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R404A Safety Data Sheet (SDS)

Safety Data Sheet(SDS / MSDS) R125/R143a/R134a Near-azeotropic Mixture R125/R143a/R134a blend CAS Mixture(354-33-6 / 420-46-2 / 811-97-2) UN 3163 Class 2.2, non-flammable non-toxic gas

Document No.:ZJ-SDS-R404A-2026 Version:V1.0 Issue Date2026-10-20 Next review:2027-10-20 Compilation BasisGB/T 16483-2008

1 Identification of the Substance and Supplier

1.1 Product Identifier

Item Value
Chinese chemical nameR125/R143a/R134a Near-azeotropic Mixture
English NameR125/R143a/R134a blend
Trade name / synonymsR404A, R125/R143a/R134a Near-azeotropic Mixture Refrigerant
CAS No.Mixture(354-33-6 / 420-46-2 / 811-97-2)
UN No.3163(Liquefied gas, (R125/R143a/R134a 44/52/4))
UN number22062
Transport Hazard ClassificationClass 2.2, non-flammable non-toxic gas
Molecular FormulaCHF₂CF₃ / CH₃CF₃ / CH₂FCF₃( 44/52/4)
Molecular Weight97.42 g/mol
Recommended useLow temperature cold storage and, and, Low temperature.
supply classIndustrial grade / Refrigerant grade / High-purity grade (available on request)

1.2 Manufacturer / Supplier Details

Item Value
SupplierHubei Zhongjin Fluorine Chemical Co., Ltd.
English NameHubei Zhongjin Fluorine Chemical Co., Ltd.
Address302-3, Beihu Shengying Beihu Office Compound, Qingshan District, Wuhan, Hubei, China
Postal code430080
Telephone15056328442
Emailsales@zj-f.com
Request a quote forContact our sales team for quotations, lead times and third-party test reports.

1.3 Emergency Telephone Number

National chemical emergency hotline: +86-532-83889090 (24 h); supplier emergency telephone: +86 150 5632 8442.

2 Hazards Identification

2.1 GHS Classification

Hazard Classification Description
Gas under pressureLiquefied gas, transported and stored in pressure cylinders or ISO tanks.
Specific target organ toxicity - single exposure(Health hazards)Inhalation at high concentrations may cause central nervous system depression (narcotic effects) with dizziness, drowsiness and headache; very high concentrations may cause cardiac arrhythmia.
Flammable gas (where applicable)ASHRAE safety classification A1 (low toxicity, non-flammable); a release may form a flammable mixture in confined spaces.

Note: frostbite from liquid contact with skin or eyes is a physical cryogenic injury; GHS has no separate frostbite hazard class.

2.2 GHS Label Elements

GHS04steel cylinderGas under pressure
GHS07Exclamation markWarning
Item Value
Signal WordWarning
Pictogramsteel cylinder, Exclamation mark

Hazard Statements (H-codes)

  • H280 Contains gas under pressure; may explode if heated.
  • H336 May cause drowsiness or dizziness.

Precautionary Statements (P-codes)

  • P102 Read and understand all safety precautions before handling.
  • P261 Avoid breathing gas.
  • P271 Use only outdoors or in a well-ventilated area.
  • P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
  • P312 Call a poison center or doctor if you feel unwell.
  • P403 Store in a well-ventilated place.

2.3 Other Hazards

  • Near-azeotropic Mixture, Temperature glide, system.
  • Low temperature Discharge temperatureLow, compressorcarbon deposit RiskLow.
  • or frostbite.
  • ODP = 0, GWP approx. 3,922, "Kigali Amendment"control GWP HFC Mixture.

3 Composition / Information on Ingredients

3.1 Substance / Mixture

this product RefrigerantMixture,.

3.2 Composition Information

Component CAS No. Concentration (mass fraction)
R125/R143a/R134a Near-azeotropic Mixture(R404A)Mixture(354-33-6 / 420-46-2 / 811-97-2)≥ 99.5%(Premium Grade ≥ 99.9%)

3.3 Impurity Information

Impurity Premium Grade First Grade
Acidity( HCl )≤ 0.1 ppm≤ 1 ppm
Moisture≤ 5 ppm≤ 10 ppm
Evaporation Residue≤ 50 ppm≤ 100 ppm
Non-Condensable Gas(25 ℃, )≤ 1.5 %≤ 1.5 %
Chloride testPassPass

4 First-Aid Measures

4.1 Description of First-Aid Measures

General advice:. doctor Description.

Inhalation

  • fresh air,.
  • If breathing is difficult, administer oxygen.
  • ( or, ).
  • (CPR).
  • Keep the patient warm and at rest, monitor closely and seek medical attention if needed.

