Sodium Thiosulfate Pentahydrate [cas_10102-17-7] Photo Grade 99+% Crystal 50 Lb

US $186.00

Ontario, California, United States
Aug 4th

Open on mobile:
QR code

Wintersun code: 19-125 CAS Number: 10102-17-7 Molecular Formula: Na2O3S2.5H2O Molecular Weight: 248.18 g/mol Applications Sodium Thiosulfate is a white translucent crystals or powder that is common as the pentahydrate form; melting at 48 C; readily soluble in water and oil of turpentine; aqueous solution is slightly alkaline which decompose to sulfate and sulfide in the air. It is a moderate reducing agent. It is a source of thiosulfate ion (S2O3-2) (dissolves silver salts). Its major use is as a fixing agent in photography for developing film and the extracting silver from ore. It is used in chrome-tanning leather and in chemical manufacture as a source of sulfide ion. It is also used in paper, textile, and water treatment industry and gas purification. Sales Specification Appearance: Monoclinic system crystal, colorless transparent Sodium Thiosulfate (as Na2S2O3.5H2O) percent by mass, min: 99.00% pH of 10% Solution: 6.0 to 8.0 Insoluble matter and metals other than alkali metals, percent by mass, max: 0.01% Sodium Sulphide (as Na2S) percent by mass, max: 0.01% to 0.001% Heavy Metals (as Pb) percent by mass, max: 0.003% Iron (as Fe) percent by mass, max: 0.002% Packing 50 lb paper bag Wintersun Chemical SHIPS ONLY to the lower 48 states of America. For Alaska, Hawaii, and Puerto Rico, please contact us for purchasing RETURN/ EXCHANGE POLICY · FULL REFUND - 100% OF THE ITEM'S PRICE (BUYERS PAY THE RETURN SHIPPING) Items that are not opened and still in original packing condition within 30 days. · PARTIAL REFUND - UP TO 50% OF THE ITEM'S PRICE (BUYERS PAY THE RETURN SHIPPING) Items that are damaged, not in the original packing condition, or have obvious signs of use for reasons not due to the seller?s error. · EXCHANGE (SELLER PAYS THE SHIPPING FOR EXCHANGE ONLY IF DUE TO THE SELLER'S ERROR) Wintersun will replace with the same items per your request if the items are damaged during delivery, defective, or wrong due to the seller?s error. · The warehouse will inspect the items sent back for a refund and reserves the right to reject the returns if more than 50% of the item per packing is used. Once the return has been processed, you will receive a return email confirmation.

Condition:

New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...

Brand

Wintersun Chemical