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Salt

Contents

Key Stage 2

Meaning

Salt usually refers to the small white grains added to food to improve the flavour.

About Salt

Table salt is small white crystals.
Not all salts are the same as table salt and most types of salt are not safe to eat.

Key Stage 3

Key Stage 4

Meaning

Salts are a group of chemicals made in neutralisation reactions.

About Salt

There are many different salts, most of which are harmful to humans.
Halides Sulphates Nitrates

Lithium Fluoride - LiF

Sodium Chloride - NaCl

Magnesium Bromide - MgBr2

Calcium Iodide - CaI2

Potassium Sulphate - K2SO4

Aluminium Sulphate - Al2(SO4)3

Iron Sulphate - Fe2(SO4)3

Copper Sulphate - CuSO4

Beryllium Nitrate - Be(NO3)2

Ammonium Nitrate - NH4NO3

Potassium Nitrate - KNO3

Zinc Nitrate - Zn(NO3)2

References

AQA

Salts, page 129, GCSE Combined Science; The Revision Guide, CGP, AQA
Salts, page 247, GCSE Combined Science Trilogy 1, Hodder, AQA
Salts, pages 114, 280, GCSE Chemistry, Hodder, AQA
Salts, pages 125, 130-132, 134-136, GCSE Combined Science Trilogy; Chemistry, CGP, AQA
Salts, pages 147, 155-157, 159-161, GCSE Chemistry, CGP, AQA

Edexcel

Salts, pages 105, 107-109, GCSE Combined Science; The Revision Guide, CGP, Edexcel
Salts, pages 118-132, 149-153, GCSE Chemistry, CGP, Edexcel
Salts, pages 43, 45-47, GCSE Chemistry; The Revision Guide, CGP, Edexcel
Salts, pages 56, 130, GCSE Chemistry, Pearson, Edexcel
Salts; insoluble, page 69, GCSE Chemistry, Pearson, Edexcel
Salts; soluble, pages 57, 65, GCSE Chemistry, Pearson, Edexcel

OCR

Salts, pages 112-115, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR
Salts, pages 120-121, 125, Gateway GCSE Biology, Oxford, OCR
Salts, pages 45, 46, 52, 53, 57, 81, Gateway GCSE Chemistry; The Revision Guide, CGP, OCR
Salts; desalination of water, pages 259, 270, Gateway GCSE Chemistry, Oxford, OCR
Salts; electrolysis of molten salt, pages 122-123, Gateway GCSE Chemistry, Oxford, OCR
Salts; electrolysis of solutions, page 125, Gateway GCSE Chemistry, Oxford, OCR
Salts; from acid/base reactions, pages 114-115, 276-277, Gateway GCSE Chemistry, Oxford, OCR
Salts; from acid/metal reactions, pages 117, 277, Gateway GCSE Chemistry, Oxford, OCR
Salts; halogen displacement reactions, pages 136-137, 276, Gateway GCSE Chemistry, Oxford, OCR
Salts; rusting metal, page 219, Gateway GCSE Chemistry, Oxford, OCR