Skin contact (frostbite)

  • (37~40 ℃)frostbite Body Part,.
  • (>40 ℃) or (, ).
  • frostbite Body Part,.
  • and,,.
  • Cover the affected area with a sterile dressing and seek immediate medical attention.

Eye contact

  • or 15.
  • Body Part.
  • Remove contact lenses before rinsing, if present and easy to do.
  • doctor.

Ingestion

Not applicable. or, Ingestion.

4.2 Most Important Symptoms and Health Effects

  • Inhalation: dizziness, drowsiness, headache,,; and cardiac arrhythmia.
  • Skin contact: frostbite(,,, ).
  • Eye contact: frostbite,,.
  • decomposition products Inhalation: and;refrigerant decomposition products.

4.3 Notes to Physician

  • Treat symptomatically, keep the airway clear and give oxygen if needed.
  • cardiac arrhythmia.
  • class(, ).
  • frostbiteperfrostbite, 37~40 ℃, or.
  • decomposition products(, ),,.

5 Fire-Fighting Measures

5.1 Suitable Extinguishing Media

Non-flammable. Suitable extinguishing media, carbon dioxide,,,.

5.2 Specific Hazards Arising from the Substance

  • steel cylinder,; or,.
  • Value.
  • and, High temperature or.

5.3 Hazardous Combustion Products

High temperaturedecomposition products: (HF), carbon monoxide(CO), (COF₂).

5.4 Advice for Firefighters

  • Self-contained breathing apparatus(SCBA),.
  • Move containers from the fire area to open ground if safe to do so.
  • Firefighting.
  • Isolate the area and keep unauthorized personnel out.
  • Spillage Liquefied gas,.

6 Accidental Release Measures

6.1 Personal Precautions and Protective Equipment

  • Spillage,,.
  • (SCBA),, Low temperatureprotective gloves.
  • Approach from upwind.
  • Spillage.
  • or Spillage.
  • Assign an emergency liaison and arrange external support.

6.2 Environmental Precautions

  • or enclosed.
  • Ventilate the area to disperse the gas.
  • Spillageemissions, recovery.
  • Avoid release to air, water and soil.

6.3 Methods and Materials for Containment and Clean-Up

ventilation,. oxygen, asphyxiation. Spillagerecoveryrecovery;recovery,.

  • steel cylinder Spillage, steel cylinder, or Supplier.
  • If recovery is not possible, dilute with water spray while preventing water contamination.

6.4 Reference

8 (Exposure controls / personal protection) 13 (Disposal).

Special warning:Vapourlow-lying areasenclosedoxygen deficiency. enclosed or low-lying areasoxygen(≥ 19.5%),.

7 Handling and Storage

7.1 Precautions for Safe Handling

  • enclosed, ventilation or.
  • Operators must be trained, follow procedures and hold the required certification.
  • Spillage.
  • and, oxygen.
  • steel cylinder,,,,.
  • Accidental release measures equipment.
  • No smoking, eating or drinking in the workplace.
  • frostbite.
  • steel cylinder, tightness.

7.2 Conditions for Safe Storage, including Incompatibilities

  • Storage,, ventilation, 40 ℃, ignition source, heat source and.
  • steel cylinder, and,,, and.
  • and oxygen, and (,, )Flammable,.
  • and, Low 0.05 MPa.
  • Accidental release measures equipment,.
  • Apply two-person receiving and custody control.
  • Filling Ratio: ≤ 1.0 kg/L.

7.3 Specific End Use(s)

use,. R125, R143a, R134a "Kigali Amendment"control HFC, Mixturequotaphase-down.

8 Exposure Controls / Personal Protection

8.1 Occupational Exposure Limits

R143a (ACGIH TLV-TWA 1000 ppm).

Prepared in accordance with GBZ 2.1-2019"Occupational exposure limits 1: ", Occupational exposure limits,.

8.2 Monitoring Methods

Gas chromatography(GC-FID or GC-MS);;.

8.3 Engineering Controls

  • enclosed, ventilation or.
  • Provide safety showers and eyewash stations.
  • Spillage.
  • Use explosion-proof electrical equipment.

8.4 Personal Protective Equipment

Body Part Protection Required
Respiratory protection(Low)Protection;Higher(Vapour / ); or, Self-contained breathing apparatus(SCBA).
Eye protectionProtection; or Protection or /, frostbite.
Protectionprotective gloves;Low temperature(, ).
ProtectionWear standard work clothing; wear cold-protective clothing when handling liquid.
OtherInhalation at high concentrations;, or Other.

8.5 Hygiene Measures

  • Remove contaminated clothing and wash skin after work.
  • Maintain good personal hygiene.
  • Provide eyewash stations and emergency showers at the workplace.

