white, crystal(s) powder(s); hygroscopic; decomposes when heated to metaphosphate; preparation: reaction between phosphoric acid and magnesium hydroxide; used to fireproof wood and as a stabilizer for plastics [HAW93]
In medicine, MAGNESIUM BIS(DIHYDROGEN PHOSPHATE)TETRAHYDRATE is used to manufacture drugs for treating rheumatoid arthritis; in the plastics industry, it is used as a stabilizer for plastic products; and it is also used as a flame retardant for wood and other flame-retardant materials.