also: りんさんアンモニウム
ammonium phosphate
Inorganic compound used as a fertilizer and in fire retardants. Technical term.
Ammonium phosphate is widely used as a fertilizer.
Standard modern spelling using katakana for リン and アンモニウム.
Older spelling with the kanji 燐 for リン; rarely used today.
From English 'ammonium phosphate', with リン (phosphorus) and アンモニウム (ammonium).