Sodium Thiosulfate Thiosulphate Anhydrous Pentahydrate SDS MSDS of Analytical Reagent Manufacturers & Exporters
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Sodium Thiosulfate Pentahydrate CAS Number 10102-17-7
Sodium Thiosulfate Anhydrous CAS Number 7772-98-7
Sodium Thiosulfate Pentahydrate SDS GHS, Safety Data Sheet
MSDS, Material Safety Data Sheet 09-July-22
1. Product Identification
Product Name & Other Names: Sodium thiosulfate pentahydrate or Antichlor or Sodium hyposulfite pentahydrate, Thiosulfuric acid disodium salt pentahydrate or Sodium thiosulphate pentahydrate or Hypo pentahydrate.
CAS No.: 10102-17-7 for pentahydrate
EINECS: EC Number: 231-867-5
Molecular Weight: 248.18
Chemical Formula: Na2S2O3-5H2O
Relevant uses and uses advised against (if any): Industrial Manufacturing.
Suppliers: As per letterhead.
2. Hazards Identification
GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Classification according to Regulation (EC) No 1272/2008
Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008.
This substance is not classified as dangerous according to Directive 67/548/EEC.
Labeling according to Regulation (EC) No 1272/2008
Signal Word: None
Precautionary statements:
P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P262: Do not get in eyes, on skin, or on clothing.
P281: Use personal protective equipment as required.
P302+P352 - IF ON SKIN: Wash with plenty of soap and water.
P304 + P340 - IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337+313: If eye irritation persists get medical advice/attention.
3. Composition/Information on Ingredients
Product Name & Other Names: Sodium thiosulfate pentahydrate or Antichlor or Sodium hyposulfite pentahydrate, Thiosulfuric acid disodium salt pentahydrate or Sodium thiosulphate pentahydrate or Hypo pentahydrate.
CAS No.: 10102-17-7 for pentahydrate
EINECS: EC Number: 231-867-5
4. First Aid Measures
Always seek medical attention after first aid measures are provided.
Inhalation: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention.
Ingestion: Never give anything by mouth to an unconscious person. Get medical attention.
Skin Contact: Wipe off excess material from skin then immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Get medical attention. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Get medical attention immediately.
Note to Physician: Symptomatic and supportive treatment is recommended.
5. Fire Fighting Measures
Flammability of the Product: May pose a fire hazard when exposed to elevated temperatures or by contact with an ignition source.
Products of Combustion: It emits toxic oxides of carbon and oxides of sulfur when heated to decomposition.
Fire: Sodium thiosulfate pentahydrate may ignite at high temperatures.
Explosion: An explosion may occur if triturated with nitrates, chlorates, or permanganates. Fine dust dispersed in air and in the presence of an ignition source may pose dust explosion hazard.
Fire Extinguishing Media: Water spray, dry chemical, alcohol foam, or carbon dioxide. Use means suitable for extinguishing surrounding fire.
Extinguishing Media Not recommended: Avoid using solid water jet as it may scatter the fire.
Special Information: In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full face piece operated in the pressure demand or other positive pressure mode. At high temperatures under fire conditions, it may produce toxic or irritating fumes. Fire-extinguishing work is done from the windward and the suitable fire-extinguishing method according to the surrounding situation is used.
6. Accidental Release Measures
Personal precautions, protective equipment, and emergency procedures: Avoid breathing dust/fumes/gas/mist/vapors/spray. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.). Restrict unprotected personnel from the area. Prevent any contact with hot surfaces. Do not approach facing the wind.
Environmental precautions: Do not let the product enter drains, soil, or water sources.
Methods and materials used for containment cleanup procedures and Storage: Do not inhale dust, vapors, mist, or gas. Avoid dust formation. Contain spilled material. Cover with an inert, non-combustible absorbent material, (e.g., sand, earth, diatomaceous earth, vermiculite). Use a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading water and allow to evacuate as per law.
7. Handling and Storage
Precautions for safe handling: Apply according to good manufacturing and industrial hygiene practices. Ensure proper ventilation. In case of insufficient ventilation, wear suitable respiratory equipment. Wash thoroughly after handling. Do not drink, eat, or smoke while handling. Avoid contact with skin, eyes, and clothing. Minimize dust generation. Avoid breathing dust/fumes/gas/mist/vapors/spray. Keep container tightly closed. Avoid ingestion and inhalation. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.). Prevent any contact with hot surfaces.
