Sodium Bicarbonate technical grade is in the form of white to light brown minutely crystalline powder, free from visible contamination and other extraneous impurities. It is liable to lumping if exposed to dampness or subjected too high to a pressure. It begins to decompose slowly at 50°C, releasing carbon dioxide gas. Should be stored in a cool, dry place and far away from any source of heat. The bags should not be stacked more than 10 layers height. The storage place should be free of objectionable odours, as the product is extremely likely to pick up odours.