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    1,1,1-Trifluoroethane
    CAS No.: 420-46-2 Formula: C2H3F3 Molecular Weight: 84.04040
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    1,1,1-Trifluoroethane

    CAS No.: 420-46-2 Formula: C2H3F3 Molecular Weight: 84.04040
    Suppliers: All (13) China Suppliers (13) Price Available (1) Contractor (2)

    Description

    1,1,1-Trifluoroethane, or R-143a or simply trifluoroethane, is a hydrofluorocarbon compound that is a clear, colorless gas. It should not be confused with the much more commonly used gas R-134a or the isomeric compound 1,1,2-trifluoroethane.
    It has a critical temperature of 73 °C.
    It is used as a refrigerant either by itself or more commonly as a component of blended mixtures. Unlike CFCs used as refrigerants, trifluoroethane has no chlorine atoms and is therefore not an ozone-depleting chemical, though its high chemical stability and infra-red absorbency make it a potent greenhouse gas with a global warming potential of 4300, higher than many other commonly used HFC refrigerants.
    Trifluoroethane is also used as a propellant in canned air products used to clean electronic equipment.

    Basic Info

    Chemical Name 1,1,1-Trifluoroethane
    Synonyms

    CFC143A; CH3CF3; Ethane, 1,1,1-trifluoro-; R143; HFC143a; Fron143a; F143A; r143a; FC-143A; 2,2,2-trifluoroethane; Expand

    CAS No. 420-46-2
    Molecular Formula C2H3F3
    Molecular Weight 84.04040
    PSA 0.00000
    LogP 1.56860

    Numbering system

    UNII 84581C5PRN

    Properties

    Appearance & Physical State Clear, colorless liquid and vapor
    Density 0.94
    Boiling Point -47oC
    Melting Point -111oC
    Stability Stable. Highly flammable; gas-air mixtures are explosive.
    Storage Condition Store in a clean, dry place. Keep cool.

    Safety Info

    Hazard Class 2.1
    Safety Statements S16-S33
    HS Code 2903399090
    RIDADR UN 2035
    Risk Statements R11
    Hazard Codes F
    SDS 1.0 Expand

    SDS 1.0

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    SAFETY DATA SHEETS

    According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

    Version: 1.0

    Creation Date: Aug 14, 2017

    Revision Date: Aug 14, 2017

    1.Identification

    1.1 GHS Product identifier

    Product name 1,1,1-Trifluoroethane

    1.2 Other means of identification

    Product number -
    Other names CH3CF3

    1.3 Recommended use of the chemical and restrictions on use

    Identified uses For industry use only. Functional fluids (closed systems)
    Uses advised against no data available

    1.4 Supplier's details

    Company MOLBASE (Shanghai) Biotechnology Co., Ltd.
    Address Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road,
    Xuhui District, Shanghai, China
    Telephone +86(21)64956998
    Fax +86(21)54365166

    1.5 Emergency phone number

    Emergency phone number +86-400-6021-666
    Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

    2.Hazard identification

    2.1 Classification of the substance or mixture

    Flammable gases, Category 1

    Gases under pressure: Liquefied gas

    2.2 GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Danger

    Hazard statement(s)

    H220 Extremely flammable gas

    H280 Contains gas under pressure; may explode if heated

    Precautionary statement(s)
    Prevention

    P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

    Response

    P377 Leaking gas fire: Do not extinguish, unless leak can be stopped safely.

    P381 In case of leakage, eliminate all ignition sources.

    Storage

    P403 Store in a well-ventilated place.

    P410+P403 Protect from sunlight. Store in a well-ventilated place.

    Disposal

    none

    2.3 Other hazards which do not result in classification

    none

    3.Composition/information on ingredients

    3.1 Substances

    Chemical name Common names and synonyms CAS number EC number Concentration
    1,1,1-Trifluoroethane 1,1,1-Trifluoroethane 420-46-2 none 100%

    4.First-aid measures

    4.1 Description of necessary first-aid measures

    General advice

    Consult a physician. Show this safety data sheet to the doctor in attendance.

    If inhaled

    If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

    In case of skin contact

    Wash off with soap and plenty of water. Consult a physician.

    In case of eye contact

    Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.

    If swallowed

    Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

    4.2 Most important symptoms/effects, 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)

    4.3 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 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/

    5.Fire-fighting measures

    5.1 Extinguishing media

    Suitable 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.

    5.2 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)

    5.3 Special protective actions for fire-fighters

    Wear self-contained breathing apparatus for firefighting if necessary.

    6.Accidental release measures

    6.1 Personal precautions, protective equipment and emergency procedures

    Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

    6.2 Environmental precautions

    Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.

