1-Chloro-1,1-difluoroethane Safety Data Sheets
SAFETY DATA SHEETS
According to the UN GHS revision 8
SECTION 1: Identification
1.1 GHS Product identifier
| Product name | 1-chloro-1,1-difluoroethane |
|---|
1.2 Other means of identification
| Product number | - |
|---|---|
| Other names | cfc142b; FC 142b; 1,1-difluoro-1-chloroethane |
1.3 Recommended use of the chemical and restrictions on use
| Identified uses | Functional fluids (closed systems),Intermediates,Propellants and blowing agents |
|---|---|
| Uses advised against | no data available |
1.4 Supplier's details
| Company | Echemi.com |
|---|---|
| Address | Echemi.com |
| Telephone | Echemi.com |
1.5 Emergency phone number
| Emergency phone number | Echemi.com |
|---|---|
| Service hours | Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours). |
SECTION 2: Hazard identification
2.1 Classification of the substance or mixture
Flammable gases, Category 1A, Flammable gas
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 3
Hazardous to the ozone layer, Category 1
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 H412 Harmful to aquatic life with long lasting effects H420 Harms public health and the environment by destroying ozone in the upper atmosphere |
| Precautionary statement(s) | |
| Prevention | P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P273 Avoid release to the environment. |
| 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. |
| Disposal | P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal. P502 Refer to manufacturer or supplier for information on recovery or recycling |
2.3 Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
3.1 Substances
| Chemical name | Common names and synonyms | CAS number | EC number | Concentration |
|---|---|---|---|---|
| 1-chloro-1,1-difluoroethane | 1-chloro-1,1-difluoroethane | 75-68-3 | 200-891-8 | 100% |
SECTION 4: First-aid measures
4.1 Description of necessary first-aid measures
If inhaled
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Following skin contact
ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention .
Following eye contact
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Following ingestion
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.
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
In persons who are intoxicated with fluorocarbons, steps can be taken to lessen the risk of arrhythmias. ... Before evaluation at the hospital, patients should be advised to avoid strenuous exercise. In the hospital, patients can be placed in a quiet, nonthreatening environment and sedated if necessary. If hypoxic, oxygen should be administered and metabolic abnormalities corrected. Sympathomimetic drugs should be avoided. Ventricular arrhythmias are best treated with beta-blocking agents. Fluorocarbons
SECTION 5: Fire-fighting measures
5.1 Suitable extinguishing media
This chemical is a flammable gas. Poisonous gases including phosgene, hydrogen fluoride, hydrogen chloride, and chlorine are produced in fire. Use dry chemical, carbon dioxide, or foam extinguishers. 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 ...
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
Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out. In other cases extinguish with water spray. In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position.
SECTION 6: Accidental release measures
6.1 Personal precautions, protective equipment and emergency procedures
Evacuate danger area! Consult an expert! Ventilation. Remove all ignition sources. NEVER direct water jet on liquid. Personal protection: chemical protection suit including self-contained breathing apparatus.
6.2 Environmental precautions
Evacuate danger area! Consult an expert! Ventilation. Remove all ignition sources. NEVER direct water jet on liquid. Personal protection: chemical protection suit including self-contained breathing apparatus.
6.3 Methods and materials for containment and cleaning up
Evacuate and restrict persons not wearing protective equipment from area for leak until clean-up is complete. Remove all ignition sources. Establish forced ventilation to keep levels below explosive limit. Stop flow of gas. If source of leak is a cylinder and the leak cannot be stopped in place, remove the leaking cylinder to a safe place in the open air and repair leak or allow cylinder to empty. Keep chlorodifluoroethane out of a confined space, such as a sewer, because of the possibility of an explosion, unless the sewer is designed to prevent the build-up of explosive concentrations. It may be necessary to contain and dispose of this chemical as a hazardous waste. If material or contaminated runoff enters waterways, notify downstream users of potentially contaminated waters ...
SECTION 7: Handling and storage
7.1 Precautions for safe handling
NO open flames, NO sparks and NO smoking. Closed system, ventilation, explosion-proof electrical equipment and lighting. 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.
7.2 Conditions for safe storage, including any incompatibilities
Fireproof. Cool.Chlorodifluoroethane must be stored to avoid contact with oxidizers (such as perchlorates, peroxides, permanganates, chlorates, and nitrates) since violent reactions occur. Detached or outside storage is preferred. Metal containers involving the transfer of this chemical should be grounded and bonded. Where possible, automatically pump liquid from drums or other storage containers to process containers. Drums must be equipped with self-closing valves, pressure vacuum bungs, and flame arresters. Use only non-sparking tools and equipment, especially when opening and closing containers of this chemical. 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 ...
SECTION 8: Exposure controls/personal protection
8.1 Control parameters
Occupational Exposure limit values
MAK: 4200 mg/m3, 1000 ppm; peak limitation category: II(8); pregnancy risk group: D
Biological limit values
no data available
8.2 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.
