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Safety Data Sheet EN

Sodium thiosulfate.5aq a.r.

CAS 10102-17-7
EC 231-867-5

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01

Identification

Product identifiers, regulatory numbers, and supplier information

Product Information

Product Name
Sodium thiosulfate.5aq a.r.
Product Form
Substance
Product Code
CL00.1433
Chemical Name
Sodium thiosulfate.5aq a.r.
Synonyms
ametox (=disodium thiosulfate, pentahydrate) / antichlor (=disodium thiosulfate, pentahydrate) / disodium thiosulfate, pentahydrate / HYPO (=sodium thiosulfate, pentahydrate) / hyposodium thiosulfate, pentahydrate / NSC-45624 / sodium hyposulfite, 5-hydrate / sodium hyposulfite, pentahydrate / sodium thiosulfate-5-hydrate / sodium thiosulphate, pentahydrate / sodothiol (=sodium thiosulfate, pentahydrate) / sulfothiorine (=disodium thiosulfate pentahydrate) / thiosulfuric acid (H2S2O3), disodium salt / thiosulfuric acid disodium salt, pentahydrate

Regulatory Identifiers

CAS Number
10102-17-7 Check regulations →
EC Number
231-867-5 Check regulations →

Identified Uses

Laboratory chemical

Manufacturers & Suppliers

Chem-Lab nv logo

Chem-Lab nv

manufacturer

Industriezone 'De arend 2', Zedelgem – Belgium

+32 50 288320

https://www.chem-lab.be

Emergency Contacts

Emergency Contact

+32 50 28 83 20

02

Hazard Identification

GHS classification, signal word, pictograms, and hazard statements

Classified no signal word

Hazard Classifications

Not Classified

GHS Pictograms

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03

Composition / Information on Ingredients

Chemical components, concentration ranges, and hazardous substance identification

Type substance
Chemical Name CAS Number Concentration Hazardous
Sodium thiosulfate.5aq a.r. EC: 231-867-5 10102-17-7 100% No
04

First Aid Measures

Emergency procedures for chemical exposure incidents

Inhalation

Remove victim into fresh air. In case of respiratory problems, consult a doctor/medical service.

Symptoms: AFTER INHALATION OF DUST: Coughing.

Skin contact

If possible, wipe up/dry remove chemical. Then rinse/shower immediately with (lukewarm) water.

Symptoms: No effects known.

Eye contact

Rinse immediately with (lukewarm) water. Remove contact lenses, if present and easy to do. Continue rinsing. If irritation persists, consult a doctor/medical service.

Symptoms: No effects known.

Ingestion

Rinse mouth with water. If you feel unwell, consult a doctor/medical service. Do not wait for symptoms to occur to consult Poison Center.

Symptoms: AFTER INGESTION OF HIGH QUANTITIES: Nausea. Vomiting. Diarrhoea.

05

Firefighting Measures

Extinguishing media, specific hazards, and firefighter protection

Suitable media

Adapt extinguishing media to the environment for surrounding fires.

Specific hazards

DIRECT FIRE HAZARD: Non combustible. INDIRECT FIRE HAZARD: Reactions involving a fire hazard: see "Reactivity Hazard". DIRECT EXPLOSION HAZARD: No direct explosion hazard. INDIRECT EXPLOSION HAZARD: Reactions with explosion hazards: see "Reactivity Hazard".

Instructions

Dilute toxic gases with water spray. Take account of toxic/corrosive precipitation water.

Firefighter Protection

Heat/fire exposure: self-contained breathing apparatus (EN 136 + EN 137).

06

Accidental Release Measures

Spill cleanup procedures, containment, and environmental protection

Emergency procedures

Mark the danger area. Prevent dust cloud formation, e.g. by wetting. No naked flames. Keep containers closed. Wash contaminated clothes. In case of hazardous reactions: keep upwind. In case of reactivity hazard: consider evacuation.

Environmental

No additional information available

Cleanup methods

Stop dust cloud by humidifying. Stop dust cloud by covering with sand/earth. Scoop solid spill into closing containers. Clean contaminated surfaces with an excess of water. Wash clothing and equipment after handling.

Materials: sand/earth

Related Products

Similar products with comparable safety profiles

07

Handling and Storage

Safe handling precautions, storage conditions, and workplace requirements

Handling

Avoid raising dust. Keep away from naked flames/heat. Carry operations in the open/under local exhaust/ventilation or with respiratory protection. Comply with the legal requirements. Clean contaminated clothing. Keep container tightly closed. Thoroughly clean/dry the installation before use.

Storage

Store in a cool area. Store in a dry area. Keep container in a well-ventilated place. Keep container tightly closed.

Hygiene

Observe normal hygiene standards.

Fire prevention

Keep away from naked flames/heat.

