SAFETY DATA SHEET
Sodium Thiosulphate, 0.2% Aqueous Solution
1. IDENTIFICATION
Product Identifiers
Product Name:
Sodium Thiosulphate, 0.2% Aqueous Solution
Other Names:
Nil
Product Number(s):
26123-07, EMS26123-07
CAS Number:
7732-18-5
Recommended use of the chemical and restriction on use
Laboratory chemicals, Laboratory use
Company Details
ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia(07) 4773 9444www.proscitech.com
11 Carlton Street
KIRWAN QLD 4817
Australia(07) 4773 9444www.proscitech.com
Emergency Contact Details
ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia(07) 4773 9444www.proscitech.com
11 Carlton Street
KIRWAN QLD 4817
Australia(07) 4773 9444www.proscitech.com
2. HAZARDS IDENTIFICATION
Classification of the substance or mixture
GHS07: Eye Irritation 2 H319 Causes serious eye irritation.
· Label elements
· GHS label elements The substance is classified and labeled according to the Globally Harmonized System (GHS).
· Label elements
· GHS label elements The substance is classified and labeled according to the Globally Harmonized System (GHS).
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.
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
Not applicable
Human Health
Inhalation:
Not applicable
Ingestion:
Not applicable
Eyes:
Wear eye protection / face protection
Skin:
Wash thoroughly after handling.
Environment
3. COMPOSITION/INFORMATION ON INGREDIENTS
Name
CAS No.
Content (w/w)
Classification
Sodium Thiosulphate Pentahydrate
Not Available
Not Available
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.
· Indication of any immediate medical attention and special treatment needed
No further relevant information available.
5. FIREFIGHTING MEASURES
Suitable extinguishing equipment
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.
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.
Prevent formation of aerosols.
· Information about protection against explosions and fires: No special measures required.
Conditions for safe storage
· 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.
· 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
Skin protection
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.
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.
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
Na₂S₂O₃·5H₂O
10. STABILITY AND REACTIVITY
Reactivity
No further relevant information available.
Hazardous decomposition products: No dangerous decomposition products known.
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
Interactive effects No interactive effects between components are known
Eye contact
Irritating effect.
Skin contact
No irritant effect.
Ingestion
Inhalation
Toxicity and irritation
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.
· 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
· Waste treatment methods
· Recommendation:
Must not be disposed of together with household garbage. Do not allow product to reach sewage system.
· Uncleaned packagings:
· Recommendation: Disposal must be made according to official regulations
· Recommendation:
Must not be disposed of together with household garbage. Do not allow product to reach sewage system.
· Uncleaned packagings:
· Recommendation: Disposal must be made according to official regulations
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.
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.
· 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
29 August 2025
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
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
This Safety Data Sheet (SDS) has been prepared in compliance with the Preparation of Safety Data Sheets for Hazardous Chemicals Code of Practice February 2016. It is the user's responsibility to determine the suitability of this information for adoption of necessary safety precautions. The information published in this SDS has been compiled from the publications listed in Section 16: to the best of our ability and knowledge these publications are considered accurate. We reserve the right to revise Safety Data Sheets as new information becomes available. Copies may be made for non-profit use.