1,1,1-Trifluoroethane
Product identifier
- Product name: 1,1,1-Trifluoroethane
- CBnumber: CB6853611
- CAS: 420-46-2
- EINECS Number: 206-996-5
- Synonyms: R143A,1,1,1-trifluoroethane
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
- Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
- Telephone: 400-158-6606
Classification of the substance or mixture
Flammable gases, Category 1A, Flammable gas
Gases under pressure: Liquefied gas
Label elements
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.
P410+P403 Protect from sunlight. Store in a well-ventilated place.
none
Other hazards
no data available
Substance
- Product name: 1,1,1-Trifluoroethane
- Synonyms: R143A,1,1,1-trifluoroethane
- CAS: 420-46-2
- EC number: 206-996-5
- MF: C2H3F3
- MW: 84.04
Description of first aid measures
If inhaledMove the victim into fresh air. If breathing is difficult, give oxygen. If not breathing, give artificial respiration and consult a doctor immediately. Do not use mouth to mouth resuscitation if the victim ingested or inhaled the chemical.
Take off contaminated clothing immediately. Wash off with soap and plenty of water. Consult a doctor.
Rinse with pure water for at least 15 minutes. Consult a doctor.
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 and effects, both acute and delayed
Excerpt from ERG Guide 115 [Gases - Flammable (Including Refrigerated Liquids)]: Vapors may cause dizziness or asphyxiation without warning. Some may be irritating 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 any immediate medical attention and special treatment needed
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 if 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
Extinguishing media
DO NOT EXTINGUISH A LEAKING GAS FIRE UNLESS LEAK CAN BE STOPPED. ... Small fire: Dry chemical or CO2. Large fire: Water spray or fog. Move containers from fire area if you can do it without risk. Fire involving tanks: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Do not direct water at source of leak or safety devices; icing may occur. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn.
Specific Hazards Arising from the Chemical
Excerpt from ERG Guide 115 [Gases - Flammable (Including Refrigerated Liquids)]: EXTREMELY FLAMMABLE. Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air. Vapors from liquefied gas are initially heavier than air and spread along ground. CAUTION: Hydrogen (UN1049), Deuterium (UN1957), Hydrogen, refrigerated liquid (UN1966) and Methane (UN1971) are lighter than air and will rise. Hydrogen and Deuterium fires are difficult to detect since they burn with an invisible flame. Use an alternate method of detection (thermal camera, broom handle, etc.) 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)
Advice for firefighters
Wear self-contained breathing apparatus for firefighting if necessary.
NFPA 704
| HEALTH | 1 | Exposure would cause irritation with only minor residual injury (e.g. acetone, sodium bromate, potassium chloride) | |
| FIRE | 4 | Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Includes pyrophoric substances. Flash point below room temperature at 22.8 °C (73 °F). (e.g. acetylene, propane, hydrogen gas) | |
| REACT | 0 | Normally stable, even under fire exposure conditions, and is not reactive with water (e.g. helium,N2) | |
| SPEC. HAZ. |
Personal precautions, protective equipment and emergency procedures
Avoid dust formation. Avoid breathing mist, gas or vapours.Avoid contacting with skin and eye. Use personal protective equipment.Wear chemical impermeable gloves. Ensure adequate ventilation.Remove all sources of ignition. Evacuate personnel to safe areas.Keep people away from and upwind of spill/leak.
Environmental precautions
Prevent further spillage or leakage if it is safe to do so. Do not let the chemical enter drains. Discharge into the environment must be avoided.
Methods and materials for containment and cleaning up
As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions. Large spill: Consider initial downwind evacuation for at least 800 meters (1/2 mile). Fire: If tank, rail car or tank truck is involved in a fire, isolate for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions.
Precautions for safe handling
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
Store separately from all other flammable materials. ... Store in tightly closed containers in a cool, well-ventilated area. Outdoor or detached storage is recommended. Sources of ignition, such as smoking and open flames, are prohibited where trifluoroethane is used, handled, or stored in a manner that could create a potential fire or explosion hazard.
Control parameters
Occupational Exposure limit values| Component | 1,1,1-trifluoroethane | |||
|---|---|---|---|---|
| CAS No. | 420-46-2 | |||
| Limit value - Eight hours | Limit value - Short term | |||
| ppm | mg/m3 | ppm | mg/m3 | |
| Latvia | ? | 3000 | ? | ? |
| Sweden | 500 | 1750 | 750 (1) | 2625 (1) |
| Remarks | ||||
| Sweden | (1) 15 minutes average value | |||
no data available
Exposure 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
Eye/face protectionWear tightly fitting safety goggles with side-shields conforming to EN 166(EU) or NIOSH (US).