Conditions for safe storage, including any incompatibilities: Store in cool, dry, and ventilated area away from heat sources and protected from sunlight in tightly closed original container. Keep air contact to a minimum. Store protected from heat, sparks and ignition sources and incompatible materials. Avoid contact with skin and eyes. Avoid inhalation of dust/mist/vapor. Do not store with incompatible materials like strong oxidizing agents, nitric acid, fluoride, sodium and potassium nitrate, strong oxidizers, mercury, chlorine, iodine and diketene.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits: None established.
Ventilation System: A system of local and/or general exhaust is recommended to keep employee exposures as low as possible.
Personal Respirators (NIOSH Approved): For conditions of use where exposure to dust or mist is apparent and engineering controls are not feasible, a particulate respirator may be worn.
Skin Protection: Wear protective gloves and clean body-covering clothing.
Eye Protection: Use chemical safety goggles and/or full-face shield where dusting or splashing of solutions is possible. Maintain eye wash fountain and quick-drench facilities in work area.
Other Control Measures: Maintain good housekeeping in work area. Handle in accordance with good industrial hygiene and safety practice.
9. Physical and Chemical Properties
Appearance: Sodium thiosulfate pentahydrate is white crystals or powder or granules.
Odor: None
Odor threshold: Not available.
pH: 6-9 at 1% solution at 25 C (77F)
Relative density: around 1.73
Melting Point: 48C
Initial boiling point and boiling range: Not available.
Flash point: Not available.
Auto-ignition temperature: Not information found.
Decomposition temperature: Not information found.
Upper/lower flammability or explosive limits: Not information found.
Vapor pressure: Not information found.
Vapor density: Not information found.
Evaporation rate: Not information found.
Flammability (solid, gas): Not information found.
Partition coefficient: n-octanol/water: Not information found.
Solubility: Readily soluble in water
Viscosity: Not information found.
Molecular Weight: 248.18
Molecular Formula: Na2S2O3-5H2O
10. Stability and Reactivity
Stability: Stable under ordinary conditions of use and storage. Avoid heat and moisture.
Hazardous Decomposition Products: It emits toxic oxides of carbon and oxides of sulfur hydrogen sulfide along with sodium oxide when heated to decomposition.
Hazardous Polymerization: Will not occur.
Incompatibilities: Nitric acid, fluoride, sodium and potassium nitrate, strong oxidizers, mercury, chlorine, iodine and diketene.
Conditions to Avoid: Moisture, Heat, Incompatibles.
11. Toxicological Information
Toxicity to Animals:
LD50 Oral - rat - > 8.000 mg/kg on anhydrous basis.
LD50 Intraperitoneal - mouse - 5.200 mg/kg
Carcinogenicity: No component of this product present at levels greater than or equal to 0.1% is identified as possible or confirmed human carcinogen by IARC, ACGIH, OSHA and NTP.
Teratogenic Effects: Not information found.
Mutagenic Effects: Not information found.
Developmental Toxicity: Not information found.
Reproductive Effects: Not information found.
12. Ecological Information
Toxicity to fish: LC50 - Gambusia affinis (Mosquito fish) - 24.000 mg/l - 96 h on anhydrous basis.
Persistence and Degradability: Unlikely to persist due to water solubility.
Mobility: Likely to be mobile due to water solubility.
Bioaccumulation/ Accumulation: Not likely to bioaccumulate.
Results of PBT and vPvB assessment: Not information found.
13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility.
14. Transport Information
Land Transport DOT USA, TDG Canada & ADR/RID Europe: Not controlled.
Sea Transport IMDG/IMO: Not controlled.
Air Transport ICAO/ IATA: Not controlled.
15. Regulatory Information
USA:
SARA 311/312 Hazards: See section 2.
California Prop 65: Not listed.
Section 16 - Additional Information
DISCLAIMER: The information and recommendations set forth herein (hereinafter "Information") are presented in good faith and believed correct as of the date hereof. It is compiled from various sources, and it is not necessarily all inclusive nor fully adequate in every circumstance. In addition, these suggestions should not be confused with nor followed in violation of applicable laws, regulations, rules, or insurance requirements applicable. This SDS MSDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a professionally trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose. This shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship. In no case shall our company be liable to loss or damages by the product user.
