SPECIFICATION
| Index | Standard |
|---|---|
| Main content (as NAHSO3) ≥% | 99 – 99.5 |
| Water-insoluble ≤% | 0.03 – ≤ 0.01 |
| Chloride (Cl) ≤% | 0.05 – ≤ 0.03 |
| Iron (Fe) ≤% | 0.004 – ≤ 0.001 |
| Heavy Metal (Pb) ≤% | 0.001 – ≤ 0.0001 |
| Arsenic (As) ≤% | 0.0002 |
|---|
I. Introduction
 - Explanation of what Sodium Bisulphite BS is
 - Importance of Sodium Bisulphite BS in various industries
 - Purpose of the essay
II. Uses of Sodium Bisulphite BS
 - Food and beverage industry
 - Water treatment
 - Textile industry
III. Benefits of Sodium Bisulphite BS
 - Antioxidant properties
 - Preservative qualities
 - Odor remover
IV. Where to Find Sodium Bisulphite BS for Sale
 - Chemical suppliers
 - Online retailers
 - Local stores
V. Considerations before Purchasing Sodium Bisulphite BS
 - Purity of the product
 - Quantity needed
 - Safety precautions for handling and storage
VI. Conclusion
 - Recap of the importance and uses of Sodium Bisulphite BS
 - Recommendation for purchasing from reputable sources
 - Final thoughts on the topic







