Advantages
This product is a new deoxidant made by condensation reaction of hydroxylamine and carbonyl compound, which is applied widely to boiler water as deoxidant and passivant and is commonly used medicament for wet method protection of boiler. It can also be used as the raw material for organic synthesis, medicine, pesticide, coloring agent and organic silicone coupling agent, as well as analytical reagent for identifying nickel and cobalt, etc.
Product Specifications
1. Appearance: White crystal
2. Main Performance Indexes:
|
|
优极品 |
合格品 |
|
Content % ≥ |
99 |
97 |
|
Residue on Ignition % ≤ |
0.03 |
0.03 |
|
Cl- % ≤ |
0.001 |
AgNO3 Inspection(None) |
|
Moisture % |
Surplus |
Surplus |
Reference Indexes for Operation
1. Materials Input: Superior product is preferable so as to prevent the damage from impurities.
2. Control of deoxidant residue in water supply: 10-40μg/L.
3. Control of pH for thermodynamic system: 9.0-9.3 (to avoid affecting water supply Ph
caused by low content of ammonification).
4. Concentration of Purified Protectant: 800-900mg/L
5. pH Value of Purified Liquid (ammonia adjustment): 9.50-11.0
6. Temperature of Passivation Solution (normal pressure cleaning system): 85-90℃
7. Passivation Duration: 14-18h
8. Concentration of Protectant: 350-500mg/L
9. pH Value of Protectant (ammonia adjustment): ≥10.5
Applications
1. Chemical deoxidant for water supply.
Deoxygenation effect is same as that of hydrazine, but the toxicity is 1/19 of that of hydrazine.
2. Protectant for thermal equipment shutdown (standby).
Due to the excellent reductibility the product has, its aqueous solution can provide the surface of steel with good magnetic oxide film, which can defer the corrosion of thermal equipment when it's shutdown (standby).
3. Inactivation
This product can substitute for toxic reagent-sodium nitrite and hydrazine to be used as the passivant for thermal equipment after acid cleaning. The film is of high quality and there is no pollution discharge.
