SAFETY DATA SHEET
Sodium Thiosulphate, 1% Aqueous
1. IDENTIFICATION
Product Identifiers
Product Name:
Sodium Thiosulphate, 1% Aqueous
Other Names:
Nil
Product Number(s):
21360-1, EMS21360-1
CAS Number:
7732-18-5
Recommended use of the chemical and restriction on use
Laboratory Chemicals
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
Void
Label Elements
Signal Words
None
Hazard Statement(s)
Void
Precautionary Statement(s)
Void
Primary route(s) of entry
Void
Human Health
Inhalation:
Void
Ingestion:
Void
Eyes:
Void
Skin:
Void
Environment
There are no adverse physical or health effects known that are not covered by the hazard classes of the Hazard Communications Standard.
3. COMPOSITION/INFORMATION ON INGREDIENTS
Name
CAS No.
Content (w/w)
Classification
Sosium Tiosulphate Pentahydrate
10102-17-7
0.1-1%
Not Available
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.
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
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.
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.
Ensure good ventilation/exhaustion at the workplace.
Prevent formation of aerosols.
Conditions for safe storage
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
Eye and face protection
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.
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.
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
Na₂S₂O₃
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
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.
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.
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
Smaller quantities can be disposed of with household waste.
Uncleaned packagings:
Recommendation: Disposal must be made according to official regulations.
Recommended cleansing agent: Water, if necessary with cleansing agents.
Uncleaned packagings:
Recommendation: Disposal must be made according to official regulations.
Recommended cleansing agent: Water, if necessary with cleansing agents.
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
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
20 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
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
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
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.