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ChemCenter

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

  • Based on 483 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Oct 23
Order within 8 hours and 18 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 g


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 g


Brand Name: ChemCenter


Manufacturer: RND Center Inc.


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 23

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

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Top Amazon Reviews

    • Works great
Excellent product at a good price
Reviewed in the United States on April 20, 2026 by Amazon Customer
    • 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
    • excellent product
A little sodium thiosulfate goes a long ways...
Reviewed in the United States on April 7, 2026 by Curtiss Adam
    • Huge Money Saver
Huge money saver- mix 4oz by weight into 1 gallon of distilled water. Use to dechlorinate tap water to fill aquariums. 5ml of this solution will treat 10 gallons of tap water.
Reviewed in the United States on May 24, 2025 by marc
    • 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
    • Mineral rich
I had never considered Irish Moss before since it wasn't readily available so I used other herbs like black walnut hull for the iodine content, etc. I started taking this when it arrived, 2 days ago, and an hour or 2, after I took it, I could feel it working in my pelvis/ovary areas. I'm post menopause, so my organs must have really needed the minerals in this. I also went ahead and opened 3 capsules and added them to a little distilled water and mixed it and waited for the absorption and rubbed it on my skin. It made my skin beautiful and plump, and I already had nice skin. I read how it benefits the thyroid with the T3 and T4 and all the endocrine glands, and how it kind of hydrates your skin, and just had to have it. ... show more
Reviewed in the United States on April 25, 2021 by Olga King
    • 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
    • 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

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