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General Chemistry
Carbohydrazide (CHZ)
Formula:
CH6N4O
GOST/CAS:
497-18-7
Carbohydrazide (an ultra-high efficiency organic reducing agent and corrosion inhibitor) is a specialized chemical component acting as a key agent for oxygen scavenging and metal surface passivation in aqueous environments. The product is a white crystalline powder, highly soluble in water. Due to its outstanding ability to effectively prevent oxygen corrosion at elevated temperatures, carbohydrazide is indispensable in thermal power generation, industrial water treatment systems, petroleum refining, as well as in polymer production and organic synthesis.
Applications
Water Treatment & Thermal Power Generation: Used as a highly efficient oxygen scavenger (deaerator) for boiler feedwater in high, medium, and critical pressure steam boilers. It prevents pitting corrosion of equipment and pipelines.
Passivation of Metal Surfaces: Promotes the formation of a dense protective magnetite film on carbon steel and copper surfaces, significantly reducing corrosion rates and extending the lifespan of heat exchangers.
Chemical Synthesis & Pharmaceuticals: Serves as an intermediate raw material for the synthesis of pharmaceuticals, stabilizers, herbicides, plant growth regulators, as well as various hydrazine derivatives.
Polymer Industry: Utilized as a modifier, cross-linking agent, or color stabilizer in the production of plastics, rubbers, and elastic fibers, preventing thermal degradation of polymer materials during processing.
Key Advantages
High Oxygen Scavenging Efficiency: Reacts with dissolved oxygen at a 1:1 ratio, working effectively at both low and high temperatures (up to and above the boiling point of water).
Safety & Eco-Friendliness: Unlike highly toxic hydrazine, carbohydrazide does not carry over with steam, is safe to handle under standard precautions, and decomposes into completely harmless components: nitrogen, water, and carbon dioxide.
Passivation Effect: It does not just remove oxygen, but actively converts iron oxides on metal surfaces into a tight, protective magnetite layer, ensuring long-term system protection.
High Purity Level: An active ingredient content of ≥99.0% guarantees the absence of side impurities that could cause scaling or fouling of technological equipment.
Storage & Transportation
- Store in dry, cool, and well-ventilated warehouses in tightly sealed original packaging, away from heat sources, sparks, and open flames.
- Avoid joint storage with strong oxidizing agents, concentrated acids, and alkalis to prevent violent chemical reactions.
- Protect from direct sunlight and atmospheric moisture, as the powder possesses hygroscopic properties.
- Transportation is permitted by all types of covered transport in compliance with freight regulations. Shelf life is 1–2 years from the date of manufacture (depending on the manufacturer's specification).
Frequently bought together
Technical Specifications
Appearance
White crystalline powder / fine granules
Molecular Weight
90.08 g/mol
Assay (Main Substance)
≥ 99.0%
Free Hydrazine Content
≤ 0.1%
Melting Point
152 – 154 °C
pH (1% Aqueous Solution)
6.5 – 8.5
Moisture Content
≤ 0.2%
Chloride Content
≤ 0.001%
Supply info
- Moisture-proof woven polypropylene or multi-wall paper bags with a polyethylene inner liner of 25 kg.
- Flexible Intermediate Bulk Containers (Big-bags / FIBC) of 500 kg or 1000 kg for large industrial enterprises.
- Custom packaging in individual containers is available upon agreement with the customer.