8.3 Individual protection measures, such as personal protective equipment (PPE)
Eye/face protection
Wear safety goggles or eye protection in combination with breathing protection.
Skin protection
Cold-insulating gloves.
Respiratory protection
Use ventilation.
Thermal hazards
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 | -130.8 °C. Atm. press.:101.325 kPa. Remarks:In absence of indication in the Handbook, the pressure is assumed to be the normal atmospheric pressure. |
| Boiling point or initial boiling point and boiling range | -9.2 °C. Atm. press.:1 030 hPa. |
| Flammability | Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire. |
| Lower and upper explosion limit/flammability limit | Lower flammable limit: 6.2% by volume; Upper flammable limit: 17.9% by volume |
| Flash point | Flammable gas |
| Auto-ignition temperature | 625 °C. Atm. press.:998 mBar. |
| Decomposition temperature | no data available |
| pH | no data available |
| Kinematic viscosity | Gas = 0.01099 cP at 25 deg C; Liquid = 0.453 cP at -20.9 deg C |
| Solubility | Insoluble in water; sol in benzene |
| Partition coefficient n-octanol/water | log Pow = 2.05. Temperature:20 °C. |
| Vapour pressure | 339 kPa. Temperature:20 °C. |
| Density and/or relative density | 1.108 |
| Relative vapour density | 3.49 (vs air) |
| Particle characteristics | no data available |
SECTION 10: Stability and reactivity
10.1 Reactivity
Decomposes on burning. This produces toxic and corrosive gases including hydrogen chloride and hydrogen fluoride. Reacts violently with oxidants. This generates fire hazard.
10.2 Chemical stability
no data available
10.3 Possibility of hazardous reactions
Flammable gas.The 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.1-CHLORO-1,1-DIFLUOROETHANE is chemically inert in many situations, but can react violently with strong reducing agents such as the very active metals and the active metals. Can react with strong oxidizing agents or weaker oxidizing agents under extremes of temperature.
10.4 Conditions to avoid
no data available
10.5 Incompatible materials
Can react vigorously with oxidizing materials.
10.6 Hazardous decomposition products
When heated to decomposition, emits toxic fumes of ... /hydrogen fluoride and hydrogen chloride/.
SECTION 11: Toxicological information
Acute toxicity
- Oral: no data available
- Inhalation: LC50 - rat (male/female) - > 400 000 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
Rapid evaporation of the liquid may cause frostbite. The substance may cause effects on the cardiovascular 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
12.1 Toxicity
- Toxicity to fish: LC50 - Poecilia reticulata - 220 mg/L - 96 h.
- Toxicity to daphnia and other aquatic invertebrates: EC50 - Daphnia magna - 160 mg/L - 48 h.
- Toxicity to algae: EC50 growth rate - Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum) - 96.6 mg/L - 96 h.
- Toxicity to microorganisms: various bacteria.
12.2 Persistence and degradability
1-Chloro-1,1-difluoroethane did not biodegrade using sewage sludge(1), Methylosinus trichosporium, M. vaccae JOB5, ENV2040 nor ENV2041 strains of organisms(2).
12.3 Bioaccumulative potential
An estimated BCF of 10 was calculated in fish for 1-chloro-1,1-difluoroethane(SRC), using an estimated log Kow of 2.05(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).
12.4 Mobility in soil
Using a structure estimation method based on molecular connectivity indices(1), the Koc of 1-chloro-1,1-difluoroethane can be estimated to be 40(SRC). According to a classification scheme(2), this estimated Koc value suggests that 1-chloro-1,1-difluoroethane is expected to have very high mobility in soil.
12.5 Other adverse effects
no data available
SECTION 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.
SECTION 14: Transport information
14.1 UN Number
| ADR/RID: UN2517 (For reference only, please check.) | IMDG: UN2517 (For reference only, please check.) | IATA: UN2517 (For reference only, please check.) |
14.2 UN Proper Shipping Name
| ADR/RID: 1-CHLORO-1,1- DIFLUOROETHANE (REFRIGERANT GAS R 142b) (For reference only, please check.) | IMDG: 1-CHLORO-1,1- DIFLUOROETHANE (REFRIGERANT GAS R 142b) (For reference only, please check.) | IATA: 1-CHLORO-1,1- DIFLUOROETHANE (REFRIGERANT GAS R 142b) (For reference only, please check.) |
14.3 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.) |
14.4 Packing group, if applicable
| ADR/RID: (For reference only, please check.) | IMDG: (For reference only, please check.) | IATA: (For reference only, please check.) |
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 IMO instruments
no data available
SECTION 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-chloro-1,1-difluoroethane | 1-chloro-1,1-difluoroethane | 75-68-3 | 200-891-8 |
| 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. | ||
| Korea Existing Chemicals List (KECL) | Listed. | ||
SECTION 16: Other information
Information on revision
| Creation Date | July 15, 2019 |
|---|---|
| Revision Date | July 15, 2019 |
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 area.Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.
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.
1-Chloro-1,1-difluoroethane is included in Propellant category.
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