Sodium Thiosulphate Aqueous Solutions - 1%

1. Identification

Product Identifiers

Product Name

Sodium Thiosulphate Aqueous Solutions - 1%

Other Names

Nil

Product Number(s)

21360-1, EMS21360-1

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

Danger

Hazard Statement(s)

Void

Precautionary Statement(s)

Void

Primary route(s) of entry

Human Health

Inhalation

Void

Ingestion

Void

Eyes

Void

Skin

Void

Environment

3. Composition / Information on Ingredients

4. First Aid Measures

Ingestion

If symptoms persist consult doctor.

Inhalation

In case of unconsciousness place patient stably in side position for transportation

Skin Contact

Immediately wash with water and soap and rinse thoroughly.

Eye Contact

Rinse opened eye for several minutes under running water

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

Dilute with plenty of water.

Methods and materials for containment and clean up

• No further relevant information available.
• Advice for firefighters:
• Protective equipment: No special measures required.

7. Handling and Storage

Precautions for safe handling

• No special measures required.
• Ensure good ventilation/exhaustion at the workplace.
• Prevent formation of aerosols.

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: None.
• Specific end use(s) No further relevant information available.

8. Exposure Controls / Personal Protection

Exposure Standards

Engineering controls

Not required.

Personal protective equipment

Skin protection

• General protective and hygienic measures:
• Keep away from foodstuffs, beverages and feed.
• Immediately remove all soiled and contaminated clothing.
• Avoid contact with the skin.
• Avoid contact with the eyes and skin.

Body protection

• Protective gloves
• 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

Charcteristic

pH

Mixture is non-polar/aprotic.

Vapour Pressure

at 20 °C (68 °F): 23 hPa (17.3 mm Hg)

Density

at 20 °C (68 °F): 1 g/cm³ (8.345 lbs/gal)

Boiling Point

100 °C (212 °F)

Melting Point

0 °C (32 °F)

Solubility

Fully miscible

Specific Gravity of Density

Not applicable.

Flash Point

Not applicable.

Flammable (Explosive) Limits

Not determined

Ignition Temperature

Not determined

Formula

Na₂S₂O?

10. Stability and Reactivity

Reactivity

No further relevant information available.

Chemical stability

• Thermal decomposition / conditions to be avoided: No decomposition if used according to specifications.
• Possibility of hazardous reactions No dangerous reactions known

Possibility of hazardous reactions

No dangerous reactions known.

Conditions to avoid

No further relevant information available

Incompatible materials

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

11. Toxicological Information

Acute effects

No further relevant information available

Eye contact

No irritating effect.

Skin contact

Irritant to skin and mucous membranes.

Ingestion

No sensitizing effects known.

Inhalation

No sensitizing effects known.

Toxicity and irritation

• When used and handled according to specifications, the product does not have any harmful effects according to
• our experience and the information provided to us.
• The substance is not subject to classification.
• Interactive effects No interactive effects between components are known.

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

No further relevant information available.

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

No further relevant information available.

Other Information

• GHS label elements Void
• Hazard pictograms Void
• Signal word Void
• Hazard statements Void
• Chemical safety assessment: A Chemical Safety Assessment has not been carried out

16. Other Information

SDS preparation date

2 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
• DOT: US Department of Transportation
• IATA: International Air Transport Association
• EINECS: European Inventory of Existing Commercial Chemical Substances
• ELINCS: European List of Notified 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

References

EMS SDS Sodium Thiosulphate, 1% Aqueous, https://www.emsdiasum.com/docs/technical/msds/21360-1.pdf 28/12/2021