Sodium Thiosulfate LR Grade POWDER
Sodium Thiosulfate pure LAB GRADE materials Molecular Formula ::: Na2S2O3 - 5H2O
Code: RXSOL-60-6156-001
Other Equivalent Brand
Chlorine control, Declor-it, Disodium thiosulfate, S-hydril, Sodium hyposulfite, Sodium oxide sulfide, Antichlor, Sodothiol, Sulfothiorine, Ametox
Short Description:
Sodium Thiosulfate used as a Pond / Aquarium Dechlorinator. This product also used as a Photography as a fixing agent (hypo) to dissolve unchanged silver salts from exposed negatives.
Application:
laboratory synthesis In the laboratory, this salt can be prepared by heating an aqueous solution of sodium sulphite with sulphur. Principal reactions and applications Thiosulfate anion character [+] Read More...
Using Procedure:
Process for DE CHLORINATION ::: Dissolve the 500 grams of Sodium Thiosulfate in a large pitcher of lukewarm tap water. Stir until all the crystals are dissolved. Then transfer the solution with a funnel t [+] Read More...
Note:
Analytical chemistry Sodium thiosulfate is also used in analytical chemistry. It can, when heated with a sample containing aluminum cation, produce a white precipitation: 2 Al3+ + 3 S2O32− + 3 H2O →3 SO [+] Read More...
Technical Specifications:
IUPAC name :Sodium thiosulfate
Other names:Sodium hyposulfite ,Hyposulphite of soda
Identifiers CAS number : 7772-98-7 Y, 10102-17-7 : (pentahydrate)
UNII :L0IYT1O31N Y
ChEMBL CHEMBL : 1201157 N
RTECS number :XN6476000
|
Molecular Formula |
Na2S2O3 |
|
Molar Mass |
158.11 g/mol |
|
Appearance |
white crystals |
|
Odor |
odorless |
|
Density |
1.667 g/cm3 |
|
Melting Point |
48.3 °C (pentahydrate) |
|
Boiling Point |
100 °C (pentahydrate, - 5H2O decomp) |
|
Solubility in Water |
76.4 g/100 g H20(20 °C) |
IUPAC name :Sodium thiosulfate
Other names:Sodium hyposulfite ,Hyposulphite of soda
Identifiers
CAS number : 7772-98-7 Y,
10102-17-7 : (pentahydrate)
PubChem: 24477
ChemSpider :22885 Y
UNII :L0IYT1O31N Y
ChEMBL CHEMBL : 1201157 N
RTECS number :XN6476000
Remarks:
Sodium Thiosulfate solutions are almost exclusively used to standardize Iodine solutions or as back-titrants in titrations using Iodine. Solutions of Sodium Thiosulfate are most commonly standardized with Potassium Dichromate or Potassium Iodate solutions, which generate Iodine from Iodide. Starch indicator is typically used. The reaction with Iodine is:
I3- + 2 S2O32- → 3 I- + S4O62- (Dithionite ion)
Titrations with standard Sodium Thiosulfate solution are best conducted in the pH 5 - 9 range. Since this is not always possible, the titrations should be conducted rapidly and with adequate stirring to insure rapid reaction of the Thiosulfate, thus minimizing any acid-accelerated decomposition. This will also minimize the acid-catalyzed oxidation of Iodide (usually present in a titration involving Thiosulfate) to Iodate, which could lead to decreased accuracy.
Sodium Thiosulfate solutions are subject to bacterial decomposition and chemical deterioration. Sodium Thiosulfate solutions decompose in acid solution resulting in the evolution of Sulfur Dioxide gas and precipitation of elemental Sulfur. Contact with Carbon Dioxide in the air can produce the acidity leading to this decomposition, which is faster in more dilute Thiosulfate solutions.
Sodium Thiosulfate manufacturer and supplier in Mumbai, Kandla, Kolkata, Chennai, Visakhapatnam, Fujairah, Dubai, Ajman, Abudhabi, Sharjah, Muscat, Oman.
Packing Size: 500.00 Grams
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