Dichlorofluoromethane SDS
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifier
- Product name： Dichlorofluoromethane
- CAS： 75-43-4
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
Not classified.
GHS label elements, including precautionary statements
-
Pictogram(s)
- Signal word Danger
H280 Contains gas under pressure; may explode if heated
none
none
none
none
Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
Substance
- Chemical name: Dichlorofluoromethane
- Common names and synonyms: Dichlorofluoromethane
- CAS number: 75-43-4
- EC number: 200-869-8
- Concentration: 100%
SECTION 4: First aid measures
Description of necessary first-aid measures
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
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
INHALATION: May cause giddiness, light-headedness, disorientation, nausea, vomiting, narcosis, cardiac dysrhythmias, hypotension, and death. SKIN: May cause frostbite or irritation. EYES: May cause irritation or cold injury. (USCG, 1999)
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
If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Specific hazards arising from the chemical
Special Hazards of Combustion Products: Toxic fumes of chlorine and fluorine may be produced in fire. (USCG, 1999)
Special protective actions for fire-fighters
In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep cylinder cool by spraying with water.
SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Personal protection: self-contained breathing apparatus. Do NOT let this chemical enter the environment. Ventilation. NEVER direct water jet on liquid.
Environmental precautions
Personal protection: self-contained breathing apparatus. Do NOT let this chemical enter the environment. Ventilation. NEVER direct water jet on liquid.
Methods and materials for containment and cleaning up
If Refrigerant 21 is spilled or leaked, the following steps should be taken: 1. Ventilate area of spill or leak. 2. If the gas is leaking, stop the flow. 3. If the liquid is spilled or leaked, allow to vaporize.
SECTION 7: Handling and storage
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
Fireproof if in building.... MATERIALS MUST BE STORED IN PLACES THAT ARE COOL ... PROVIDE ADEQUATE VENTILATION ... FURTHER PRECAUTION IS TO LOCATE ... AREA ... AWAY FROM AREAS OF FIRE HAZARD .
SECTION 8: Exposure controls/personal protection
Control parameters
TLV: 10 ppm as TWA.MAK: 43 mg/m3, 10 ppm; peak limitation category: II(2)
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 or eye protection in combination with breathing protection.
Cold-insulating gloves. Protective clothing.
Use ventilation, local exhaust or breathing protection.
no data available
SECTION 9: Physical and chemical properties and safety characteristics
-
Physical state：
Dichlorofluoromethane is a colorless, odorless gas. It is shipped as a liquid under its own vapor pressure. Contact with the liquid may cause frostbite to unprotected skin. It can asphyxiate by displacement of air. Exposure of the container to prolonged heat or fire may cause it to rupture violently and rocket.
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Colour：
Colorless heavy gas
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Odour：
... Slight ether-like odor ...
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Melting point/freezing point：
-135°C
-
Boiling point or initial boiling point and boiling range：
8.9°C
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Flammability：
Nonflammable Gas
-
Lower and upper explosion limit/flammability limit：
no data available
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Flash point：
130-132°C/3mm
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Auto-ignition temperature：
1022° F (USCG, 1999)
-
Decomposition temperature：
no data available
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pH：
no data available
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Kinematic viscosity：
0.313 cP at 25 deg C (liq); 0.0114 cP at 25 deg C, 101.3 kPa ... /gas/
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Solubility：
0.7 % at 86° F (NIOSH, 2016)
-
Partition coefficient n-octanol/water：
log Kow = 1.55
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Vapour pressure：
2217.93 mm Hg (USCG, 1999)
-
Density and/or relative density：
1.35
-
Relative vapour density：
3.82 (Air = 1)
-
Particle characteristics：
no data available
SECTION 10: Stability and reactivity
Reactivity
Decomposes on heating. This produces corrosive and highly toxic fumes (hydrogen chloride - see ICSC 0163, hydrogen fluoride - see ICSC 0283 and phosgene - see ICSC 0007). Reacts with powdered aluminium, zinc and magnesium. Reacts with acids and acid fumes. This produces highly toxic fumes of chlorides and fluorides. Attacks some forms of plastic, rubber and coatings.
