“Gypsum: Essential for
Maximized
Water Use Efficiency and 40 Other Purposes”
This article was published in California Fresh Fruit Magazine, Water Management section, May 2008 (Read Article)
By Brent Rouppet, Ph.D., Soil Scientist
International and Domestic Agricultural Consultant
Nutrient Management and Production Specialist
Modesto, CA
Solubility of Cal-CM Plus™ (Concentrated Minerals)
All forms of Calcium Sulfate are water soluble.
- The 2003-2004 CRC Handbook of Chemistry and Physics reports the solubility of these minerals.
- The solubility of Calcium Sulfate (anhydrite) and the solubility of Calcium Sulfate dihydrate (gypsum) are 0.205 grams per 100 cubic centimeters.
- This is equivalent to about 23.8 milliequivalents per liter for Calcium Sulfate dihydrate (gypsum) and about 30.1 milliequivalents per liter for Calcium Sulfate (anhydrite).
- Even though Calcium Sulfate (anhydrite) and Calcium Sulfate dihydrate (gypsum) have the same solubility,
Calcium Sulfate (anhydrite) contains 26.5% more calcium sulfate than Calcium Sulfate dihydrate (gypsum).
Garn A Wallace, Ph.D.
Executive Director / Wallace Laboratories
El Segundo, CA 12/05/2003
