Professional Zinc Alloy Surface Finishing Solutions
Hydrochloric Acid
Hydrochloric Acid
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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
Hydrochloric Acid is a professional acid & solvent supplied by QLQ for zipper, hardware and metal-finishing plants. Standard packing: Standard export packing. 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 | Hydrochloric Acid |
| Chemical formula | HCl |
| CAS number | 7647-01-0 |
| Appearance | Colourless to pale yellow liquid |
| Grade / type | 31-33% technical grade |
| Standard packing | 25-50 kg steel or fibre drum, palletised for export |
What it is and what it does. Hydrochloric acid is the pickling and activation acid of the plating line - it removes rust and scale from steel and activates nickel, zinc and steel surfaces immediately before plating.
- Supplied as a 31-33% solution; the industrial grade has a pale yellow tint from traces of iron, which does not affect pickling.
- It is the acid normally used for the acid dip between the alkaline clean and the plating tank, at 5-10% at room temperature.
- Chloride carry-over into the nickel tank causes pitting, so the rinse after the acid dip must be effective.
Typical Use in a Plating / Finishing Line
| Item | Typical guidance |
|---|---|
| Acid dip / activation | 5-10% v/v at room temperature for 30-60 seconds |
| Steel pickling | 15-30% at room temperature with an inhibitor |
| Analysis | Titration with sodium hydroxide; iron by titration or AAS |
Safety, Handling & Storage
| Item | Requirement |
|---|---|
| Hazard classification | Corrosive (GHS05) — causes severe skin burns and eye damage |
| Personal protective equipment | Face shield + chemical goggles, acid-resistant gloves (nitrile/PVC), rubber apron and boots; local exhaust ventilation |
| Spill / first aid | Neutralise carefully with sodium carbonate or lime, then collect with inert absorbent; never add water to the concentrate |
| Storage | Store in original HDPE/PP containers, upright, in a cool ventilated area away from alkalis, cyanides, oxidisers and metals; bunded floor recommended |
| 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 pickling rate slow down? | Iron build-up and acid depletion; dump part of the bath and replenish when the iron exceeds the working limit. |
| Which inhibitor should I use? | A pickling inhibitor designed for hydrochloric acid; it also reduces the hydrogen embrittlement risk on high-strength steel. |
| Product Name | Hydrochloric Acid |
| Category | Acid & Solvent |
| Standard Packing | Standard export packing |
| Net Weight | 25 KG per bag |
| Appearance | Clear to pale yellow liquid |
| 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. |
Related Reading
What Would You Like to Solve?
QLQ supplies the full line — equipment, chemistry and the working documents that make them run — to hardware and zipper factories in 60+ global markets. Contact us to discuss your application, or explore the complete solutions.
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 Hydrochloric Acid for your line
Chemical fit is decided by the bath, not by the label. Send these four items and we confirm the operating window before you buy.
- Current bath: supplier, TDS and working concentration.
- Process: rack or barrel, temperature, current density.
- Substrate: zinc alloy, steel, brass or ABS.
- Complaint: the defect you are trying to solve, with photos.
| 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
Is the SDS available before we order?
Yes. SDS and COA are issued per lot. Tell us the destination country so the SDS is supplied in the required format and language.
Can we get a trial quantity first?
Yes. Trial packs are quoted separately and shipped with the analytical method, so your lab can verify the material against the current bath before switching.
What packing and shelf life should we expect?
Standard export packing in drums or jerry cans with inner liner. Shelf life depends on the product - typically 12 months in a closed container, stored away from heat and direct sunlight.
How is it shipped - is it dangerous goods?
Some products are classed as dangerous goods and need the correct UN packing and documentation. We confirm the classification and the shipping route before quoting freight.
Can you match a competitor's additive?
Send the TDS and a bath sample. We compare the operating window and analytical method, then run a Hull cell panel before recommending a replacement.
Put Hydrochloric Acid 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
