# JSP & GTE Sodium Metabisulfite 5lb Bag Gold Precipitant Powder for Refining Recovery Aqua Regia

High-purity Sodium Metabisulfite (SMB) used for gold precipitation during the aqua regia refining process. This 5 lb resealable bag contains refining-grade Na₂S₂O₅, widely used by gold refiners, jewelers, and metal recovery professionals to recover dissolved gold from solution.

Sodium Metabisulfite is commonly added after filtration of the aqua regia solution to precipitate gold back into solid form during the refining process. This chemical is a standard reagent used in precious metal recovery and refining operations.

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## Product Details

Chemical Name: Sodium Metabisulfite  
Chemical Formula: Na₂S₂O₅  
CAS Number: 7681-57-4  
Purity: Refining / Reagent Grade  
Net Weight: 5 lb  
Appearance: White crystalline powder  
Packaging: Resealable bag for convenient storage

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## Common Uses

Gold precipitation from aqua regia solutions  
Precious metal recovery and refining  
Scrap gold and jewelry refining  
Electronic waste metal recovery  
Laboratory and chemical processing

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## Typical Use in Gold Refining

Sodium Metabisulfite is used to precipitate dissolved gold from filtered aqua regia solutions during the refining process.

The amount used will vary depending on the quantity of dissolved metal and solution concentration.

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## Safety & Handling

Use in a well-ventilated area  
Wear appropriate protective equipment including gloves and eye protection  
Store in a cool, dry place  
Keep out of reach of children  
Not intended for food or medical use

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## Shipping Information

Ships within the United States only  
Orders are carefully packaged for safe transport  
Most orders ship same or next business day

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Trusted by refiners, jewelers, and precious metal recovery specialists.

If you have questions about refining supplies or product compatibility, feel free to contact us.

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**Trusted by refiners, jewelers, and e-waste processors nationwide.**  
Questions? We're happy to help.

## Details

- **Price:** 29.97 USD - 32.97 USD
- **Vendor:** GOLD TESTING EQUIPMENT
- **Type:** Gold Refining
- **Tags:** GOLD TESTING EQUIPMENT, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| GTE 5LB Sodium Metabisulfite - Gold Precipitant Mylar Bag | 29.97 USD | In stock |
| JSP 5LB Sodium Metabisulfite - Gold Precipitant Bag | 32.97 USD | In stock |

## Images

- JSP & GTE Sodium Metabisulfite 5lb Bag Gold Precipitant Powder for Refining Recovery Aqua Regia
- JSP & GTE Sodium Metabisulfite 5lb Bag Gold Precipitant Powder for Refining Recovery Aqua Regia
- JSP & GTE Sodium Metabisulfite 5lb Bag Gold Precipitant Powder for Refining Recovery Aqua Regia
- JSP & GTE Sodium Metabisulfite 5lb Bag Gold Precipitant Powder for Refining Recovery Aqua Regia
- JSP & GTE Sodium Metabisulfite 5lb Bag Gold Precipitant Powder for Refining Recovery Aqua Regia

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> Source: [Smart supply deals](https://smartsupplydeals.com/products/jsp-gte-sodium-metabisulfite-5lb-bag-gold-precipitant-powder-for-refining-recovery-aqua-regia)
> Updated: 2026-07-22