9 Physical and Chemical Properties

9.1 Basic Physical and Chemical Properties

Item Typical Value
AppearanceColorless, transparent liquefied gas
OdorSlight ethereal odor, non-irritating
Bubble point(101.3 kPa)-46.5 ℃
(101.3 kPa)-45.7 ℃
Critical Temperature72.1 ℃
Critical Pressure3.73 MPa
Critical Densityapprox. 485 kg/m³
Vapor Pressure (25 C, absolute)1.25 MPa
Liquid Density(25 ℃)1048 kg/m³
Saturated Vapor Density(25 ℃)47.5 kg/m³
Latent heat of vaporisation (at bubble point)approx. 200 kJ/kg
Liquid Specific Heat(25 ℃)1.53 kJ/(kg·K)
Vapor Specific Heat(25 ℃, 101.3 kPa)0.85 kJ/(kg·K)
Liquid Thermal Conductivity(25 ℃)0.084 W/(m·K)
Vapor Thermal Conductivity(25 ℃)0.0145 W/(m·K)
Liquid Viscosity(25 ℃)0.15 mPa·s
Vapor Viscosity(25 ℃)0.0132 mPa·s
Surface Tension(25 ℃)7.6 mN/m
Water Solubility(25 ℃)Slightly soluble
Auto-Ignition TemperatureNot applicable (non-flammable)
Flammability Limits in Air (vol.%)None (non-flammable)
OEL (8 h TWA)1000 ppm
Ozone Depletion Potential (ODP)0
GWP (100 yr, IPCC AR5)3922
Atmospheric Lifetimeapprox. 30 years(per)
Temperature glideapprox. 0.8 ℃(Near-azeotropic)
ASHRAE Safety ClassificationA1(Low, Non-flammable)
UN TransportLiquefied gas, (R125/R143a/R134a 44/52/4)
UN number(CN)22062

9.2 Other Safety Data

Item Value
ASHRAE Safety ClassificationA1(Low, Non-flammable)
Atmospheric Lifetimeapprox. 51 ( R143a component basis)
Atmospheric Lifetimeper IPCC, and OH.
Decomposition temperature> 250 ℃ (controlled High temperature).

10 Stability and Reactivity

10.1 Reactivity

Chemically stable at ambient temperature and pressure.

10.2 Chemical Stability

Stable under normal temperature and pressure.

10.3 Possibility of Hazardous Reactions

  • High temperature(> 250 ℃), (HF), carbon monoxide(CO), (COF₂).
  • and, High temperature or.
  • and oxygenoxygen.

10.4 Conditions to Avoid

High temperature, open flames, heat source, steel cylinder,.

10.5 Incompatible Materials

(,,,, ), oxygen.

10.6 Hazardous Decomposition Products

(HF), carbon monoxide(CO), (COF₂), Other /.

10.7 Hazardous Polymerization

No polymerisation occurs.

11 Toxicological Information

11.1 Acute Toxicity

R143a, Inhalation LC50(4 hours)approx. 100,000 ppm.

11.2 Skin Corrosion / Irritation

frostbite,. GHS class: Skin corrosion / class(frostbite).

11.3 Serious Eye Damage / Irritation

frostbite.

11.4 Respiratory or Skin Sensitization

. testingdata.

11.5 Germ Cell Mutagenicity

testing(Ames testing, testing, testing).

11.6 Carcinogenicity

Carcinogenicity. IARC;ACGIH A4 class( class class);EPA D ( class class).

11.7 Reproductive Toxicity

testing Reproductive toxicity, class Reproductive toxicitydata.

11.8 STOT - Single Exposure

  • narcotic effects(Category 3): Inhalation at high concentrations central nervous system depression, dizziness, drowsiness, headache,.
  • cardiac arrhythmia, or.

11.9 STOT - Repeated Exposure

Low. Inhalationtesting.

11.10 Aspiration Hazard

Inhalation, Inhalation at high concentrations central nervous system depression. decomposition products(, ).

12 Ecological Information

12.1 Ecotoxicity

Test Species Endpoint & Result
class Acute toxicity96 h LC50 > 100 mg/L( classLow)
class Acute toxicity48 h EC50 > 100 mg/L
class72 h EC50 > 100 mg/L

12.2 Persistence and Degradability

  • Main and, Atmospheric Lifetimeapprox. approx. 51 ( R143a component basis).
  • Biodegradability: not readily biodegradable.
  • Hydrolysis: not readily hydrolysed at ambient temperature.

12.3 Bioaccumulative Potential

log P Low, Low(Low log P = 4.5).

12.4 Mobility in Soil

Water SolubilityLow,..

12.5 PBT and vPvB Assessment

PBT(Persistence, bioaccumulation and toxicity)/ vPvB(Very persistent and very bioaccumulative).

12.6 Other Adverse Environmental Effects

  • Ozone depletion potential (ODP)(ODP): 0(Relative CFC-11 = 1).
  • Global warming potential (GWP)(GWP, 100 years): 3922(Relative CO₂ = 1).
  • Large releases affect the ozone layer and global warming; strictly control emissions and prioritise recovery.

