
Hydrogen Peroxide 35%
Synonyms: H2O2
£24.60 – £90.14

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 Hydrogen Peroxide 35% Online from UK Chemical Suppliers, ReAgent Chemicals?
Hydrogen peroxide is a powerful oxidising agent supplied by ReAgent in a 35% concentration, making it suitable for a wide range of industrial and laboratory applications.At this strength, hydrogen peroxide is colourless, odourless, and slightly more viscous than water, but it must be handled with care due to its highly reactive nature.
Key properties of hydrogen peroxide 35% include:
- Chemical name: Hydrogen peroxide
- Chemical formula: H₂O₂
- Concentration: 34.8% – 35.6%
- Appearance: Clear, colourless liquid with a faint odour
- Impurities: Typically contains <10ppm chloride and <1000ppm non-volatile matter
- Reactivity: Strong oxidiser; decomposes readily in the presence of heat, light, or contaminants
- CAS number: 7722-84-1
Applications of Hydrogen Peroxide 35%
Hydrogen peroxide at 35% concentration is valued across multiple industries for its oxidising, bleaching, and disinfecting properties:- Textiles & Paper – Used in bleaching processes for fabrics and pulp without the environmental drawbacks of chlorine-based methods
- Chemical Manufacturing – Serves as a reagent in oxidation reactions and the production of other peroxides
- Electronics & Semiconductors – Applied in cleaning and etching processes where high-purity chemicals are essential
- Water Treatment – Disinfects and controls biological growth in cooling towers and wastewater systems
- Food Processing & Healthcare – Used as a sterilising agent under controlled conditions to ensure hygiene and safety
- Commercial Cleaning – Breaks down organic matter and neutralises odours in large-scale cleaning applications
Safe Handling and Storage
Hydrogen peroxide should be kept in a dry, well-ventilated storage area and positioned away from any flammable or combustible materials. It must be stored in plastic or glass containers rather than metal, and because it breaks down when exposed to light, it should be placed in a dark, opaque container.Other safety measures include:
- Store in the original container, ensuring it is closed
- Maintain storage temperatures between 5°C and 25°C
- If transferring to another container, use compatible materials (preferably plastic or glass)
- Avoid using metal containers
- Consult the packaging manufacturer for suitable packaging
- Store away from heat, direct sunlight, and moisture
- Ensure stable storage conditions to prevent spillages
- Ideally, store in a bunded area or use protective measures like a sump pallet or storage tray
Why Choose ReAgent Chemicals for Hydrogen Peroxide 35%?
With almost 50 years of experience, ReAgent offers hydrogen peroxide solutions in pack sizes to suit both laboratory and industrial needs. When you order from us, you benefit from:- Discounts on bulk orders
- Bespoke packaging and labelling options
- Reliable nationwide delivery with ADR-registered couriers
- Free expert technical advice to support your purchase
Contact us today to place your order for hydrogen peroxide 35% or browse our full product range online.
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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Hydrogen Peroxide 35% Specification
| Description | Limits | Units |
|---|---|---|
| Assay | 34.8 - 35.7 | % w/w |
| Appearance | Clear & colourless, free from particles |
Hydrogen Peroxide 35% Hazards
| Signal Word |
|---|
| Danger |
| BulkCode | Hazard Statement | Description |
|---|---|---|
| 2797 | H302 | Harmful if swallowed. |
| 2797 | H335 | May cause respiratory irritation. |
| 2797 | H315 | Causes skin irritation. |
| 2797 | H318 | Causes serious eye damage. |
Hydrogen Peroxide 35% Safety & Storage
| BulkCode | Precautionary Statement | Description |
|---|---|---|
| 2797 | P280 | Wear protective gloves/ protective clothing/ eye protection/ face protection. |
| 2797 | P305+P351+P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| 2797 | P501 | Dispose of contents/ container in accordance with local regulations. |
| 2797 | P301+P330+P331 | IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. |
| 2797 | P280 | Wear protective gloves/ protective clothing/ eye protection/ face protection. |
| 2797 | P305+P351+P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| 2797 | P501 | Dispose of contents/ container in accordance with local regulations. |
Hydrogen Peroxide 35% Delivery
| ProductNumber | Shipping Statement | Description |
|---|---|---|
| 2.797 | CAS Number | 7722-84-1 |
| 2.797 | EC Number | 231-765-0 |
| 2.797 | Signal Word | Danger |
| 2.797 | UN Number | 2014 |
| 2.797 | ADR/RID Shipping Name | HYDROGEN PEROXIDE, AQUEOUS SOLUTION |
| 2.797 | ADR/RID Shipping Class | 5.1 |
| 2.797 | 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.
Hydrogen Peroxide 35% FAQs
What are the different strengths or grades of hydrogen peroxide available?
We offer hydrogen peroxide in any concentration at or below 35% (20 vols), catering to a variety of applications.Do you sell food-grade hydrogen peroxide?
Yes, we provide aseptic grade hydrogen peroxide which is used in the sterilisation of food packaging, ensuring safety and compliance in the food industry.Can I buy hydrogen peroxide in bulk quantities?
Yes, we can supply hydrogen peroxide in bulk quantities. Please get in touch with our team on 0800 9555 798 to discuss your bulk requirements and explore available discounts.How do I store and handle hydrogen peroxide safely?
Safe storage and handling details are outlined in the MSDS for hydrogen peroxide. It's crucial to follow these guidelines to ensure safety.How do I place an order for hydrogen peroxide if I can’t place the order on your website?
If you can’t place an order online, please call our customer service team directly to place your order over the phone on 0800 9555 798.What is the current availability of different hydrogen peroxide products?
We keep standard grades of hydrogen peroxide in stock, so most orders can be dispatched within 24 hours. Please contact us for specific availability.How long does it take to process and ship an order of hydrogen peroxide?
Orders are processed promptly, with most hydrogen peroxide products available for dispatch within 24 hours of order confirmation.Does the hydrogen peroxide ReAgent sells meet specific industry standards or certifications?
Our hydrogen peroxide meets stringent internal standards and specific industry certifications. We hold ISO 9001, 14001, 13485, and 45001 certifications.Who do I contact with questions about buying hydrogen peroxide?
For enquiries or to discuss your hydrogen peroxide needs, please contact our dedicated customer service team on 0800 9555 798.Can I request a custom concentration or formulation of hydrogen peroxide?
Yes, we are able to manufacture tailored concentrations of hydrogen peroxide to suit your specific needs. Please contact our team on 0800 9555 798 to discuss your requirements.
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