SODIUM PHOSPHITE-5-HYDRATE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 13517-23-2 |
| Product name | SODIUM PHOSPHITE-5-HYDRATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for SODIUM PHOSPHITE-5-HYDRATE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk SODIUM PHOSPHITE-5-HYDRATE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of SODIUM PHOSPHITE-5-HYDRATE
| Industry | Application | Process |
|---|---|---|
| Chemical | Reducing agent | Used as a reducing agent in organic synthesis to convert peroxides or halogenated compounds to corresponding alcohols or hydrocarbons |
| Water treatment | Antioxidant and metal ion stabilizer | Added to recirculating cooling water systems to suppress oxidation reactions and stabilize metal ions, thereby preventing equipment corrosion |
| Electroplating | Bath additive | Employed as an auxiliary component in electroless nickel plating processes to improve coating uniformity and density |
| Textiles | Bleach stabilizer | Used in hydrogen peroxide bleaching to control decomposition rate, enhancing bleaching efficiency and fiber protection |
| Pharmaceuticals | Intermediate or excipient | Involved in certain drug synthesis pathways as a phosphorus source or stabilizing component for phosphate ester preparation |
Manufacturing Quality Control of SODIUM PHOSPHITE-5-HYDRATE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Na2HPO3) | Acid-base titration | Direct titration with standardized HCl using methyl orange indicator; based on protonation of phosphonate anion. |
| Water content (total) | Karl Fischer titration | Volumetric or coulometric determination of water by reaction with iodine, sulfur dioxide, and base in methanol. |
| Heavy metals (Pb, Cd, Hg, As) | ICP-OES | Multi-element quantification after acid digestion by measuring atomic emission intensities at characteristic wavelengths. |
| Chloride impurity | Potentiometric titration | Titration with silver nitrate using silver electrode to detect endpoint via potential change. |
| Sulfate impurity | Gravimetric analysis | Precipitation as BaSO4 followed by drying and weighing of the precipitate. |
| Iron (Fe) content | AAS | Atomic absorption measurement of Fe at 248.3 nm after sample acid digestion and dilution. |
| pH of aqueous solution | pH meter measurement | Electrochemical measurement of hydrogen ion activity in a 1% w/v aqueous solution at 25 C. |
| Loss on drying | Thermogravimetric analysis | Mass loss measured after heating at 105 C for 2 hours under controlled atmosphere. |
| Appearance | Visual inspection | Assessment of physical state, color, and presence of foreign particles against standard reference. |
| Particle size distribution | Laser diffraction | Analysis of scattered laser light intensity vs. angle to determine volume-based particle size distribution. |
| Residue on ignition | Gravimetric analysis | Mass of non-volatile residue remaining after incineration at 600 C for 30 minutes. |
| Microbial contamination | Membrane filtration | Quantification of aerobic mesophilic microorganisms using nutrient agar culture and colony counting. |
Technical Specifications of SODIUM PHOSPHITE-5-HYDRATE
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Solubility | Freely soluble in water; insoluble in ethanol |
| Odor | Odorless |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of SODIUM PHOSPHITE-5-HYDRATE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of SODIUM PHOSPHITE-5-HYDRATE
Industrial SODIUM PHOSPHITE-5-HYDRATE Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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