Difference between nitroguanidine and guanidine nitrate

1. Chemical formula: CH₄N₄O₂CH₆N₄O₂; nitroguanidine is [formula missing], guanidine nitrate is [formula missing].

2. Physical properties: Nitroguanidine is a white crystalline solid, slightly soluble in water; guanidine nitrate is a white granular solid, soluble in water and ethanol.

3. Preparation method: Nitroguanidine is prepared by dehydrating guanidine nitrate with concentrated sulfuric acid; guanidine nitrate is prepared by reacting urea and ammonium nitrate.

4. Main uses: Nitroguanidine is used as a raw material for explosives and organic synthesis; guanidine nitrate is used in the synthesis of sulfonamide drugs and the manufacture of explosives.