Name | Sodium thiosulfate pentahydrate |
Synonyms | HYPO ametox nsc-45624 Sulfothiorine disodium sulfurothioate SodiuM thiosulfate pentahydra Sodiumthiosulfate,pentahydrat Sodium thiosulfate pentahydrate Sodium thiosulphate pentahydrate SODIUM THIOSULFATE-5-HYDRATE EXTRA PURE, Thiosulfuricacid,disodiumsalt,pentahydrate SODIUM THIOSULFATE PENTAHYDRATE, CRYSTAL LIZED Thiosulfuricacid(H2S2O3)disodiumsalt,pentahydrate thiosulfuricacid(h2s2o3),disodiumsalt,pentahydrate SodiuM Thiosulfate, 0.100 N Aqueous Solution, USP VoluMetric SolutionAPHA |
CAS | 10102-17-7 |
EINECS | 600-156-5 |
InChI | InChI=1/Na.H2O3S2.5H2O/c;1-5(2,3)4;;;;;/h;(H2,1,2,3,4);5*1H2/q+1;;;;;;/p-2 |
InChIKey | AKHNMLFCWUSKQB-UHFFFAOYSA-L |
Molecular Formula | H10Na2O8S2 |
Molar Mass | 248.18 |
Density | 1.01g/mLat 25°C |
Melting Point | 48.5 °C |
Boling Point | 100 C |
Water Solubility | 680 g/L (20 ºC) |
Solubility | Easily soluble in water, the aqueous solution is nearly neutral. Soluble in turpentine and ammonia. Insoluble in alcohol. |
Appearance | White crystal |
Specific Gravity | 1.729 |
Color | White tranparent |
Odor | Odorless |
Merck | 14,8694 |
PH | 6.0-7.5 (100g/l, H2O, 20℃) |
Storage Condition | Store at +5°C to +30°C. |
Stability | Stable. Incompatible with strong acids, iodine, mercury. |
MDL | MFCD00149186 |
Physical and Chemical Properties | Character: colorless monoclinic crystal. Odorless, with a cool and bitter taste. Melting Point: 40~45 ℃ relative density: 1.729(17 ℃) The solubility is easily soluble in water, and the aqueous solution is nearly neutral. Soluble in turpentine and ammonia. Insoluble in alcohol. |
Use | Used in photography, film, textile, chemical fiber, paper, leather, pesticide industry |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S24/25 - Avoid contact with skin and eyes. S37/39 - Wear suitable gloves and eye/face protection S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
WGK Germany | 1 |
RTECS | WE6660000 |
FLUKA BRAND F CODES | 10 |
TSCA | Yes |
HS Code | 28323000 |
Toxicity | LD50 orally in Rabbit: > 5000 mg/kg |
Reference Show more | 1. [IF=4.171] Ya-ping Huang et al."Protective effect and mechanism of Monascus-fermented red yeast rice against colitis caused by Salmonella enterica serotype Typhimurium ATCC 14028."Food Funct. 2020 Jul;11(7):6363-6375 2. [IF=3.352] Mengdi Xu et al."Morphological characterization of postembryonic development of blood–spleen barrier in duck."Poultry Sci. 2020 Aug;99:3823 |
colorless transparent monoclinic crystal. Melting Point: 48 ℃; Relative density: 1. 69. Soluble in water, when dissolved endothermic, insoluble in ethanol. Deliquescence in moist air. Weathering in air above 33 ℃. Can be oxidized by air, with reduction. Can dissolve silver halide. When heated to 100 ° C, 5 crystal water is lost, and the burning is decomposed into sodium sulfide and sodium sulfate.
sodium sulfite heptahydrate was added and dissolved in water, and the rod-shaped sulfur was sufficiently pulverized and then put into a sodium sulfite heptahydrate solution. After heating and boiling, sulfur was completely dissolved, filtration was performed, and the filtrate was concentrated until crystals began to precipitate. After cooling, Suction filtration crystallization, available five sodium thiosulfate hydrate.
used in photography as a fixer. Also used for electroplating, tanning leather and fabric printing and dyeing.