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Carbohydrazide

CAS Number
497-18-7
EC Number
207-837-2
Chemical Formula
CH6N4O
Molecular Weight
90.09 g/mol

Description

Carbohydrazide (CAS 497-18-7 ), also known as N,N'-diaminourea, is an oxygen scavenger and corrosion inhibitor used across industrial water treatment and energy systems. It removes dissolved oxygen from process water and boiler systems, protecting metal surfaces from oxidative corrosion. In boiler feedwater treatment, this compound replaces hydrazine as a safer oxygen scavenger, reacting with dissolved oxygen to prevent pitting and corrosion in steam generation systems. This application is critical for maintaining the integrity of high-pressure equipment. Refineries and oil and gas facilities use it to protect pipelines and heat exchangers operating under high-temperature conditions. Its ability to passivate metal surfaces makes it an essential component in heavy industrial maintenance and protection protocols. In polymer chemistry, it functions as a cross-linking and curing agent for polyurethane and epoxy systems. This application improves the mechanical performance and chemical resistance of the final material, ensuring durability in demanding environments. It also serves as a catalyst precursor in the synthesis of specialty chemicals and pharmaceutical intermediates. Its versatile chemical structure allows for precise reactions in complex organic synthesis and specialized manufacturing processes. The product is supplied as a white crystalline powder to meet various industrial requirements. Standard commercial grades include technical and high-purity specifications, with purity levels typically ranging from 98% to 99%+. Quality control ensures the material meets rigorous industrial benchmarks for consistency and performance. Packaging is available in bags and drums suited to industrial procurement volumes, ensuring safe transport and storage for large-scale operations. Contact us for supply of Carbohydrazide Request Quote

Other Names (Synonyms)

N,N'-diaminourea | N-aminohydrazinecarboxamide | hydrazide hydrazinecarboxylic acid | carbonylbis-hydrazine | carbonic dihydrazide | cabazide | 4-aminosemicarbazide | 1,3-diaminourea

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point154 °C
Boiling Point167.26°C (rough estimate)
Density1.3338 g/cm³
Appearancewhite powder
ColorWhite
FormCrystalline Powder
Water SolubilitySoluble in water.
Vapor Pressure0Pa at 25℃
Refractive Index1.4164 (estimate)
Log P-2.94 at 21.6℃

Safety & Handling

Warning
GHS07· IrritantGHS09· Environment

Hazard Statements

H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H335May cause respiratory irritation
H411Toxic to aquatic life with long lasting effects

Precautionary Statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P391Collect spillage.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29280000
UN Number3077
Storage Class11 - Combustible Solids
WGK (Germany)3