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ChemCenter

Sodium Thiosulfate, Fine Crystals, 99.5% min., 500 Grams (1.1 lb.)

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Jun 1
Order within 22 hours and 31 minutes
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Features

  • Packaging and Labeling May Vary Product has an indefintie shelf life

Description

You are purchasing 500 grams of Reagent (99.5+ min.%) Sodium Thiosulfate, Pentahydrate. This is NOT the cheaper quality large crystals others sell for dechlorination of pools, etc. Buyer assumes all liability for the use of this item. Buyer agrees to use this item in accordance with all local, state, and federal laws. This is for laboratory and scientific use only! NOT for food or drug use. Picture may not reflect new GHS labeling.

Brand: ChemCenter


Item Weight: 500 Grams


Molecular weight: 84.01


Percentage assay: 99.5


Package Information: Bottle


Molecular Weight: 84.01


% Assay of Chemical(s): 99.5


Container Type: Bottle


Item Weight: 500 Grams


Brand Name: ChemCenter


Manufacturer: RND Center Inc.


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jun 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • excellent product
A little sodium thiosulfate goes a long ways...
Reviewed in the United States on April 7, 2026 by Curtiss Adam
    • No fish trauma chlorine neutralization
Never lost a fish!
Reviewed in the United States on September 12, 2025 by Sheila M.
    • Skin parasite solution
This seems pure and shipment is very quick. Ordered twice. Purity is important with this product for personal use. I learned of sodium thiosulfate from a candida protocol in the book: Candida--Killing So Sweetly, by Bill Thompson. This is helping remove biofilm, inside and out. Tnompson recommends 6-10 drops of 10% solution. Seller was quick to answer how to create the 10%; it'the ratio by weight (1:9, s.t. and water). My scale indicated 1 Tblsp. s.t. to 2/3 C. water. I've experimented with a long list of things to kill skin parasitez and a subtle fungus. A very effective remedy is so simple. I fill a 2 cup container with borax and about 2 tablespoons of s.t. Add just enough liquid Dr. Bronner's liquid castille soap to cover. Scrub scalp and let set while scrubbing all over. Try to let each area absorb some before rinsing. Dry well with a textured, fresh towel. Do this at least once a day., along with salt or clay baths 12 hours later. For severe infections, reapply a solution of borax or Epsom salt with a little sodium thiosulfate after bathing and let it dry. ( I have spent a fortune on way less effective ingredients.) This is a godsend. Thank you! ... show more
Reviewed in the United States on January 19, 2019 by Notadonna
    • Gets iodine stains out!
Gets out iodine stains! Our vet prescribed iodine to our dog and needless to say, he didn’t like it and slung iodine everywhere. This mixed with water removed the iodine when literally nothing else would work! Doesn’t take much.
Reviewed in the United States on May 3, 2025 by Mary
    • Not powdered, just crushed crystals like other (potentially less expensive) options
It didn't matter for my use case, but what I received was not powdered as the ad described. I used this to neutralize chlorine bleach residue after using bleach solution to sanitize some items. The crystals readily dissolved in water, so It worked fine for my needs, even if not as described.
Reviewed in the United States on November 13, 2023 by g
    • Fast shipping
Good product...dont take a long drive while taking this unless your wearing depends...cleans you out fast!!!
Reviewed in the United States on January 24, 2025 by Richard Sedenquist
    • Works great to lower chlorine in hot tub
Product did exactly what I needed it to do. It rapidly lowered the Chlorine levels in my hot tub.
Reviewed in the United States on June 21, 2025 by David
    • nice
great
Reviewed in the United States on September 27, 2025 by Kimani Benoit

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