AMMONIUM NITRATE, a salt of ammonia and nitric acid, is a colourless, crystalline substance melting at 169 C. It is highly soluble in water and soluble in alcohol and liquid ammonia. Heating may cause violent combustion or explosion.
The British thermal unit (BTU or Btu) is a traditional unit of work equal to about 1055 joules. It is the amount of work needed to raise the temperature of one pound of water by one degree Fahrenheit (Physical analogue: one four-inch wooden kitchen match consumed completely generates approximately 1 BTU).In science, the joule, the SI unit of energy, has largely replaced the BTU.efinitions of the BTU based on different water temperatures can therefore vary by up to 0.5%. A BTU can be approximated as the heat produced by burning a single wooden kitchen match or as the amount of energy it takes to lift a one-pound weight 778 feet (237 m).
Btu stands for British Thermal Unit, which is a unit of energy consumed by or delivered to a building. A Btu is defined as the amount of energy required to increase the temperature of 1 pound of water by 1 degree Fahrenheit, at normal atmospheric pressure. Energy consumption is expressed in BTU to allow for consumption comparisons among fuels that are measured in different units. BTU Conversion Factors: