Sodium tetraborate decahydrate
- Createtime： 2026-04-14
- Updatetime： 2026-04-15
Product Details
| useage |
Industrial use
|
| deliveryInfo |
|
| appearance |
powder
|
| Molecular Weight |
381.37
|
| aliasen |
|
| supplyCapacity |
50000MT/Month
|
| harbor |
Qingdao,China
|
| minorder |
1KG
|
| Appearance |
Colorless crystal or white crystalline powder
|
Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Sodium tetraborate decahydrate
CAS No.: 1303-96-4
Molecular Formula: Na2B4O7·10H2O
Molecular Weight: 381.37
Physical and Chemical Properties
- Appearance: Colorless transparent crystal or white crystalline powder
- Melting Point: 75 °C (loses crystal water)
- Density: 1.73 g/cm3
- Solubility: Soluble in hot water, glycerin; slightly soluble in cold water; insoluble in ethanol
- pH Value: 9.0 - 9.6 (1% aqueous solution)
- Stability: Easy to lose crystal water gradually when exposed to dry air. Stable under normal temperature, avoid high temperature, strong acid and strong oxidants.
- Odor: Odorless
Application
- Glass and ceramic industry: Main raw material for heat-resistant glass, optical glass and ceramic glaze, improving product toughness and luster.
- Detergent & cleaning agent: Used as buffering agent, surfactant and antiseptic in daily detergents and industrial cleaners.
- Agriculture: Applied as boron fertilizer to supplement crop trace elements and promote plant growth.
- Chemical industry: Used as flux, bleaching agent and organic synthesis auxiliary reagent.
- Textile industry: Used for textile bleaching, sizing and fire-retardant finishing.
- Laboratory reagent: Common analytical reagent and buffer solution preparation material.
Storage Condition
Seal the package tightly. Store in a cool, dry and ventilated warehouse. Prevent moisture absorption and efflorescence. Keep away from heat sources, direct sunlight, acids and oxidizing agents. Do not store together with food and feed.
Certificate of Analysis
| Item | Specification | Test Result | Method |
| Product Name | Sodium tetraborate decahydrate | Compliant | Visual & Identification |
| CAS No. | 1303-96-4 | 1303-96-4 | Standard |
| Molecular Formula | Na2B4O7·10H2O | Na2B4O7·10H2O | Standard |
| Molecular Weight | 381.37 | 381.37 | Standard |
| Appearance | Colorless crystal or white crystalline powder | White crystalline powder | Visual Inspection |
| Main Content (Na2B4O7·10H2O) | ≥99.0% | 99.53% | Titration Method |
| Water Insoluble Matter | ≤0.04% | 0.01% | Gravimetric Method |
| Chloride | ≤0.01% | <0.002% | Turbidimetric Method |
| Sulfate | ≤0.02% | <0.005% | Turbidimetric Method |
| Calcium | ≤0.005% | <0.001% | Atomic Absorption Spectrometry |
| Iron | ≤0.001% | <0.0003% | Spectrophotometry |
| Heavy Metals | ≤10 ppm | <3 ppm | Atomic Absorption Spectrometry |
| pH (1% Solution) | 9.0 - 9.6 | 9.3 | Potentiometric Method |
Conclusion: The product complies with the above specifications.
Authorized by: QC Department
