Carbohydrazide
O2 scavenger • boiler (hydrazine alt.) • oxidants
Use note: feed to deaerator/storage or economizer inlet; maintain
slight excess scavenger at feedwater outlet. Reaction rate
increases with temperature and metals catalysts. Avoid mixing neat
with strong oxidizers—add to separate feed point.
Purity (tech powder)
≥ 98%
Typical dose
~1.2–1.7 mg/L per mg/L O₂
Solution range
20–50% w/w
Best for
low/med pressure boilers
Values are indicative; optimize based on dissolved oxygen (DO),
temperature and residence time. Specs below are representative;
shipped goods conform to COA.
| Parameter | Typical | Spec |
|---|---|---|
| Assay (HPLC) | ≥ 99.0% | ≥ 98.0% |
| Moisture (KF) | ≤ 0.5% | ≤ 1.0% |
| Melting point | 150–154 °C | ≥ 150 °C |
| Appearance | white crystalline powder | conforms |
| Solubility | soluble in water | — |
| Parameter | Typical | Spec |
|---|---|---|
| Active (carbohydrazide) | 20% w/w | 20% ± 1% |
| pH (25 °C) | 8.5–10.5 | 8.0–11.0 |
| Specific gravity (20 °C) | ≈ 1.05 | ≥ 1.03 |
| Appearance | clear to slightly hazy liquid | conforms |
| Stabilizers | amine/alkali (nitrite‑free) | — |
| Parameter | Typical | Spec |
|---|---|---|
| Active (carbohydrazide) | 50% w/w | 50% ± 2% |
| pH (25 °C) | 8.5–10.5 | 8.0–11.0 |
| Specific gravity (20 °C) | ≈ 1.18 | ≥ 1.16 |
| Appearance | clear to slightly yellow liquid | conforms |
| Viscosity (25 °C) | moderate | — |
| Parameter | Typical | Spec |
|---|---|---|
| Carbohydrazide | 20–30% w/w | per order |
| Catalyst | trace metal activator | — |
| pH (25 °C) | 9.0–11.0 | 8.5–11.5 |
| Appearance | clear liquid | conforms |
| Notes | enhanced low‑temp DO removal | — |
| Applications | Packaging | Storage & Handling |
|---|---|---|
|
• Oxygen scavenger/passivator for boiler/feedwater and
condensate systems.
• Hydrazine alternative; decomposes to gaseous products leaving minimal dissolved solids. • Assists in forming magnetite (Fe₃O₄) protective film on steel. |
• Solids: 25 kg bags • 500–1000 kg big bags.
• Solutions: 200 L drums • 1000 L IBCs • bulk on request. |
• Store cool/dry, sealed; protect from oxidizers and
acids. Use dedicated feed tanks/pumps.
• Observe local regulations for boiler additives (food/steam contact approvals vary by market). |
Regulatory: Industrial boiler water treatment chemical. Buyer is
responsible for verifying legal use and discharge compliance in
destination market.