Hydrochloric Acid 10%: Uses, Safety Tips, and Where to Buy in the UK

Hydrochloric Acid 10%, commonly referred to as muriatic acid or hydrogen chloride solution, is a powerful, industrial-grade chemical that plays a crucial role in various cleaning, maintenance, and treatment processes. While it’s traditionally seen in manufacturing and industrial contexts, this versatile acid is increasingly popular among individual customers in the UK for heavy-duty domestic tasks and DIY maintenance. Supplied in robust UN-approved bottles for maximum safety, this high-purity solution is now more accessible than ever through trusted UK chemical suppliers.

In this guide, we’ll cover everything you need to know about Hydrochloric Acid 10% – what it is, how it works, how to use it safely and effectively at home, and most importantly, where to buy Hydrochloric Acid 10% online in the UK.

What Is Hydrochloric Acid 10%?

Hydrochloric Acid 10% is a liquid solution containing 10% hydrogen chloride (HCl) by weight in water. It’s known for its high reactivity and is primarily used for tasks that require the removal of scale, rust, mineral deposits, or for the adjustment of pH in various systems. Unlike higher concentrations, the 10% formulation offers a safer yet still effective balance, making it more manageable for controlled applications.

This product is industrial-grade and supplied in corrosion-resistant, fluorinated HDPE containers that are UN-approved – a crucial detail that ensures chemical stability and safety during storage and transport. Whether you're a hobbyist, DIY enthusiast, or small business owner, the manageable size options (500ml, 1L, and 2L twin packs) make it easy to use in non-industrial settings.

Why Choose Hydrochloric Acid 10%?

The 10% concentration is powerful enough to dissolve scale, rust, and metal oxides effectively, yet diluted enough to be used with appropriate precautions in home and workshop settings. Unlike stronger acids, it doesn’t require extensive neutralisation processes after use, and it allows users to maintain more control during application.

• High purity for consistent results
• Ready-to-use formulation – no need for further dilution in most cases
• Available in convenient consumer-friendly sizes
• Supplied in secure, chemical-resistant packaging

Practical Uses for Individual Customers in the UK

1. Cleaning Rusty Tools and Metal Surfaces

Over time, metal tools and surfaces accumulate rust due to oxidation. Hydrochloric Acid 10% is highly effective in dissolving this rust and restoring the surface to its original condition.

Tip:

• Prepare a 10% acid bath by mixing 100ml of HCl 10% with 900ml of water (always add acid to water, not the other way around).
• Submerge the rusty item for 2–3 minutes or apply with a brush.
• Scrub gently with a wire brush and rinse thoroughly with distilled water.
• Dry immediately to prevent re-oxidation.

2. Removing Limescale in Bathrooms and Kitchens

Limescale buildup from hard water can be stubborn and unsightly. Hydrochloric Acid 10% works quickly to dissolve calcium carbonate deposits on taps, tiles, kettles, and toilets.

How to Use:

• Apply 20–50ml of HCl 10% directly to the affected area.
• Allow it to sit for 2–5 minutes. You’ll notice fizzing as it reacts with the limescale.
• Scrub with a nylon brush or sponge.
• Rinse thoroughly with water to remove all residue.

3. Cleaning Patio, Brick, and Concrete Surfaces

Outdoor surfaces like patios and brick walls are prone to algae, moss, and efflorescence. Hydrochloric Acid 10% can clean and brighten these areas effectively.

• Dilute 1 part HCl 10% to 9 parts water.
• Apply with a plastic sprayer or brush.
• Let sit for a few minutes, then scrub and rinse with a garden hose.

4. pH Adjustment in Home Water Systems or Aquariums

Hydrochloric Acid 10% is often used to lower the pH of water systems in controlled environments like pools, aquaponics setups, and fish tanks.

• Always test the pH before adjusting.
• Add 10–25ml of HCl 10% per 100L of water, depending on starting pH.
• Mix thoroughly and retest after a few hours.

5. Etching and Preparing Metal for Painting or Coating

To ensure proper adhesion of paint or coatings on metal, surface preparation is crucial. Hydrochloric Acid 10% removes contaminants and roughens the surface for better bonding.

• Use undiluted or slightly diluted HCl 10%
• Brush or immerse the metal for 1–2 minutes
• Neutralise with a sodium bicarbonate solution and rinse
• Dry thoroughly before painting or priming

Essential Safety Tips

• Wear chemical-resistant gloves, goggles, and long sleeves
• Work in well-ventilated areas or outdoors
• Avoid inhaling fumes – consider a mask in enclosed spaces
• Store in original, tightly sealed UN-approved bottles
• Keep away from children, pets, and direct sunlight

Where to Buy Hydrochloric Acid 10% Online in the UK

You can order Hydrochloric Acid 10% – Buy Online UK directly from HD Chemicals. This UK-based supplier offers secure delivery and compliance with all local chemical transport regulations.

• 500ml – Ideal for light cleaning or first-time use
• 1L – Suitable for general household or garage tasks
• 2L (2 x 1L twin pack) – Perfect for regular or multiple uses

Disposal and Environmental Safety

• Neutralise small quantities with baking soda before disposal
• Never pour down the drain unless neutralised
• Contact your local hazardous waste authority for disposal guidance

Alternatives for Lighter Cleaning Tasks

• Citric Acid: Safe for descaling kettles or coffee machines
• White Vinegar: Good for light limescale, but less powerful
• Baking Soda: Ideal for mild cleaning and deodorising

Frequently Asked Questions (FAQ)

1. What is Hydrochloric Acid 10% used for?
   Cleaning metal, descaling, pH adjustment, and surface preparation.
2. Is Hydrochloric Acid 10% safe for home use?
   Yes, with proper protective gear and usage practices.
3. Can I use it for my swimming pool?
   Yes, but dose carefully and confirm suitability for your system.
4. How do I dilute Hydrochloric Acid safely?
   Always add acid to water, not the other way around.
5. What type of container should it be stored in?
   Only in fluorinated HDPE or glass containers.
6. Can I use it to clean bricks?
   Yes, it’s effective when properly diluted.
7. What should I do if I spill it?
   Neutralise with baking soda and clean thoroughly with water.
8. Is Hydrochloric Acid the same as muriatic acid?
   Yes, they are different names for the same substance.
9. How long will it last after opening?
   Up to 24 months if stored correctly.
10. Can it damage plumbing?
    Use with caution in drains – overuse can corrode certain pipes.

For industrial-strength results and reliable UK delivery, purchase your Hydrochloric Acid 10% industrial grade from HD Chemicals – your trusted UK chemical supplier.