The flammability range refers to the limits of concentration of a flammable substance in the air, within which it can ignite and burn. For the substances you mentioned:
1. Sulfuric Acid:
Sulfuric acid (H₂SO₄) itself is not flammable; it is a strong acid and can cause combustion of materials but does not burn. However, sulfuric acid can react violently with water and other materials, producing heat and potentially igniting combustible materials.
2. Methylated Spirit (Denatured Alcohol):
Methylated spirit, or denatured alcohol, generally contains ethanol mixed with other substances (like methanol) to make it unsuitable for drinking. The flammability range for ethanol is typically:
- Lower Explosive Limit (LEL): Approximately 3.3% by volume in air
- Upper Explosive Limit (UEL): Approximately 19.0% by volume in air
Since methylated spirit primarily consists of ethanol, these limits provide a general idea regarding its flammability. The specific composition of the methylated spirit can alter these values slightly.
Safety Note:
When handling any chemicals, always follow proper safety guidelines and refer to the Material Safety Data Sheets (MSDS) for information regarding hazards, handling, and emergency measures.
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