Professional Zinc Alloy Surface Finishing Solutions
Sodium Nitrite
Sodium Nitrite
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Shipping & lead time: contact us for a quote. Packing and delivery terms depend on the product and destination.
Product description
Shipping & Return
Product Overview
Sodium Nitrite is a professional plating salt supplied by QLQ for zipper, hardware and metal-finishing plants. Standard packing: 25KG/BAG. Regular supply for customers in Bangladesh, Pakistan, India and other markets, with export-standard packing and documentation.
Product Identity (Encyclopaedia Card)
| Property | Value |
|---|---|
| Chemical name | Sodium Nitrite |
| Chemical formula | NaNO2 |
| CAS number | 7632-00-0 |
| Appearance | White to pale yellow crystalline granules |
| Grade / type | Technical grade, >=98% |
| Standard packing | 25 kg PP woven bag or kraft paper bag with PE inner liner; 25 kg fibre drum |
What it is and what it does. Sodium nitrite is the corrosion inhibitor added to alkaline cleaners and to rinse water, and the accelerator used in some phosphating and passivation systems.
- White to pale yellow granules, very soluble; it passivates steel surfaces so they do not flash rust between stages.
- Also used as the accelerator in nitrite-accelerated phosphating and as a colouring assistant in some antiquing baths.
- It is a nitrite: it can form nitrosamines with amines and must never be acidified in the presence of organic matter.
Typical Use in a Plating / Finishing Line
| Item | Typical guidance |
|---|---|
| Rinse-water inhibitor | 1-5 g/L at pH 8-9 to stop flash rust on steel |
| Cleaner inhibitor | 0.5-2 g/L |
| Analysis | Nitrite by permanganate or colorimetric titration |
Safety, Handling & Storage
| Item | Requirement |
|---|---|
| Hazard classification | Oxidiser + irritant (GHS03/GHS07) — strong oxidiser, may intensify fire |
| Personal protective equipment | Goggles, nitrile gloves, dust mask; avoid contact with skin and eyes |
| Spill / first aid | Sweep or dilute with water, do not mix with combustible material or reducing agents; rinse to effluent treatment |
| Storage | Cool, dry, ventilated store away from acids, reducing agents, solvents and combustible material; do not store next to heat sources |
| Transport | Classified and packed according to IATA/IMDG for the hazard class; UN number and packing group stated on the shipping documents |
Quality Documents Shipped With Every Batch
| Document | Comment |
|---|---|
| COA (certificate of analysis) | Provided with the shipment; batch traceable to the production date |
| MSDS (safety data sheet) | Provided with the shipment; batch traceable to the production date |
| Packing list | Provided with the shipment; batch traceable to the production date |
| Commercial invoice | Provided with the shipment; batch traceable to the production date |
| Certificate of origin on request | Provided with the shipment; batch traceable to the production date |
Buyer Questions We Answer Every Week
| Question | Answer |
|---|---|
| Why does the rinse stop protecting the parts? | The nitrite is consumed or the pH has fallen; check both and top up accordingly. |
| Are there restrictions? | Nitrite is regulated in effluent and in some markets; check the local limits before use. |
| Product Name | Sodium Nitrite |
| Category | Plating Salt |
| Standard Packing | 25KG/BAG |
| Net Weight | 25 KG per bag |
| Appearance | White to off-white crystalline powder or granules |
| MOQ | 1 drum / 1 bag |
| Delivery | 7-15 days after payment confirmation |
Key Specifications
| Item | Value |
|---|---|
| Purity / Assay | Industrial grade, COA available on request |
| Packaging Material | Woven bag with PE liner |
| Shelf Life | 12 months in sealed original packing |
| Origin | China |
| Documents | COA, MSDS, packing list, commercial invoice |
Packing & Storage
| Condition | Requirement |
|---|---|
| Temperature | 5-35 °C, away from direct sunlight |
| Humidity | Dry, ventilated warehouse; keep sealed against moisture |
| Stacking | Max 4 layers for drums, follow pallet markings for bags |
| Shelf Check | FEFO - first expired, first out |
Precautions
- Wear chemical-resistant gloves and safety goggles when handling
- Read MSDS before first use; keep away from incompatible materials
- Spill: collect with inert absorbent, do not wash into drains
- Store locked, out of reach of untrained personnel
FAQ
| Question | Answer |
|---|---|
| Can you provide COA / MSDS? | Yes, COA and MSDS are provided with every shipment. |
| What is the MOQ? | MOQ is 1 bag / 1 drum. Mixed loading of different chemicals is accepted. |
| Do you provide dosing guidance? | Yes, QLQ engineers provide free bath set-up and dosing consultation based on Hull-cell results. |
| How about shipping? | 7-15 days by sea or air depending on quantity and destination port. |
Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.
Specifying Sodium Nitrite for your line
Send the four details below and we confirm fit, packing and price the same working day.
- Application: which tank or process it serves.
- Dimensions or capacity: drawing preferred.
- Material: where it contacts chemicals or heat.
- Quantity: first order and expected annual use.
| What you send | What you get back |
|---|---|
| Part drawing or sample | Compatibility check and recommended settings |
| Output target per shift | Capacity, tank or rack count, manpower |
| Finish spec with tolerance | Control points and acceptance tests |
| Site conditions (power, water, space) | Layout proposal and utility requirements |
Buying questions we answer most
What is the minimum order quantity?
One carton or one unit for most items. Trial quantities are quoted separately from production volumes.
Can it be customised?
Dimensions, material and surface treatment can be adapted. Send a drawing or a sample and we confirm what changes and what stays standard.
What is the lead time?
Stock items ship within a week of confirmation; made-to-order items typically 20-35 days.
What documentation comes with the shipment?
Packing list, material certificate where applicable, and export documents prepared per destination.
Put Sodium Nitrite into a process
- Process overview - how each stage connects
- Plating workshop - rack and barrel line layout
- Painting workshop - spray, cure and colour control
- Product overview - what else the line needs
