Customization: | Available |
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CAS No.: | 7632-00-0 |
Formula: | Nano2 |
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Raw Material Medicine CAS 7632-00-0 Industrial Sodium Nitrite/Nano2 with Competitve Price
ITEM |
Result |
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Best quality |
First quality |
Qualified quality |
result |
|
Content of sodium nitrite (calculated by dry base) % |
≥99 |
≥98.5 |
≥98 |
98.7 |
Content of sodium nitrate (calculated by dry base) % |
≤0.8 |
≤1.0 |
≤1.9 |
0.9 |
Content of chloride(NaCl) (calculated by dry base) % |
≤0.10 |
≤0.17 |
- |
0.06 |
Content of insolubles in water(calculated by dry base) % |
≤0.05 |
≤0.06 |
≤0.10 |
0.017 |
Content of carbonate (calculated by dry base) % |
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Moisture % |
≤1.4 |
≤2.0 |
≤2.5 |
1.1 |
Content of iron (Fe) % |
≤0.005 |
- |
- |
0.001 |
Apperance of product |
White fine crystal with slightly yellowish |
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Package and Trade mark |
By woven plastic bag outer , and white plastic bag inner |
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Result |
FIRST QUALITY |
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Remark |
NaN02 is an oxidizing corrosion inhibitor suitable for water treatment with low or ultra-low hardness. This product is toxic, so it is mainly used for closed circulating cooling water system, is a dangerous corrosion inhibitor, when the use concentration is insufficient, not only no corrosion inhibition, but accelerate corrosion, the use concentration is usually 300 ~ 500mg/L. The best pH range of water quality is 8-10, so it is often used together with Na2C03 of 300 ~ /L. When the pH of water quality is <6, it decomposes and cannot inhibit corrosion. Often combined with sodium molybdate, on the one hand to play a synergistic effect, on the other hand to reduce the amount of both. It is only suitable for black metal rust prevention, and is ineffective for non-ferrous metals such as copper, and even has corrosion effect.
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