
Fast, Safe Delivery
90% of orders are delivered
next-day by ADR-approved couriers
Quality Accredited
Accredited to ISO 9001, ISO 14001,
ISO 13485 and ISO 45001
Free Support
Free pre- and post-sales technical support from our expert team
Why Buy Hydrochloric Acid 4M (approx) Online from ReAgent Chemicals?
We supply hydrochloric acid 4M (approximately) in 2.5L containers, with bulk discounts available. This product is sold with a concentration ranging between 3.96M and 4.04M (full details can be found in our Sales Product Specification sheet available to download from our website).We also offer other options, from customised labelling to specific pack sizes. Contact us for further information or free technical advice.Safe Use of Hydrochloric Acid
Concentrated solutions of hydrochloric acid – commonly referred to as fuming hydrochloric acid – can release hazardous fumes when in contact with air.Even these fumes can have severe detrimental effects if inhaled or in contact with skin or eyes, with potential permanent effects on the respiratory tract.Symptoms range from simple irritation of the nose to pulmonary oedema, or mild dermatitis to severe skin burns.As such, it’s vital to follow safe procedures when handling this highly corrosive acid. A full MSDS sheet can be downloaded from our website.In addition, this compound must be stored in a well-ventilated area and away from strong oxidising agents, such as bleach (sodium hypochlorite, NaClO) or potassium permanganate (KMnO4). If mixed, chlorine gas is produced, which is also toxic.Use of Protective Clothing
Personal protective equipment is essential for all staff handling this chemical, including rubber gloves, eye goggles and chemical-resistant overalls and shoes to minimise the risk of injury in case of accidents.100% Quality Guarantee
All our products come with 100% quality guarantee and are usually shipped within 24 hours after purchase. If you need hydrochloric acid, in addition to 4M, we also offer a wide range of concentrations and quality to cover all your needs. A member of staff will be glad to answer any questions you may have about our products.Please note: we only deliver to registered UK businesses at non-residential addresses with a minimum order value of £100 before VAT
We only supply to mainland UK, contact us on 0800 9555 798 for rates to Ireland.Please notify us if you have specific delivery requirements such as restricted access, requirement for a tail-lift delivery vehicle or pallet truck. Failure to notify us of a special delivery instructions can incur additional charges from our carriers.Need Bespoke Chemicals?

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Hydrochloric Acid 4M (approx) Specification
| Description | Limits | Units |
|---|---|---|
| Molarity | 3.98 - 4.02 | M |
Hydrochloric Acid 4M (approx) Hazards
| Signal Word |
|---|
| Warning |
| BulkCode | Hazard Statement | Description |
|---|---|---|
| 1040 | H290 | May be corrosive to metals. |
| 1040 | H335 | May cause respiratory irritation. |
| 1040 | H315 | Causes skin irritation. |
| 1040 | H319 | Causes serious eye irritation. |
| 1040 | H290 | May be corrosive to metals. |
Hydrochloric Acid 4M (approx) Safety & Storage
| BulkCode | Precautionary Statement | Description |
|---|---|---|
| 1040 | P280 | Wear protective gloves/ protective clothing/ eye protection/ face protection. |
| 1040 | P305+P351+P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| 1040 | P501 | Dispose of contents/ container in accordance with local regulations. |
| 1040 | P261 | Avoid breathing vapour/ spray. |
| 1040 | P271 | Use only outdoors or in a well-ventilated area. |
| 1040 | P280 | Wear protective gloves/ protective clothing/ eye protection/ face protection. |
| 1040 | P305+P351+P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| 1040 | P501 | Dispose of contents/ container in accordance with local regulations. |
Hydrochloric Acid 4M (approx) Delivery
| ProductNumber | Shipping Statement | Description |
|---|---|---|
| 1.040 | Signal Word | Warning |
| 1.040 | UN Number | 1789 |
| 1.040 | ADR/RID Shipping Name | HYDROCHLORIC ACID |
| 1.040 | ADR/RID Shipping Class | 8 |
| 1.040 | ADR/RID Packing Group | II |

How do you calculate your delivery costs?
As many of the chemicals we supply are hazardous, we are legally obligated to use ADR licensed couriers who are specialists in carrying such goods. These specialist couriers cost more than regular delivery services, but your order will arrive safely and legally.
What is an ADR courier?
An ADR courier is specially trained and licensed to carry chemicals that are classed as hazardous for transport.
Can I collect my items from your warehouse?
Yes, but please contact us to prearrange this. Depending on the quantity of hazardous chemicals you want to collect, you may need to have applicable training or a current ADR licence to legally transport them away from our premises. We may not able to release goods without proof of this.
Can you deliver directly to my customers?
Yes, we can deliver directly to your customers with a delivery note that excludes invoice details, and we can add your logo and branding to the product labels. Contact us for more information.
How do I find out the delivery cost for my order?
If you want to find the exact delivery charge for an item or order, simply add the item or items you’re interested in to your basket and the delivery charge as well as any VAT will be calculated and itemised for you. No card details are taken at this point so you’re under no obligation to make a purchase.
How long does delivery take?
Firm delivery date within 24 hours. We always dispatch orders as soon as possible but please note that non-stock items can take around 5 days to reach you. Please contact us before ordering if you require an estimated delivery date or see our delivery information for more information.
Do you deliver on bank holidays?
Unfortunately not, our couriers only deliver on working days from Monday to Friday.
Can you ship to locations outside of mainland UK?
We cannot accept overseas orders on our website, however in some cases we are able to ship outside of mainland UK. Please contact us for further information.
Can I have a timed delivery slot?
We can offer an AM delivery service for some regions of the UK, please contact us for information before placing your order.
Hydrochloric Acid 4M (approx) FAQs
What concentrations of hydrochloric acid do you offer?
We offer a wide range of concentrations from 0.001M to 4M to 30% w/w solutions.What are the specifications of your hydrochloric acid?
Can you provide hydrochloric acid in large volumes?
Yes, you can order large volumes online or call our sales team on 0800 9555 798. We also offer bulk order discounts.What packaging options are available for hydrochloric acid?
We supply hydrochloric acid in both 2.5L and 25L containers, but we also offer a range of other pack sizes if needed, from a few hundred millilitres up to 1000L IBCs. You can also opt for personalised packaging and customised labelling.Can you provide a quote for hydrochloric acid?
Yes, please contact our friendly sales team on 0800 9555 798.How do you ensure the quality and safety of your hydrochloric acid?
We ensure quality and safety by providing up-to-date Safety Data Sheets (SDS). Every batch produced is checked in our QC laboratory and tested in accordance with our sales specification.Do you supply hydrochloric acid overseas?
Yes, we can ship hydrochloric acid overseas, and we can package for road, sea, or air freight.Are there any restrictions on the use of your hydrochloric acid?
Hydrochloric acid is a controlled chemical, so a declaration of use may be required.
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