This I/GCSE Chemistry blog post will look into the dangers of substances as well as the features of flames.
FLAMES
- Gas flames can be made much hotter by the introduction of more air.
- The hottest part of the blue flame is just above the cone of unburnt gas.
WHAT IS BURNING
- hydrocarbon= chemical that contains only carbon and hydrogen (e.g. gas cooker gas, candle wax).
- A large proportion of natural gas is methane CH4. Other members of this family are propane and butane.
Word equation for the process of burning: hydrocarbon + oxygen = carbon dioxide + water +e nergy
- This equation tells us that once lit, a hydrocarbon will burn and release energy.
- The fuel for you body is a carbohydrate.
The word equation that describes this is: carbohydrate + oxygen = carbon dioxide + water + energy
- Carbohydrates are a family of chemicals which include sugars.
HAZARD WARNING SYMBOLS
- highly flammable= hydrogen and hydrocarbons (propane, butane and acetylene.
- toxic= ammonia, chlorine and sodium hydroxide
- harmful= copper sulphate
- irritant= copper sulphate
- corrosive= nitric acid, sulphuric acid and alkalis (such as sodium hydroxide)
- oxidising= potassium permanganate and nitric acid
That is all!
References:
https://www.google.com/url?sa=i&url=https%3A%2F%2Ffavpng.com%2Fpng_view%2Fghs-toxic-pictogram-occupational-safety-and-health-chemical-hazard-sign-png%2F43Ar9MR4&psig=AOvVaw1vfSUaCrsAZh9-ndxRcGfd&ust=1629695342385000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCIiLgbTuw_ICFQAAAAAdAAAAABAU
https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.solvents.org.uk%2Fhydrocarbon-solvents%2F&psig=AOvVaw2uJ-J_zhYWLSu_4dNRh6Wc&ust=1629695452917000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCLjQnOfuw_ICFQAAAAAdAAAAABAO