Tesco Thick Bleach Lemon Safety Data Sheet May 2026

The Tesco Thick Bleach Lemon (also marketed as "Citrus") is a sodium hypochlorite-based disinfectant classified as corrosive. Core Safety Data (MSDS Summary)

Active Ingredients: Contains approximately 4.37% – 4.6% Sodium Hypochlorite. Other key components include Sodium Hydroxide (<1.0%) and Anionic Surfactants (<5%). Hazard Classification: Health: Causes severe skin burns and serious eye damage. Physical: Corrosive to metals.

Environmental: Very toxic to aquatic life with long-lasting effects.

Chemical Reaction Warning: Do NOT use with other products. Mixing bleach with acids (like toilet descalers) releases toxic chlorine gas. Emergency Measures

Eye/Skin Contact: Rinse immediately with plenty of water, remove contaminated clothing, and call a Poison Center or doctor. Ingestion: Rinse mouth; do NOT induce vomiting.

Poisons Information: In the Republic of Ireland, contact the National Poisons Information Centre at 01 8092166. Safe Handling & Storage tesco thick bleach lemon safety data sheet

Handling: Use with protective equipment (gloves, eye protection) and store in a cool, dark place, ideally locked. Disposal: Follow local regulations. Official Safety Documentation

Detailed COSHH and Safety Data Sheets are available from Tesco or the manufacturer, Mirius. Tesco Thick Bleach 24 Hour Citrus 2Lt

* About this product. Description. Tesco thick bleach lemonKills 99.9% of bacteria and viruses* Eliminates germs and tough stains* Tesco Thick Bleach 24Hr Citrus 750Ml

contains Sodium Hypochlorite as its primary active ingredient. Unlike "thin" bleach, it includes gelling agents that allow it to cling to vertical surfaces like toilet bowls for longer contact time.

Active Disinfectant: Sodium Hypochlorite (typically 4.6g per 100g, or roughly 4.6% active chlorine). The Tesco Thick Bleach Lemon (also marketed as

Other Ingredients: <5% Anionic Surfactants, <5% Non-Ionic Surfactants, and Perfume (Lemon/Citrus).

pH Level: Highly alkaline (contains Sodium Hydroxide), which contributes to its corrosive nature. 2. Hazard Identification

Under CHIP and GHS regulations, this product is classified as a hazardous substance. Tesco Original (Fresh) Thick Bleach MSDS

A Safety Data Sheet (SDS) is a standardized document that outlines the properties, hazards, and safe handling procedures for a chemical product. Since formulations can change and specific batch data varies, you should always consult the official sheet provided by the manufacturer (Tesco) for the absolute latest information.

Below is a guide to the typical sections and hazards you will find on a Safety Data Sheet for Tesco Thick Bleach (Lemon), based on standard EU/UK regulations (REACH/CLP) for sodium hypochlorite-based cleaners. Keep in the original container (the yellow bottle

Storage

Tesco Thick Bleach Lemon degrades over time. Heat and light turn it into salt water and oxygen (rendering it useless).

  • Keep in the original container (the yellow bottle is UV-protective to a degree).
  • Keep cool (below 25°C). Do not store under the sink next to a hot water pipe.
  • Keep locked up away from children. The "lemon" scent is attractive to toddlers.
  • Shelf life: 6 months after opening (after that, it is just salty thick water with lemon perfume).

Introduction: Why You Need This Information

In almost every cleaning cupboard in the United Kingdom, you will find a bright yellow bottle of Tesco Thick Bleach Lemon. It is a staple for killing germs, removing stains, and whitening laundry. However, because it is a common household item, many consumers underestimate its potential danger.

If you have landed on this page searching for the "Tesco thick bleach lemon safety data sheet," you are likely one of three people:

  1. A professional cleaner or business owner who requires the SDS for COSHH (Control of Substances Hazardous to Health) compliance.
  2. A concerned parent or pet owner who has had a near-miss accident.
  3. A student or researcher looking for specific chemical data regarding Sodium Hypochlorite concentrations.

Crucial Note for Readers: Tesco is a retailer, not a manufacturer. The specific formulation of their own-brand bleach may change suppliers. The information below is based on the generic Safety Data Sheet for household bleaches containing Sodium Hypochlorite (5-15%) with lemon surfactants, compliant with Regulation (EC) No 1907/2006 (REACH) and UK CLP. For an official, legally binding SDS, you must contact Tesco directly or view the product packaging.

Chronic Effects:

  • Repeated exposure may cause dental erosion (inhalation of vapours in occupational settings) and lung function impairment.

4.4 Ingestion:

  • Do NOT induce vomiting. (Bleach is corrosive; vomiting causes further damage to the throat and mouth.)
  • Rinse mouth with water.
  • Give water or milk to drink only if the person is conscious and able to swallow.
  • Seek immediate medical attention – go to A&E or call 999.

Physical & chemical properties (typical)

  • Appearance: Clear to slightly coloured viscous liquid (thickened formulation), lemon fragrance.
  • Odour: Characteristic chlorine with lemon fragrance.
  • pH: Strongly alkaline (often >11).
  • Boiling/melting point: Aqueous solution — similar to water; decomposition on heating releases chlorine.
  • Solubility: Miscible with water.

Extinguishing Media:

  • Suitable: Water spray, carbon dioxide (CO2), foam, dry powder.
  • Unsuitable: None specifically, but avoid high-pressure jets that may spread the chemical.