08

Exposure Controls / PPE

Occupational exposure limits, engineering controls, and protective equipment

Hands

Protective gloves against chemicals (EN 374)

Eyes

Safety glasses (EN 166). In case of dust production: protective goggles (EN 166)

Respiratory

Dust production: dust mask with filter type P1

Skin/Body

Protective clothing (EN 14605 or EN 13034). Materials for protective clothing: Excellent resistance: Nitrile rubber. Good resistance: Natural rubber. neoprene (chloroprene rubber). Polyvinylchloride (PVC)

09

Physical and Chemical Properties

Appearance, physical state, melting point, boiling point, and material characteristics

Physical State
Solid
Physical State Data
solid
State Under Standard Conditions
---
Appearance
Crystalline solid. Powder. Grains.
Colour
Colourless to white.
Colour Intensity
---
Form
---
Odor
Odourless.
Odor Threshold
Not available
Ph
6.5 – 9.5 (10 %, 20 °C)
Melting Point
Not applicable (decomposes), OECD 102: Melting Point/Melting Range
Boiling Point
Not applicable (decomposes)
Flash Point
Not applicable
Freezing Point
Not available
Softening Point
---
Solidification Point
---
Cloud Point
---
Crystallisation Point
---
Relative Evaporation Rate
---
Evaporation Rate
---
Vapor Pressure
No data available in the literature
Vapor Density
---
Relative Density
1.69 (20 °C, Anhydrous form)
Bulk Density
---
Density
1690 kg/m³ (20 °C, Anhydrous form)
Flammability
Not available
Upper Explosive Limit
Not applicable
Lower Explosive Limit
Not applicable
Explosive Limits
---
Auto Ignition Temperature
Not applicable
Decomposition Temperature
≥ 320 °C (Anhydrous form, OECD 102: Melting Point/Melting Range)
Solubility
Decomposes on exposure to water. Soluble in ammonia. Water: 77 g/100ml (25 °C, Anhydrous form)
Partition Coefficient
Not available
Solubility In Water
77 g/100ml (25 °C, Anhydrous form)
Solubility In Fat
---
Molecular Weight
248.18 g/mol
Voc Content
Not applicable (inorganic)
Metal Corrosion
---
Dynamic Viscosity
Not applicable (solid)
Kinematic Viscosity
Not applicable (solid)
Properties Status
---
10

Stability and Reactivity

Chemical stability, hazardous reactions, and incompatible materials

Stability

Unstable on exposure to moisture.

Reactivity

Violent to explosive reaction with (strong) oxidizers.

Hazardous reactions

No additional information available

Avoid

No additional information available

Incompatible

No additional information available

Decomposition

sulphur dioxide (from reaction with acids), hydrogen sulphide, sodium sulphide (from heating), hydrogen sulphide (from exposure to water/moisture)

12

Ecological Information

Environmental toxicity, biodegradation, and bioaccumulation data

The data for this section has not been processed yet.

13

Disposal Considerations

Waste treatment methods, disposal recommendations, and waste codes

The data for this section has not been processed yet.

14

Transport Information

UN numbers, shipping names, transport classes, and regulatory requirements

15

Regulatory Information

Chemical regulations, safety assessments, and compliance status

The data for this section has not been processed yet.

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Frequently Asked Questions

Common questions about safety, handling, and properties

What other names is Sodium thiosulfate.5aq a.r. known by?

Sodium thiosulfate.5aq a.r. is also known as: ametox (=disodium thiosulfate, pentahydrate) / antichlor (=disodium thiosulfate, pentahydrate) / disodium thiosulfate, pentahydrate / HYPO (=sodium thiosulfate, pentahydrate) / hyposodium thiosulfate, pentahydrate / NSC-45624 / sodium hyposulfite, 5-hydrate / sodium hyposulfite, pentahydrate / sodium thiosulfate-5-hydrate / sodium thiosulphate, pentahydrate / sodothiol (=sodium thiosulfate, pentahydrate) / sulfothiorine (=disodium thiosulfate pentahydrate) / thiosulfuric acid (H2S2O3), disodium salt / thiosulfuric acid disodium salt, pentahydrate

What is the hazard signal word for Sodium thiosulfate.5aq a.r.?

The signal word is no signal word.

What is the physical form of Sodium thiosulfate.5aq a.r.?

Sodium thiosulfate.5aq a.r. is a solid appearing as crystalline solid. powder. grains. with colourless to white. color. It has odourless. odor.

What is the solubility of Sodium thiosulfate.5aq a.r.?

Decomposes on exposure to water. Soluble in ammonia. Water: 77 g/100ml (25 °C, Anhydrous form)

What is Sodium thiosulfate.5aq a.r. used for?

Laboratory chemical

What is the melting point of Sodium thiosulfate.5aq a.r.?

The melting point is Not applicable (decomposes), OECD 102: Melting Point/Melting Range and the boiling point is Not applicable (decomposes).