Often required to balance the nutrient solution pH after adding acidic fertilizer materials to reverse osmosis filtered or otherwise low alkalinity source water. 

This material is alkaline and caustic, so care must be taken to prevent the powder or liquid from splashing onto the skin or into the eyes. Adding the powder to water creates heat. DO NOT use hot water or add water to the powder. Add the powder slowly to cold water, otherwise violent boiling may occur.

This material is hygroscopic and must be kept stored dry in a sealed container.