Carbohydrazide Molecular Formula: CH6N4O CAS NO. :497-18-7 EINECS:207-837-2 UN:3077 Main application: Widely used in the production ofherbicides, plant growth regulators, dyes, etc. It can be used as an oxygen scavenger for boiler water and as a passivator for metal surfaces to reduce the corrosion rate of metals. Physicochemical properties: Appearance: White crystal powder Purity: 99% Refractive index: 1.537 Stability: Stable, but may explode if heated. Incompatible with strong acids, strong oxidizing agents. Vapor pressure: 0.0162 mm Hg ( 25 °C) Storage condition: The warehouse is ventilated at low temperature and stored separately from oxidants and acids. Melting point: 150-153 °C(lit.) Density: 1.02