Sodium Thiosulphate Aqueous Solutions - 0.2%

1. Identification

Product Identifiers

Product Name

Sodium Thiosulphate Aqueous Solutions - 0.2%

Other Names

Nil

Product Number(s)

26123-07, EMS26123-07

CAS Number

7732-18-5

Recommended use of the chemical and restriction on use

Company Details

Emergency Contact Details

2. Hazards Identification

Classification of the substance or mixture

Label Elements

Signal Words

Warning

Hazard Statement(s)

Causes serious eye irritation.

Precautionary Statement(s)

• Wash thoroughly after handling.
• Wear eye protection / face protection.
• If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
• Continue rinsing.
• If eye irritation persists: Get medical advice/attention.

Primary route(s) of entry

Human Health

Inhalation

Not applicable

Ingestion

Not applicable

Eyes

Wear eye protection / face protection

Skin

Wash thoroughly after handling.

3. Composition / Information on Ingredients

4. First Aid Measures

Ingestion

If symptoms persist consult doctor.

Inhalation

Supply fresh air; consult doctor in case of complaints

Skin Contact

Generally the product does not irritate the skin.

Eye Contact

Rinse opened eye for several minutes under running water. If symptoms persist, consult a doctor.

Other Information

• Most important symptoms and effects, both acute and delayed No further relevant information available.
• Indication of any immediate medical attention and special treatment needed
• No further relevant information available.

5. Firefighting Measures

Suitable extinguishing equipment

Fire

Use fire fighting measures that suit the environment.

HAZCHEM

No further relevant information available.

Special protective equipment and precautions for fire fighters

6. Accidental Release Measures

Personal precautions, protective equipment and emergency procedures

Not required.

Environmental precautions

No special measures required.

Methods and materials for containment and clean up

• Absorb with liquid-binding material (sand, diatomite, acid binders, universal binders, sawdust).
• Ensure adequate ventilation.

7. Handling and Storage

Precautions for safe handling

• Ensure good ventilation/exhaustion at the workplace.
• Prevent formation of aerosols.
• Information about protection against explosions and fires: No special measures required.

Conditions for safe storage

• Requirements to be met by storerooms and receptacles: No special requirements.
• Information about storage in one common storage facility: Not required.
• Further information about storage conditions: Keep receptacle tightly sealed.
• Specific end use(s) No further relevant information available.

8. Exposure Controls / Personal Protection

Exposure Standards

Engineering controls

• Components with limit values that require monitoring at the workplace: Not required.
• Additional information: The lists that were valid during the creation were used as basis.
• Exposure controls
• Appropriate engineering controls No further data; see section 7.

Personal protective equipment

Eye and face protection

Tightly sealed goggles

Body protection

• Protection of hands:
• The glove material has to be impermeable and resistant to the product/ the substance/ the preparation.
• Due to missing tests no recommendation to the glove material can be given for the product/ the preparation/ the
• chemical mixture.
• Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation
• Material of gloves
• The selection of the suitable gloves does not only depend on the material, but also on further marks of quality and
• varies from manufacturer to manufacturer.
• Penetration time of glove material
• The exact break through time has to be found out by the manufacturer of the protective gloves and has to be
• observed.

Respiratory protection

• In case of brief exposure or low pollution use respiratory filter device. In case of intensive or longer exposure use
• respiratory protective device that is independent of circulating air.

9. Physical and Chemical Properties

General information

Appearance

Clear Liquid

Odour

odourless

pH

Not determined.

Vapour Pressure

Not determined.

Density

at 20 °C (68 °F): 1.01 g/cm³ (8.42845 lbs/gal)

Boiling Point

100 °C (212 °F)

Melting Point

0 °C (32 °F)

Solubility

Not applicable

Specific Gravity of Density

Not applicable

Flash Point

Not determined.

Flammable (Explosive) Limits

Not applicable

Ignition Temperature

Product does not present an explosion hazard.

Formula

Na₂S₂O?·5H₂O

10. Stability and Reactivity

Reactivity

• No further relevant information available.
• Hazardous decomposition products: No dangerous decomposition products known.

Chemical stability

No decomposition if used according to specifications.

Possibility of hazardous reactions

No dangerous reactions known

Conditions to avoid

No further relevant information available

Incompatible materials

: No further relevant information available.

11. Toxicological Information

Acute effects

• No sensitizing effects known.
• Interactive effects No interactive effects between components are known

Eye contact

Irritating effect.

Skin contact

No irritant effect.

12. Ecological Information

Ecotoxicity

No further relevant information available.

Persistence and degradability

No further relevant information available.

Bioaccumulative potential

No further relevant information available.

Other adverse effects

• Mobility in soil No further relevant information available.
• Results of PBT and vPvB assessment
• PBT: Not applicable.
• vPvB: Not applicable.
• Other adverse effects
• Additional ecological information:
• General notes: Not hazardous for water.

13. Disposal Considerations

General information

14. Transport Information

ADG label required

HAZCHEM

No further relevant information available.

UN Number

Void

Proper shipping name

Void

Transport hazard class

Void

Packing group

Void

Environmental hazard

Not applicable.

Special precautions for users

Not applicable.

Additional information

Not applicable.

15. Regulatory Information

Poisons Schedule Number

• Safety, health and environmental regulations/legislation specific for the substance or mixture
• No further relevant information available.

Other Information

• Signal word Warning
• Hazard statements
• Causes serious eye irritation.
• Precautionary statements
• Wash thoroughly after handling.
• Wear eye protection / face protection.
• If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do.
• Continue rinsing.
• If eye irritation persists: Get medical advice/attention.
• Chemical safety assessment: A Chemical Safety Assessment has not been carried out.

16. Other Information

SDS preparation date

1 March 2026

Comments

• Abbreviations and acronyms:
• ADR: Accord relatif au transport international des marchandises dangereuses par route (European Agreement Concerning the International
• Carriage of Dangerous Goods by Road)
• IMDG: International Maritime Code for Dangerous Goods
• (Contd. on page 8)
• US
• Page 8/8
• Safety Data Sheet
• acc. to OSHA HCS
• Date of issue: 04/21/2025 Reviewed on 08/26/2022
• Trade name: SODIUM THIOSULFATE, 0.2% AQUEOUS SOLUTION
• (Contd. of page 7)
• 60023DOT: US Department of Transportation
• IATA: International Air Transport Association
• EINECS: European Inventory of Existing Commercial Chemical Substances
• CAS: Chemical Abstracts Service (division of the American Chemical Society)
• NFPA: National Fire Protection Association (USA)
• HMIS: Hazardous Materials Identification System (USA)
• VOC: Volatile Organic Compounds (USA, EU)
• PBT: Persistent, Bioaccumulative and Toxic
• vPvB: very Persistent and very Bioaccumulative
• NIOSH: National Institute for Occupational Safety
• OSHA: Occupational Safety Health
• TLV: Threshold Limit Value
• PEL: Permissible Exposure Limit
• REL: Recommended Exposure Limit
• Eye Irritation 2: Serious eye damage/eye irritation - Category 2

References

EMS SDS Sodium Thiosulphate, 0.2% Aqueous Solution https://www.emsdiasum.com/docs/technical/msds/26123-07.pdf 26/08/2025