Nitroguanidine is an organic compound with the chemical formula CH4N4O2. It is a white crystalline powder that is soluble in hot water, insoluble in cold water, slightly soluble in ethanol, insoluble in ether, and easily soluble in alkaline solutions. It is commonly used as an explosive and organic synthesis raw material.

Physical and chemical properties:

Melting point: 232 ℃ (decomposition)

Flash point: 149.3 ℃

Density: 1.71g/cm3

Refractive index: 1.685

Appearance: White crystalline powder

Solubility: soluble in hot water, insoluble in cold water, slightly soluble in ethanol, insoluble in ether, easily soluble in alkaline solution