---
product_id: 12167698
title: "Sodium Thiosulfate, Fine Crystals, 99.5% min., 500 Grams (1.1 lb.)"
brand: "chemcenter"
price: "$78.43"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/12167698-sodium-thiosulfate-fine-crystals-99-5-min-500-grams-1
store_origin: EC
region: Ecuador
---

# indefinite shelf life 500g package 99.5% purity Sodium Thiosulfate, Fine Crystals, 99.5% min., 500 Grams (1.1 lb.)

**Brand:** chemcenter
**Price:** $78.43
**Availability:** ✅ In Stock

## Summary

> 🔬 Elevate Your Chemistry Game with Sodium Thiosulfate!

## Quick Answers

- **What is this?** Sodium Thiosulfate, Fine Crystals, 99.5% min., 500 Grams (1.1 lb.) by chemcenter
- **How much does it cost?** $78.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/12167698-sodium-thiosulfate-fine-crystals-99-5-min-500-grams-1)

## Best For

- chemcenter enthusiasts

## Why This Product

- Trusted chemcenter brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Reliable Quality:** Trust in a product that delivers consistent performance every time.
- • **Unmatched Purity:** Experience the power of 99.5% minimum purity for superior results.
- • **Generous Quantity:** 500 grams of fine crystals to meet all your needs.
- • **Endless Shelf Life:** Stock up without worry—this product boasts an indefinite shelf life.
- • **Versatile Applications:** Perfect for a variety of uses, from chemistry experiments to water treatment.

## Overview

Sodium Thiosulfate, Fine Crystals, 99.5% min., 500 Grams (1.1 lb.) is a high-purity chemical compound ideal for various applications, featuring an indefinite shelf life and versatile usability.

## Description

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

## Features

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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00JERVY5A |
| Best Sellers Rank | #19,762 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #19 in Analytical Reagents |
| Date First Available | June 16, 2012 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.1 pounds |
| Manufacturer | RND Center Inc. |
| Product Dimensions | 3 x 3 x 5.5 inches |

## Product Details

- **Brand:** ChemCenter
- **Item Weight:** 500 Grams
- **Molecular weight:** 84.01
- **Package Information:** Bottle
- **Percentage assay:** 99.5

## Images

![Sodium Thiosulfate, Fine Crystals, 99.5% min., 500 Grams (1.1 lb.) - Image 1](https://m.media-amazon.com/images/I/617hXRA+YKL.jpg)

## Questions & Answers

**Q: Can this be used for dechlorinating tap water for aquariums?**
A: I use this product for getting stains and yellow spots out of table linens.

**Q: expiration date?**
A: Most minerals do not expire because they are natural elements, furthermore vitamins don't really expire they may lose some potency

**Q: Where in the bottle is the expiration date or manufacture date? I dont see it anywhere**
A: I don't see a date. My last purchase was May, 2019 and it still seems to be working fine. I'm reading information from different data sources for an expiration of 12 to 18 months.

**Q: Is this food grade?**
A: I don't think sodium Thiosulfate is good for the human body.   In fact I actually think it's bad because all I use it for putting patina on metals.  But I'm not an expert on what's a poison, or a chemist.  But I wouldn't eat it or feed it to anyone I loved unless I did some serious research on what it does to the human body with an experienced chemist or an MD who's a poisons expert.

## Frequently Bought Together

- Sodium Thiosulfate, Fine Crystals, 99.5% min., 500 Grams (1.1 lb.)
- Silver Nitrate Crystal Powder 10 Grams / >99.9% Pure ACS Grade / 10g
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**Shop now:** [https://www.desertcart.ec/products/12167698-sodium-thiosulfate-fine-crystals-99-5-min-500-grams-1](https://www.desertcart.ec/products/12167698-sodium-thiosulfate-fine-crystals-99-5-min-500-grams-1)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-10*