Chemistry 3
- Created by: Poopy
- Created on: 01-05-13 16:28
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- Chemistry 3
- Salts
- Uses
- Food industary
- Flavor food
- Source of chemicals
- Used to treat roads in winter
- Needs to be in your diet
- Risks
- Heart disease
- High blood pressure
- FSA
- limits how much is in food/ advises people
- Risks
- Food industary
- Extracting salts
- mining solid salt
- Mined salt, then either taken up in solid form or water pumped down and then evaporated off
- Evapouration
- Salt solution called brine is used, salt is extracted from the brine solution
- Environmental
- pumping water down mines could lead to collapse of buildings
- Salt can affect plants and animals by drying them up
- mining solid salt
- Uses
- Geological Processes
- E.g. -mountain building/ erosion/ sediment/ dissolving/ evaporation
- Sediment can use fossils to track movement of continents
- Convection currents
- Plate movement
- Similar rocks are found in different places of the world
- The world was once a mega continent
- Similar rocks are found in different places of the world
- Plate movement
- E.g. -mountain building/ erosion/ sediment/ dissolving/ evaporation
- Alkalis
- Neutralising acid
- chemicals that make/bind dyes to cloth
- Making soap
- Making glass
- Hydroxides and soluble carbonates are alkalis they neutralise acids
- Early attempts of making alkalis
- lots of hydrogen chloride gas released
- Large waste heaps were made
- Waste heaps decompose to release toxic hydrogen sulfide gas
- Modern Chlor-Alkali industary
- Brine is used
- Electrolysis
- Environmental impacts are monitored carefully
- Brine
- Products from brine
- Sodium hydroxide
- used to make soaps detergents paper and textiles
- Untitled
- Domestic drain cleaner
- Corrosive substance
- Hydrogen
- Flammable
- Used in processing hydrocarbon fuels, margarine, ammonia in Harber process
- Potential clean fuel for the future
- Chlorine
- Can be used as a bleach
- kill bacteria in drinking water
- Toxic gas
- Sodium hydroxide
- Products from brine
- Brine is used
- Risks of chemicals
- Stay in the environment for a very long time
- Can be carried for long distances in the atmosphere polluting more of earth
- Can accumulate in food chains
- Life cycle of a product
- making the material from raw materials
- Manufacture
- Use of product
- Disposal
- Use of product
- Manufacture
- The travelling with the product
- Amount of energy used in the four stages and with the transport inbetween
- making the material from raw materials
- Salts
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