Wear fire/flame resistant and impervious clothing. Handle with gloves. Gloves must be inspected prior to use. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.
If the exposure limits are exceeded, irritation or other symptoms are experienced, use a full-face respirator.
no data available
Information on basic physicochemical properties
- Physical state
Gaseous. Liquified gas.
- Colour
Colorless.
- Odour
no data available
- Melting point/freezing point
Ca. -111.3 °C. Atm. press.:Ca. 1 atm.
- Boiling point or initial boiling point and boiling range
-47.4 °C. Atm. press.:1 atm.;-46 °C. Atm. press.:1 atm.
- Flammability
no data available
- Lower and upper explosion limit/flammability limit
no data available
- Flash point
no data available
- Auto-ignition temperature
750 °C. Atm. press.:1 atm.
- Decomposition temperature
no data available
- pH
no data available
- Kinematic viscosity
no data available
- Solubility
In water, 548 mg/L at 25 deg C (est)
- Partition coefficient n-octanol/water
log Pow = >= 1.06 - < 1.35. Remarks:LogKow is argued to be between 1.06 (experimental value for HFC-134 a) and 1.35 (experimental value for HFC-245 fa); it is likely to be (much) closer to 1.06 than to 1.35. Most appropriate value is stated to be 1.06.
- Vapour pressure
1 262 kPa. Temperature:25 °C.
- Density and/or relative density
1.18 g/cm3. Temperature:-50 °C.
- Relative vapour density
3.1 (Air = 1)
- Particle characteristics
no data available
Reactivity
no data available
Chemical stability
no data available
Possibility of hazardous reactions
Extremely flammable. Will be easily ignited by heat, sparks or flames.Halogenated aliphatic compounds, such as 1,1,1-TRIFLUOROETHANE, are moderately or very reactive. Halogenated organics generally become less reactive as more of their hydrogen atoms are replaced with halogen atoms. Low molecular weight haloalkanes are highly flammable and can react with some metals to form dangerous products. Materials in this group are incompatible with strong oxidizing and reducing agents. Also, they are incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides.
Conditions to avoid
no data available
Incompatible materials
no data available
Hazardous decomposition products
When heated to decomposition it emits toxic vapors of /flouride/.
Acute toxicity
- Oral: no data available
- Inhalation: LC0 - rat (male/female) - > 591 000 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 data available
Reproductive toxicity
no data available
STOT-single exposure
no data available
STOT-repeated exposure
no data available
Aspiration hazard
no data available
Toxicity
- Toxicity to fish: LC10 - Oncorhynchus mykiss (previous name: Salmo gairdneri) - ca. 40 mg/L - 96 h. Remarks:1 fish died at 72 hrs.
- Toxicity to daphnia and other aquatic invertebrates: 80% immobility - Daphnia magna - 390 mg/L - 48 h.
- Toxicity to algae: EC50 - ca. 71 mg/L - 72 h.
- Toxicity to microorganisms: EC0 - Pseudomonas putida - > 730 mg/L - 6 h.
Persistence and degradability
AEROBIC: Based on the analog data for 1,1-dichloro-1-fluoroethane (HCFC-141b), 1,1,1-trifluoroethane is considered to be not readily biodegradable. In general, low molecular weight halocarbons are not readily degradable(1).
Bioaccumulative potential
An estimated BCF of 6.5 was calculated in fish for 1,1,1-trifluoroethane(SRC), using an estimated log Kow of 1.74(1) and a regression-derived equation(1). According to a classification scheme(2), 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 1,1,1-trifluoroethane can be estimated to be 44(SRC). According to a classification scheme(2), this estimated Koc value suggests that 1,1,1-trifluoroethane is expected to have very high mobility in soil.
Other adverse effects
no data available
Disposal methods
ProductThe 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.
UN Number
ADR/RID: UN2035 (For reference only, please check.)
IMDG: UN2035 (For reference only, please check.)
IATA: UN2035 (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: 1,1,1-TRIFLUOROETHANE (REFRIGERANT GAS R 143a) (For reference only, please check.)
IMDG: 1,1,1-TRIFLUOROETHANE (REFRIGERANT GAS R 143a) (For reference only, please check.)
IATA: 1,1,1-TRIFLUOROETHANE (REFRIGERANT GAS R 143a) (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
Safety, health and environmental regulations specific for the product in question
European Inventory of Existing Commercial Chemical Substances (EINECS)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/
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.