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Sodium thiosulfate pentahydrate(10102-17-7)

Sodium thiosulfate pentahydrate(10102-17-7)
Product IdentificationBack to Contents
【Product Name】

Sodium thiosulfate pentahydrate
【Synonyms】

Ametox
Disodium thiosulphate pentahydrate
Hypo
Sulfactol
Thiosulfuric acid, disodium salt, pentahydrate
Tinver
【CAS】

10102-17-7
【Formula】

H10Na2O8S2
【Molecular Weight】

248.21
【EINECS】

231-867-5
【RTECS】

WE6660000
【RTECS Class】

Drug; Human Data
【Merck】

12,8844
【Beilstein/Gmelin】

56152 (G)
Physical and Chemical PropertiesBack to Contents
【Appearance】

Colorless crystals
【Solubility in water】

701 g/L (20 C)
【Melting Point】

48
【Density】

1.67 g/cm3
【Usage】

Iodometry, photographic processing, gold extraction.
First Aid MeasuresBack to Contents
【Ingestion】

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
【Inhalation】

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
【Eyes】

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Handling and StorageBack to Contents
【Storage】

Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from strong acids. Store protected from moisture.
【Handling】

Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid prolonged or repeated contact with skin. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Hazards IdentificationBack to Contents
【Ingestion】

Ingestion of large amounts may cause gastrointestinal irritation. The toxicological properties of this substance have not been fully investigated.
【Inhalation】

May cause respiratory tract irritation. Low hazard for usual industrial handling. The toxicological properties of this substance have not been fully investigated.
【Skin】

Prolonged and/or repeated contact may cause irritation and/or dermatitis.
【Eyes】

May cause eye irritation.
【EC Risk Phrase】

R 36/38
【EC Safety Phrase】

S 26 36
Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
【Poison Class】

4
Fire Fighting MeasuresBack to Contents
【Fire Fighting】

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Wear appropriate protective clothing to prevent contact with skin and eyes. Wear a self-contained breathing apparatus (SCBA) to prevent contact with thermal decomposition products. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Stability and ReactivityBack to Contents
【Disposal Code】

28
【Incompatibilities】

Moisture, strong acids, strong bases, strong oxidizing agents.
【Stability】

Stable under normal shipping and handling conditions.
【Decomposition】

Irritating and toxic fumes and gases, hydrogen sulfide, sodium oxide.
Transport InformationBack to Contents
【HS Code】

2832 30 00
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