Strontium principal characteristics

The principal use of strontium nitrate is in the manufacture of pyrotechnics (qv) as it imparts a characteristic, hrilliant crimson color to a flame. Railroad fusees and distress or rescue signaling devices are the main uses for strontium nitrate. It is also used to make red tracer bullets for the military. 

A principal component analysis was applied to the data of the chemical components and the amount of precipitation at eleven sampling stations to know the characteristics of stations. The eigen vectors for the first and second components are summarized in Tables 3 and 4. The first components were characterized by sodium, magnesium, strontium, chloride, and sulfate ions which means that the major chemical depositions are similar throughout Japan, even though the seasonal variation differed for the stations on the Japan Sea side and the Pacific side. 

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