13 Disposal Considerations

13.1 Waste Treatment Methods

Waste Type Disposal Method
Product / residueemissions. recovery,;recovery Danger;High temperature,., or.
Packagingsteel cylinder Supplier or, or;steel cylinder, per Danger.

13.2 Disposal Precautions

  • Regulations, "".
  • Protection( 8 ).
  • Ensure adequate ventilation to prevent asphyxiation.
  • Disposal,.

14 Transport Information

14.1 UN Number

3163(Liquefied gas, (R125/R143a/R134a 44/52/4))

14.2 UN Proper Shipping Name

Item Value
ChineseLiquefied gas
EnglishR125/R143a/R134a 44/52/4

14.3 Transport Hazard Class

Class 2.2, non-flammable non-toxic gas

14.4 Packing Group

Not applicable( 2 class Packing group).

14.5 Transport Labels

  • Main Hazard: Flammable.
  • Hazard:.

14.6 Packaging Method

  • (steel cylinder), steel cylinder GB 5099"".
  • Packaging: 10.9kg disposable cylinder, 400kg T steel cylinder, ISO ISO tank.
  • Filling Ratio: ≤ 1.0 kg/L.
  • steel cylinder Storage and Transport,.

14.7 Special Precautions by Transport Mode

Transport Mode Special Requirements
Transport(GB/T 12268)Transport DangerTransport;steel cylinder;steel cylinder,,;Transport,;per,.
Transport(Danger Transport)Transport, steel cylinder or.
Transport(IMDG )UN 3163, Class 2.2, non-flammable non-toxic gas;Marine pollutant:; class: A( or ).
Transport(ICAO/IATA DGR)UN 3163, Class 2.2, non-flammable non-toxic gas; / Transport(Packaging).

14.8 Transport Precautions

  • and oxygen,,.
  • Transport Accidental release measures equipment.
  • Transport,.
  • Transport,, High temperature.
  • Keep away from ignition sources, heat and high-temperature areas during stops.
  • Vehicles must be fitted with exhaust flame arresters.
  • steel cylinder.

15 Regulatory Information

15.1 Chinese Regulations

  • Regulations on the Safety Management of Hazardous Chemicals (State Council Decree No. 591)
  • Catalogue of Hazardous Chemicals (2015 edition): listed
  • GB 30000 series: GHS classification and labelling
  • GB/T 16483-2008: SDS preparation standard
  • GBZ 2.1-2019: occupational exposure limits for chemical agents
  • ""(TSG 23-2021)
  • "Danger Transport": Danger Transport
  • Air Pollution Prevention and Control Law of the PRC: greenhouse gas controls
  • "": and Danger
  • GHS( class) 8
  • "Kigali Amendment"HFC quota: controlled
  • EU F-Gas Regulations: R404a new equipmentrestricted, R449A, R452A

15.2 International Regulations

  • EU REACH Regulations(EC 1907/2006) and CLP Regulations(EC 1272/2008)
  • EU F-Gas Regulations(EC 517/2014): control
  • EPA SNAP / OSHA HCS 2012 / DOT 49 CFR
  • ADR/RID /Danger Transport;IMDG Code;IATA DGR Transport

16 Other Information

16.1 References

  • NIOSH Pocket Guide to Chemical Hazards
  • International Chemical Safety Card (ICSC)
  • NOAA CAMEO Chemicals Database
  • PubChem Compound Database
  • ASHRAE Handbook — Refrigeration Systems and Applications
  • GB/T 16483-2008"Description Value Item"
  • GB 30000 " class"
  • "Montreal Protocol"Kigali Amendmentapprox.

16.2 Abbreviations and Acronyms

Abbreviation Full Name
SDS / MSDSDescription / Description
GHSclass
CAS(No.)
UN(UN number)
ODPOzone depletion potential (ODP)
GWPGlobal warming potential (GWP)
LC50LC50
LD50LD50
TLV-TWATLV-TWA
PELPermissible exposure limit
SCBASelf-contained breathing apparatus
PBTPersistence, bioaccumulation and toxicity
vPvBVery persistent and very bioaccumulative
HCFCHCFC
ODSOzone-depleting substance
HFOHFO
A2LLow, Flammable(ASHRAE 34 / ISO 817)
A3Low, Flammable(ASHRAE 34 / ISO 817)

16.3 Disclaimer

Safety Data Sheet (SDS)Prepared in accordance with GB/T 16483-2008 GHS Prepared by,,., Specification or. Regulations, Protection. Description or, Prepared by. data Regulations,.

| Reviewed by: | Approved by: | Hubei Zhongjin Fluorine Chemical Co., Ltd.

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SDS R404A Prepared in accordance with., Specification(TDS) or Batch, or sales team.