Because it is "thick," it does not run; it sits in a gel-like blob.
A proper SDS tells you:
Safety Guide: Tesco Thick Bleach Lemon Tesco Thick Bleach Lemon tesco thick bleach lemon safety data sheet
The SDS for Tesco Thick Bleach (Lemon) classifies the product primarily as a substance under the Classification, Labelling and Packaging (CLP) Regulation (EC) No 1272/2008, which aligns with the UN’s Globally Harmonized System (GHS). The key hazard categories include: Skin Corrosion (Category 1A), Serious Eye Damage (Category 1), and Hazardous to the Aquatic Environment (Acute Category 1). Additionally, the product may release chlorine gas if mixed with acids or ammonia, leading to acute toxicity via inhalation. The lemon fragrance, while aesthetically pleasing, does not mitigate these hazards; the SDS explicitly warns that fragrances may cause respiratory sensitivity in susceptible individuals. Signal words on the SDS and product label include “Danger” and “Warning,” accompanied by hazard statements such as H314 (Causes severe skin burns and eye damage) and H400 (Very toxic to aquatic life). Because it is "thick," it does not run;