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RHS 3102 > Liming Materials > Flashcards

Liming Materials Flashcards

1
Q

Hydrated lime - chemical name.

A

Calcium hydroxide

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2
Q

Hydrated lime

Advantage

A

Calcium hydroxide

Fast acting

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3
Q

Ground limestone or chalk

Chemical name

A

Calcium carbonate

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4
Q

Hydrated lime

Disadvantage

A

Calcium hydroxide

Effects do not last long in fast draining soils.

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5
Q

Ground limestone or chalk

Advantage

A

Natural and economic.
Slower acting so effects last longer.
Suitable for light sandy soils

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6
Q

Ground limestone or chalk
Calcium carbonate

Disadvantage

A

More calcium carbonate required than calcium hydroxide.

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7
Q

Dolomite lime

Chemical name

A

Magnesium carbonate

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8
Q

Dolomite lime

Advantage

A

Magnesium carbonate also provides magnesium

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9
Q

Dolomite lime

Disadvantage

A

Magnesium carbonate is more expensive than other liming agents

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10
Q

Neutralising value of Calcium hydroxide

A

NV 75

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11
Q

Neutralising value of Calcium carbonate

A

NV48

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12
Q

Neutralising value of Magnesium carbonate

A

NV 55

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RHS 3102 (21 decks)

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