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- Brand：hebei qujie
- Model：25kg/bag
- Purity：98%
- Cas：16731-55-8
- Createtime： 2026-06-03
- Updatetime： 2026-06-05
| useage | Food antioxidants, preservatives, bleaching agents, industrial water treatment, etc. |
| deliveryInfo | |
| appearance | white powder |
| aliasen | |
| supplyCapacity | 70T/Month |
| harbor | tianjin qingdao shanghai |
| minorder | 1KG |
Introduction:
The Product was colorless crystal or white crystalline powder with the relative density of 2.34 .The melting point was 150-190 oC (decomposition). The product had a flavor of and soluble in water with acidic aqueous solution, it was not soluble in ethanol. dioxide was released from acidic solution and oxidized to sulfate in the air.
Application:
1. Used as a food bleach, preservative and antioxidant. Long-term consumption of excessive dioxide food, will cause serious damage to the body, and may even cause cancer.
2. Used as analytical reagent. It is also used as a developing agent, reducing agent and bacterial inhibitor.
3. Potassium metabisulfite is used as an additive in thiosulfate silver plating, and its sodium salt is also used in the treatment of chromium-containing wastewater.
| Melting point | 190°C |
| density | 2.34 g/cm3 |
| vapor density | 2.3 (vs air) |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 0.1 M at 20 °C, clear, colorless |
| form | Powder/Solid |
| Specific Gravity | 2.3 |
| color | White to slightly yellow |
| Odor | Odorless |
| PH | 2.5-4.5 (25oC, 0.1M in H2O) |
| PH Range | 3-4.5 at 22.2 g/l at 25 °C |
| Water Solubility | Soluble in water. Insoluble in ethanol. |
| λmax | 267nm(H2O)(lit.) |
| Sensitive | Air Sensitive |
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
