CAS No. 497-18-7
EC No. 207-837-2
Synonyms 1,3-Diaminourea; Carbonic dihydrazide; 1,3-bis(azanyl)urea; Carbazic acid; Carbonic dihydrazide; hydrazide Carbazide; Semicarbazide, 4-amino-Urea


Carbohydrazide, also called Carbodihydrazide, is a high performance oxygen scavenger which can be used in all types of boilers. Carbohydrazide is a white, water-soluble solid that decomposes upon melting point around 153°C.

Carbohydrazide can be used as oxygen scrubber as direct replacement for Hydrazine in any boiler without the associated safety hazards and handling precautions. The product is based on volatile chemistry and so leaves no dissolved solids and minimal ammonia to the boiler system. It does provide outstanding protection from oxygen corrosion together with excellent feed water and boiler system passivation.Carbohydrazide reacts directly with oxygen. It helps prevent oxygen damage and continues to passivate metal surfaces during wet lay-up. Carbohydrazide can also be used as a curing agent for epoxide-type resins.

Shelf Life

Under proper storage conditions, the shelf life is 18 months

Health & Safety

Detailed information on the product described can be found in our relevant Health and Safety Information (Material Safety Data Sheet).