Schenk & Hildebrandt Macroelements is supplied by HiMedia. It is available in the form of a white to off-white, homogenous, free flowing powder with a pH in the range of 4.5 to 5.4. Since this product is extremely hygroscopic, it is advisable to store it at 2-8C, in air tight containers. The composition (mg/ml) is as follows:
Potassium nitrate (2500.00)
Ammonium phosphate monobasic (300.00)
Calcium chloride.2H2O (200.00)
Magnesium sulphate (195.34)
Schenk & Hildebrandt macroelements has been specially formulated for plant cell, tissue and organ cultures. Potassium nitrate serves as the nitrate source.