Calcium Carbonate

250g (8.8oz) - Container
500g (1.1lb) - Container
1kg (2.2lb) - Bag
2.5kg (5.5lb) - Bag


Calcium Carbonate is also known as chalk. It is a common assistant to harden water and hence deepen the colour of natural dyes such as madder and weld. It is also used to fix an aluminum acetate mordant or a ferrous mordant.

Available in different sizes in either a reusable/recyclable plastic container or reusable plastic bag. Our rates reflect a growing discount as the size increases.

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