value suggests that 1,1-difluoroethene is expected to have very high mobility in soil.
Other adverse effects
no data available
SECTION 13: Disposal considerations
Disposal methods
The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
SECTION 14: Transport information
UN Number
ADR/RID: UN1959 (For reference only, please check.)
IMDG: UN1959 (For reference only, please check.)
IATA: UN1959 (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: 1,1-DIFLUOROETHYLENE (REFRIGERANT GAS R 1132a) (For reference only, please check.)
IMDG: 1,1-DIFLUOROETHYLENE (REFRIGERANT GAS R 1132a) (For reference only, please check.)
IATA: 1,1-DIFLUOROETHYLENE (REFRIGERANT GAS R 1132a) (For reference only, please check.)
Transport hazard class(es)
ADR/RID: 2.1 (For reference only, please check.)
IMDG: 2.1 (For reference only, please check.)
IATA: 2.1 (For reference only, please check.)
Packing group, if applicable
ADR/RID: (For reference only, please check.)
IMDG: (For reference only, please check.)
IATA: (For reference only, please check.)
Environmental hazards
ADR/RID: No
IMDG: No
IATA: No
Special precautions for user
no data available
Transport in bulk according to IMO instruments
no data available
SECTION 15: Regulatory information
Safety, health and environmental regulations specific for the product in question
SECTION 16: Other information
Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/
Other Information
High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death.Check oxygen content before entering the area.Vapours are uninhibited and may form polymers in the vents or flame arresters causing blockage.Do NOT use in the vicinity of a fire or a hot surface, or during welding.Check for peroxides prior to distillation; eliminate if found.Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.See ICSC 0083.