Potassium Disulfite(CAS 16731-55-8)
| Purity | Grade | Package | Stock | Price | Quantity |
| 97% | RG | 100G | In Stock | 3 USD
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| 97% | RG | 500G | In Stock | 6 USD
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| 97% | RG | 2.5KG | In Stock | 20 USD
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| 97% | RG | 25KG | In Stock | 191 USD
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Quality System
Applications of 16731-55-8
| Industry | Application | Process |
|---|---|---|
| Food Processing | Preservative, Antioxidant | Used in wine, fruit juice, jams, and similar products to inhibit microbial growth and prevent enzymatic browning |
| Food Processing | Bleaching Agent | Applied during processing of dehydrated vegetables, candied fruits, and similar products for color retention and bleaching |
| Food Processing | Dough Conditioner | Used in biscuits, noodles, and other wheat-based products to improve dough quality |
| Aquaculture | Oxygenation Agent, Water Purifier | Releases oxygen to enhance dissolved oxygen levels in aquaculture water and regulate water quality |
| Pharmaceutical Industry | Active Pharmaceutical Ingredient (API) or Excipient | Used as a synthetic intermediate (e.g., in sulfonamide drug production) or as an excipient |
| Photographic Industry | Developing Solution Stabilizer | Acts as an antioxidant in film developing solutions to prevent oxidation of developing agents |
| Textile Dyeing and Printing | Deoxidizing Bleach Additive | Applied after fabric bleaching to remove residual hydrogen peroxide and prevent fiber damage |
| Pulp and Paper Industry | Lignin Removal Agent | Used during pulping or bleaching stages to facilitate lignin removal |
| Chemical Manufacturing | Reducing Agent | Employed as a reducing agent in various chemical synthesis reactions |
| Water Treatment | Corrosion and Scale Inhibitor | Used as a corrosion inhibitor in industrial recirculating cooling water systems |
Physical and chemical properties of 16731-55-8
Decomposition |
150 °C |
|---|---|
Density |
Relative density (water = 1): 2.34 |
Exact Mass |
221.84600 |
LogP |
0.27220 |
Melting Point |
Decomposes at approximately 150 °C |
Merck |
14,7645 |
Molecular Formula |
K2O5S2 |
Molecular Weight |
222.32400 |
Odor |
Pungent, sharp odor |
pH |
2.5-4.5 (25℃, 0.1M in H2O) |
pH Range |
3-4.5 at 22.2 g/l at 25 °C |
PSA |
124.92000 |
Sensitivity |
Air Sensitive |
Stability |
When stored at a maximum temperature of 25 °C and a maximum relative humidity of 45%, the shelf life is 6 months. |
Storage condition |
Store at +5°C to +30°C. |
Vapour density |
2.3 (vs air) |
Water Solubility |
H2O: 0.1 M at 20 °C, clear, colorless |
λmax |
267nm(H2O)(lit.) |
Q&A for CAS 16731-55-8
1. How can I verify product quality?
Every batch of our Chemical Reagents is tested to meet ISO 9001 standards. We provide COA & NMR & SDS Provided with each shipment. Batch COA available for verification, and third-party retesting is supported. A full refund is offered if our data is incorrect.
2. What is the delivery time?
Orders from Ready stock / In stock items typically Ships Tomorrow via Fast Shipping via FedEx/DHL/UPS. International deliveries usually arrive within 7 business days, subject to customs clearance.
3. What if the received product doesn’t meet quality standards?
If your Lab Grade Chemical Reagents do not match the Batch COA available, we will issue a replacement or a full refund upon verification.
4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged following international regulations. We provide SDS Provided with all hazardous shipments to ensure safe and compliant transport.
5. Do you offer technical support?
Yes. Our Lab Supplier team is available to assist with questions about product usage, storage, Lab Grade requirements, applications, and more.
6. Are volume discounts available?
Yes. For bulk orders of Chemical Reagents, we offer competitive pricing. Submit a quotation request and we’ll provide a tailored offer.
7. Do you provide samples?
Yes, samples are available for selected Lab Grade products. Please submit a request to confirm availability and specifications.
8. Do you have products in stock?
Yes. Items labeled In stock / Ready stock on our website are available for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.
9. Can you customize purity or packaging?
Yes. We support customization of Lab Grade purity, packaging size, and special testing requirements. Share your needs and we’ll provide a tailored solution.
10. Is the COA consistent with the shipped batch?
Yes. Batch COA available matches the actual shipment. COAs shown online are for reference or from previous batches.
11. Do you support long-term supply agreements?
Yes. We offer Lab Supplier services for stable batch consistency, pricing agreements, and safety stock for long-term customers to ensure uninterrupted supply.
12. What payment methods do you accept?
We accept Pay Local Currency via bank transfer (T/T), PayPal, and other methods. Credit terms are available for qualified long-term partners.
Download SDS of 16731-55-8
Pictograms |
 |
|---|---|
Signal Word |
Danger |
Hazard Statements |
H315 Causes skin irritation H318 Causes serious eye damage H335 May cause respiratory irritation |
Safety Data Sheet |
Download COA of 16731-55-8
Operate under the ISO 9001 system
