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- Brand：hebei qujie
- Model：25kg/bag
- Purity：≥99%
- Cas：7772-98-7
- Createtime： 2026-06-04
- Updatetime： 2026-06-05
| useage | Photographic fixers, water treatment dechlorination, textile bleaching agents, etc. |
| deliveryInfo | |
| appearance | Colorless monoclinic crystals or white crystalline powder |
| aliasen | |
| supplyCapacity | 70T/Month |
| harbor | tianjin qingdao shanghai |
| minorder | 1KG |
Sodium Thiosulfate, CAS 7772-98-7, is commonly supplied as pentahydrate form featuring colorless transparent monoclinic crystals while its anhydrous variant exists as fine white crystalline powder. The industrial grade boasts purity no less than 98.0% and pharmaceutical/reagent grade reaches above 99.0%, with strictly controlled contents of heavy metals, chlorides and other impurities. It dissolves readily in water to form weakly alkaline solution and barely dissolves in alcohol, prone to deliquescence under humid air and chemical decomposition when contacting acids.
This inorganic salt is widely applied across multiple industries, serving as photographic fixer, residual chlorine remover for water treatment, cyanide antidote raw material in pharmacy, textile dechlorination reducer, precious metal leaching agent in mining and standard titration reagent for iodometric analysis, and it should be hermetically preserved in cool dry space separated from acidic chemicals.
| Items | Standard | Result |
| Na2S2O3.5H2O % | ≥ 99 | 99.20 |
| Water insoluble % | ≤ 0.03 | 0.02 |
| Na2S % | ≤ 0.003 | 0.001 |
| NaCl % | ≤ 0.20 | 0.11 |
| PH (200g/L) | 6.5 - 9.5 | 8.1 |
| Appearance | White Crystalline | |
packing:25kg/bag or according to the quantity you want
Delivery Detail: Some of the products can be supplied within 7 days on the strength of warehouse.
Receipt Reminder: Please check the package for intact condition before signing for delivery. Should you encounter missing items, quantity discrepancies or quality issues upon inspection, you may reject the delivery and get in touch with us. We will resolve the matter promptly.
Hebei Qujie Technology Co., Ltd. was established in 2021. It is a private enterprise integrating production, customization, sales, and trade. The company is located at No. 8 Jinhe East Road, Tongye Town, Luquan District, Shijiazhuang City. The factory has an elegant environment, complete equipment, and ample resources. The company possesses advanced technology and professional technical personnel. Since its establishment, the company's sales have steadily increased. The company adheres to the business philosophy of 'quality and price, customer first,' which is effectively reflected in its operations, and is committed to providing customers with sufficient supply and stable and reliable quality.
Business Philosophy: Integrity-based, win-win cooperation
Corporate Spirit: Integrity, gratitude, equality, mutual respect
Corporate Mission: Create opportunities for employees, create value for customers
We strive to meet your demands with the following services:
1.Customized solutions tailored to individual clients
2.Arrangement of third-party product inspections as required
3.Evaluation and mass production based on your counter samples
4.Favorable exclusive discounts for long-term partners
5.Round-the-clock customer support
