Still looking for high-purity industrial grade sodium thiosulfate? You've come to the right place.

Our industrial grade sodium thiosulfate, also known as hypo, appears as colorless and transparent monoclinic crystals with a cool and bitter taste. It features high purity, slow deliquescence and fast solubility.

As a versatile inorganic salt, it serves as an essential fixing agent for darkroom photography and an efficient dechlorinating agent for water treatment. We mainly supply two types: sodium thiosulfate pentahydrate and anhydrous sodium thiosulfate. All products undergo strict quality control to ensure stable performance, and are sold in bulk to customers across the globe. As a professional wholesale supplier, we accept small trial orders and large-scale bulk purchases from various industries.

Product Parameters

Item	Specification
Iron (Fe) content	≤0.005%
Content of water-insoluble substances	≤0.05%
Chloride (as Cl⁻) content	≤0.05%
Sulfate (as SO₄²⁻) content	≤0.10%
Heavy metals (as Pb) content	≤0.002%
Arsenic (As) content	≤0.0002%

Application

modular-1

Water Treatment

Acts as an efficient dechlorination agent to remove residual chlorine in industrial wastewater and municipal water.

modular-2

Photography

Classic raw material known as Photographic Hypo, used for film developing and photo fixing.

modular-3

Textile Industry

Serves as bleaching agent and deoxidizer for textile fabrics.

modular-4

Food Industry

Food grade Sodium Thiosulfate is used as food additive and antioxidant.

Packaging & Delivery

Packaging and Storage

Regular Package: 25kg woven bag / plastic bag (inner plastic liner, outer woven bag)
Custom Package: 50kg bag, ton bag or small retail packages as requested
Loading: Bulk goods loaded in 20GP/40GP container for large orders

Procurement Support

Custom Particle Size: Sifting according to the mesh size of crystals as required by customers
Technical Documents: Batch quality inspection reports, product property specifications and application proportion guidelines are delivered together with goods
Transportation Guarantee: Classified as non-hazardous goods with fast land and sea transportation scheduling and full insurance coverage

Company Profile

Shandong Jiuchong Chemical Co., Ltd. is based in Weifang, Shandong, China. Founded in 2010, we have cooperated with 278 clients from 58 countries and regions, gaining wide recognition for competitive prices, stable quality and on-time delivery.
We supply high-quality and eco-friendly chemicals for global industrial and agricultural sectors, dedicated to improving people's living standards worldwide.

Our corporate mission: to be customers' top chemical
supplier, deliver sustainable value to all partners, and
build a satisfying working environment for employees.
We offer dependable, cost-effective quality products
to support your business expansion. As a reliable long-term
partner, we stand firmly alongside you for mutual growth.

Certifications

FAQ

Q: What is sodium thiosulfate?

A: Also known as hypo or sodium thiosulphate, it is a versatile inorganic salt. We supply two main types: sodium thiosulfate pentahydrate and anhydrous sodium thiosulfate.

Q: What grades do you provide?

A: We have industrial grade and food grade sodium thiosulfate for different usage demands. The main purity is ≥98%, and customized specifications are acceptable.

Q: Do you support small trial orders and bulk wholesale?

A: Sure. We accept both small trial orders and large bulk purchases, and provide favorable prices for wholesale orders.

Q: How to store sodium thiosulfate properly?

A: Please keep the product sealed, store in dry, cool and ventilated place, and avoid damp environment to prevent deliquescence.

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