Sodium Thiosulphate Anhydrous SDS, Safety Data Sheet
MSDS, Material Safety Data Sheet 09-July-22
1. Product Identification
Product Name & Other Names: Sodium thiosulfate anhydrous, Sodium hyposulfite anhydrous, Thiosulfuric acid disodium salt anhydrous, Hypo anhydrous, Sodium thiosulphate anhydrous.
CAS No.: 7772-98-7 for anhydrous
EINECS: EC Number: 231-867-5
Molecular Weight: 158.11
Chemical Formula: Na2S2O3
Relevant uses and uses advised against (if any): Industrial Manufacturing.
Suppliers: As per letterhead.
2. Hazards Identification
GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Classification according to Regulation (EC) No 1272/2008
Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008.
This substance is not classified as dangerous according to Directive 67/548/EEC.
Labeling according to Regulation (EC) No 1272/2008
Signal Word: None
Precautionary statements:
P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P262: Do not get in eyes, on skin, or on clothing.
P281: Use personal protective equipment as required.
P302+P352 - IF ON SKIN: Wash with plenty of soap and water.
P304 + P340 - IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337+313: If eye irritation persists get medical advice/attention.
3. Composition/Information on Ingredients
Product Name & Other Names: Sodium thiosulfate anhydrous, Sodium hyposulfite anhydrous, Thiosulfuric acid disodium salt anhydrous, Hypo anhydrous, Sodium thiosulphate anhydrous.
CAS No.: 7772-98-7
EINECS: EC Number: 231-867-5
4. First Aid Measures
Always seek medical attention after first aid measures are provided.
Inhalation: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention.
Ingestion: Never give anything by mouth to an unconscious person. Get medical attention.
Skin Contact: Wipe off excess material from skin then immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Get medical attention. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Get medical attention immediately.
Note to Physician: Symptomatic and supportive treatment is recommended.
5. Fire Fighting Measures
Flammability of the Product: May pose a fire hazard when exposed to elevated temperatures or by contact with an ignition source.
Auto-Ignition Temperature: NA.
Flash Points: NA.
Flammable Limits: NA.
Products of Combustion: It emits toxic oxides of carbon and oxides of sulfur when heated to decomposition.
Fire: It may ignite at high temperatures.
Explosion: An explosion may occur if triturated with nitrates, chlorates, or permanganates. Fine dust dispersed in air in sufficient concentrations, and in the presence of an ignition source may pose dust explosion hazard.
Fire Extinguishing Media: Water spray, dry chemical, alcohol foam, or carbon dioxide. Use means suitable for extinguishing surrounding fire.
Extinguishing Media Not recommended: Avoid using solid water jet as it may scatter the fire.
Special Information: In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full face piece operated in the pressure demand or other positive pressure mode. At high temperatures under fire conditions, it may produce toxic or irritating fumes. Fire-extinguishing work is done from the windward and the suitable fire-extinguishing method according to the surrounding situation is used.
6. Accidental Release Measures
Personal precautions, protective equipment, and emergency procedures: Avoid breathing dust/fumes/gas/mist/vapors/spray. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.). Restrict unprotected personnel from the area. Prevent any contact with hot surfaces. Do not approach facing the wind.
Environmental precautions: Do not let the product enter drains, soil, or water sources.
Methods and materials used for containment cleanup procedures and Storage: Do not inhale dust, vapors, mist, or gas. Avoid dust formation. Contain spilled material. Cover with an inert, non-combustible absorbent material, (e.g., sand, earth, diatomaceous earth, vermiculite). Use a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading water, swab and allow to evacuate as per law.
7. Handling and Storage
Precautions for safe handling: Apply according to good manufacturing and industrial hygiene practices. Ensure proper ventilation. In case of insufficient ventilation, wear suitable respiratory equipment. Wash thoroughly after handling. Do not drink, eat, or smoke while handling. Avoid contact with skin, eyes, and clothing. Minimize dust generation. Avoid breathing dust/fumes/gas/mist/vapors/spray. Keep container tightly closed. Avoid ingestion and inhalation. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.). Prevent any contact with hot surfaces.