    6.3 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.

    7.Handling and storage

    7.1 Precautions for safe handling

    Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

    7.2 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.

    8.Exposure controls/personal protection

    8.1 Control parameters

    Occupational Exposure limit values

    no data available

    Biological limit values

    no data available

    8.2 Appropriate engineering controls

    Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

    8.3 Individual protection measures, such as personal protective equipment (PPE)

    Eye/face protection

    Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

    Skin protection

    Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. 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.

    Respiratory protection

    Wear dust mask when handling large quantities.

    Thermal hazards

    no data available

    9.Physical and chemical properties

    Physical state Clear, colorless liquid and vapor
    Colour Colorless gas
    Odour no data available
    Melting point/ freezing point -111oC
    Boiling point or initial boiling point and boiling range -47oC
    Flammability no data available
    Lower and upper explosion limit / flammability limit no data available
    Flash point no data available
    Auto-ignition temperature no data available
    Decomposition temperature no data available
    pH no data available
    Kinematic viscosity no data available
    Solubility In water, 548 mg/L at 25°C (est)
    Partition coefficient n-octanol/water (log value) log Kow = 1.74 (est)
    Vapour pressure 1262 kPa at 298.165 deg K (9465 mm Hg at 25°C)
    Density and/or relative density 0.94
    Relative vapour density 3.1 (Air = 1)
    Particle characteristics no data available

    10.Stability and reactivity

    10.1 Reactivity

    no data available

    10.2 Chemical stability

    Stable under recommended storage conditions.

    10.3 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.

    10.4 Conditions to avoid

    no data available

    10.5 Incompatible materials

    no data available

    10.6 Hazardous decomposition products

    When heated to decomposition it emits toxic vapors of /flouride/.

    11.Toxicological information

    Acute toxicity

    • Oral: no data available
    • Inhalation: no data available
    • 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

    12.Ecological information

    12.1 Toxicity

    • Toxicity to fish: no data available
    • Toxicity to daphnia and other aquatic invertebrates: no data available
    • Toxicity to algae: no data available
    • Toxicity to microorganisms: no data available

    12.2 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).

    12.3 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).

    12.4 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.

    12.5 Other adverse effects

    no data available

    13.Disposal considerations

    13.1 Disposal methods

    Product

    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.

    Contaminated packaging

    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.

    14.Transport information

    14.1 UN Number

    ADR/RID: UN2035 IMDG: UN2035 IATA: UN2035

    14.2 UN Proper Shipping Name

    ADR/RID: 1,1,1-TRIFLUOROETHANE (REFRIGERANT GAS R 143a)
    IMDG: 1,1,1-TRIFLUOROETHANE (REFRIGERANT GAS R 143a)
    IATA: 1,1,1-TRIFLUOROETHANE (REFRIGERANT GAS R 143a)

    14.3 Transport hazard class(es)

    ADR/RID: 2.1 IMDG: 2.1 IATA: 2.1

    14.4 Packing group, if applicable

    ADR/RID: unknown IMDG: unknown IATA: unknown

    14.5 Environmental hazards

    ADR/RID: no IMDG: no IATA: no

    14.6 Special precautions for user

    no data available

    14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

    no data available

    15.Regulatory information

    15.1 Safety, health and environmental regulations specific for the product in question

    Chemical name Common names and synonyms CAS number EC number
    1,1,1-Trifluoroethane 1,1,1-Trifluoroethane 420-46-2 none
    European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
    EC Inventory Listed.
    United States Toxic Substances Control Act (TSCA) Inventory Listed.
    China Catalog of Hazardous chemicals 2015 Listed.
    New Zealand Inventory of Chemicals (NZIoC) Listed.
    Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
    Vietnam National Chemical Inventory Listed.
    Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

    16.Other information

    Information on revision

    Creation Date Aug 14, 2017
    Revision Date Aug 14, 2017

    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/

    Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.
    1H NMR : PredictExpand

    NMR Spectrum 1H NMR : Predict

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    Mass spectrum (electron ionization)Expand
    Exposure Route Type of Test Species Observed Dose/Duration Toxic Effects
    Inhalation LC50 - Lethal concentration, 50 percent kill Rodent - rat >54 pph/4H 1.Nutritional and Gross Metabolic-weight loss or decreased weight gain
    Inhalation TCLo - Lowest published toxic concentration Rodent - rat 2000 ppm/6H,female 6-15 day(s) after conception 1.Reproductive-Effects on Embryo or Fetus-fetotoxicity (except death, e.g., stunted fetus)
    - Mutation in microorganisms - 50 pph/48H -
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