Chemical stability
Condition/ contributing to instability: heat.
Possibility of hazardous reactions
WEAKLY FLAMMABLE.The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen.DICHLOROFLUOROMETHANE is incompatible with the following: Chemically-active metals such as sodium, potassium, calcium, powdered aluminum, zinc & magnesium; acid; acid fumes (NIOSH, 2016).
Conditions to avoid
no data available
Incompatible materials
Incompatibilities: Reacts violently with chemically active metals: sodium, potassium, calcium, powdered aluminum, zinc, magnesium, alkali, alkaline earth. Reacts with acids or acid fumes producing highly toxic chlorine and fluorine fumes. Attacks some forms of plastics, rubber, and coatings.
Hazardous decomposition products
When heated to decomposition it emits very toxic fumes of chloride and fluoride.
SECTION 11: Toxicological information
Acute toxicity
- Oral: no data available
- Inhalation: LC50 Rat inhalation 49,900 ppm 4 hr
- 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
The liquid may cause frostbite. The substance may cause effects on the central nervous system at high concentrations. Exposure far above the OEL could cause cardiac dysrhythmia.
STOT-repeated exposure
The substance may have effects on the liver.
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: 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
Persistence and degradability
AEROBIC: Complete degradation of dichlorofluoromethane, initially present at approximately 95 ppm, by methanotrophic bacteria occurred within approximately 19 days in soil samples collected from an agricultural field(1) when methane was added to the soil(1). In soil samples collected from a forest, complete degradation of dichlorofluoromethane, initially present at approximately 26 ppm, by methanotrophic bacteria occurred within approximately 5 days when methane was added to the soil(1). In batch experiments using soil pre-exposed to landfill gas incubated with methane and air, dichlorofluoromethane degraded with an oxidation rate 0.509 ug/g soil-hour(2). Dichlorofluoromethane, present at 11.6 mg/L, reached 0% of its theoretical BOD in 4 weeks using an activated sludge inoculum at a reported concentration of sludge of 1 drop/L in the Japanese MITI test(3).[(1) Oremland RS et al; Appl Environ Microbiol 62: 1818-21 (1996) (2) Scheutz C et al; J Environ Qual 33: 61-71 (2004) (3) NITE; Chemical Risk Information Platform (CHRIP). Biodegradation and Bioconcentration. Tokyo, Japan: Natl Inst Tech Eval. Available from, as of Dec 10, 2014: http://www.safe.nite.go.jp/english/db.html] Full text: PMC167957
Bioaccumulative potential
An estimated BCF of 5 was calculated for dichlorofluoromethane in fish(SRC), using a log Kow of 1.55(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. The BCF of dichlorofluoromethane is reported as low using carp (Cyprinus carpio) which were exposed over an 8-week period (actual BCF value not reported)(4).
Mobility in soil
Using a structure estimation method based on molecular connectivity indices(1), the Koc for dichlorofluoromethane can be estimated to be 32(SRC). According to a classification scheme(2), this estimated Koc value suggests that dichlorofluoromethane 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: UN1029 (For reference only, please check.)
IMDG: UN1029 (For reference only, please check.)
IATA: UN1029 (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: DICHLOROFLUOROMETHANE (REFRIGERANT GAS R 21) (For reference only, please check.)
IMDG: DICHLOROFLUOROMETHANE (REFRIGERANT GAS R 21) (For reference only, please check.)
IATA: DICHLOROFLUOROMETHANE (REFRIGERANT GAS R 21) (For reference only, please check.)
Transport hazard class(es)
ADR/RID: 2.2 (For reference only, please check.)
IMDG: 2.2 (For reference only, please check.)
IATA: 2.2 (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.There is no odour warning even when toxic concentrations are present.Do NOT use in the vicinity of a fire or a hot surface, or during welding.Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.