Conditions for safe storage, including any incompatibilities: Store in cool, dry, and ventilated area away from heat sources and protected from sunlight in tightly closed original container. Keep air contact to a minimum. Store protected from heat, sparks and ignition sources and incompatible materials. Avoid contact with skin and eyes. Avoid inhalation of dust/mist/vapor. Do not store with incompatible materials like strong oxidizing agents, nitric acid, fluoride, sodium and potassium nitrate, mercury, chlorine, iodine and diketene.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits: None established.
Ventilation System: A system of local and/or general exhaust is recommended to keep employee exposures as low as possible.
Personal Respirators (NIOSH Approved): For conditions of use where exposure to dust or mist is apparent and engineering controls are not feasible, a particulate respirator may be worn.
Skin Protection: Wear protective gloves and clean body-covering clothing.
Eye Protection: Use chemical safety goggles and/or full-face shield where dusting or splashing of solutions is possible. Maintain eye wash fountain and quick-drench facilities in work area.
Other Control Measures: Maintain good housekeeping in work area. Handle in accordance with good industrial hygiene and safety practice.
9. Physical and Chemical Properties
Appearance: Sodium Thiosulphate Anhydrous is white powder or granules.
Odor: None
Odor threshold: Not available.
pH: 6.5-8.5
Relative density: Not available.
Melting point/freezing point: Not available.
Initial boiling point and boiling range: Not available.
Flash point: Not available.
Auto-ignition temperature: No information found.
Decomposition temperature: No information found.
Upper/lower flammability or explosive limits: No information found.
Vapor pressure: No information found.
Vapor density: No information found.
Evaporation rate: No information found.
Flammability (solid, gas): No information found.
Partition coefficient: n-octanol/water: No information found.
Solubility: Freely soluble in water
Viscosity: No information found.
Molecular Weight: 158.11
Molecular Formula: Na2S2O3
10. Stability and Reactivity
Stability: It is stable under ordinary conditions of use and storage. Avoid heat and moisture.
Hazardous Decomposition Products: It emits toxic oxides of carbon and oxides of sulfur hydrogen sulfide along with sodium oxide when heated to decomposition.
Hazardous Polymerization: Will not occur.
Incompatibilities: Nitric acid, fluoride, sodium and potassium nitrate, strong oxidizers, mercury, chlorine, iodine and diketene.
Conditions to Avoid: Moisture, Heat, Incompatibles.
11. Toxicological Information
Toxicity to Animals:
LD50 Oral - rat - > 8.000 mg/kg on anhydrous basis.
LD50 Intraperitoneal - mouse - 5.200 mg/kg
Carcinogenicity: No component of this product present at levels greater than or equal to 0.1% is identified as possible or confirmed human carcinogen by IARC, ACGIH, OSHA and NTP.
Mutagenic Effects: No information found.
Developmental Toxicity: No information found.
Reproductive Effects: No information found.
12. Ecological Information
Toxicity to fish: LC50 - Gambusia affinis (Mosquito fish) - 24.000 mg/l - 96 h on anhydrous basis.
Persistence and Degradability: Unlikely to persist due to water solubility.
Mobility: Likely to be mobile due to water solubility.
Bioaccumulation/ Accumulation: No information found.
Results of PBT and vPvB assessment: No information found.
13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility.
14. Transport Information
Land Transport DOT USA, TDG Canada & ADR/RID Europe: Not controlled.
Sea Transport IMDG/IMO & Air Transport IATA/ICAO: Not controlled.
15. Regulatory Information
USA:
California Proposition 65: Not listed.
SARA 311/312 Hazards: See section 2.
Section 16 - Additional Information
DISCLAIMER: The information and recommendations set forth herein (hereinafter "Information") are presented in good faith and believed correct as of the date hereof. It is compiled from various sources, and it is not necessarily all inclusive nor fully adequate in every circumstance. In addition, these suggestions should not be confused with nor followed in violation of applicable laws, regulations, rules, or insurance requirements applicable. This SDS MSDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a professionally trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose. This shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship. In no case shall our company be liable to loss or damages by the product user.
Specifications of Sodium Thiosulphate Anhydrous Pentahydrate BP Ph Eur EP JP USP NF IP ACS Analytical Reagent FCC Food grade Manufacturers |
