Sodium nitrite
CAS No.:7632-00-0 Molecular Formula: NaNO2 Purity:90%-99%
25mts Per 20FCL Density:2.17g/cm3 HS Code:31025000
Appearance:White Crystal Powder, White Crystal UN NO.:1500
Property: White or a little buff fine crystal. The relative molecular weight is 69.0 and density is 2.168. It's no smell and a little saline taste, easy to be deliquescence and to dissolve in water. The melting point is 271ºCand decomposition temperature is 320ºC. It has the strong oxidizing property, as well as reducing property. It can slowly oxidize into sodium nitrite in the air, and will become diamino compound composed with ammonia under low temperature.
Application: It is mainly used as the raw material of productions of nitro compound and azo dyes etc. It is also used as mordant and bleacher for fabric dyeing, as well as metal heat treatment agent, early-strength admixture and antifreeze of cement.
Molecular Formula: NaNO2
Property: White or a little buff fine crystal. The relative molecular weight is 69.0 and density is 2.168. It's no smell and a
little saline taste, easy to be deliquescence and to dissolve in water. The melting point is 271ºCand decomposition temperature is 320ºC. It has the strong oxidizing property, as well as reducing property. It can slowly oxidize into sodium nitrite in
the air, and will become diamino compound composed with ammonia under low temperature.
Application: It is mainly used as the raw material of productions of nitro compound and azo dyes etc. It is also used as
mordant and bleacher for fabric dyeing, as well as metal heat treatment agent,
early-strength admixture and antifreeze of cement.
Specification:
Item |
Quality Index |
High-Class |
First-Class |
Qualified-Class |
Purity |
99.0% min |
98.5% min |
98.0% min |
Moisture |
1.4% max |
2.0% max |
2.5% max |
Chlorides (As NaCL) |
0.10% max |
0.15% max |
---- |
Sodium nitrate |
0.8% max |
1.0% max |
1.5% max |
Water insolubles |
0.05% max |
0.06% max |
0.10% max |
Notice:
(1)This product shall be stored in the place where keep ventilation and dry against rain, heated and insolation under sunlight.
(2)This product shall not be delivered or stored together with strong reducing agent, inflammable and detonatable
substances, foods, feed, and additives.
(3)This product is venomousness. Please keep it safely. Don't eat it mistakenly.
1. Mordant: Sodium nitrite is widely used as a mordant in the textile industry. Its application scenario involves the dyeing process, where it acts as a fixing agent for dyes on fabrics. By forming a complex with the dye molecules, sodium nitrite enhances color fastness and helps in achieving vibrant and long-lasting colors.
2. Bleaching Agent: In various industrial processes, sodium nitrite serves as an effective bleaching agent. It finds application in the paper and pulp industry, where it aids in the bleaching of wood pulp, resulting in the production of high-quality, bright white paper products.
3. Heat Treatment Agent: Sodium nitrite is utilized as a heat treatment agent in metalworking industries. Its application scenario involves the process of nitrocarburizing, where it enhances the surface hardness and corrosion resistance of metal components. By forming a protective layer, sodium nitrite ensures improved durability and longevity of the treated metal parts.
4. Inhibitor: The ability of sodium nitrite to inhibit corrosion makes it a valuable component in various applications. One such scenario is in the oil and gas industry, where it is added to drilling fluids to prevent corrosion of metal pipes and equipment. Additionally, sodium nitrite acts as an inhibitor in cooling systems, preventing the formation of rust and scale deposits.
5. Reagent: Sodium nitrite serves as an essential reagent in numerous chemical reactions. One application scenario involves its use in the synthesis of organic compounds, such as pharmaceuticals and dyes. It acts as a precursor for the preparation of various nitrogen-containing compounds, contributing to the advancement of chemical research and development.
6. Vasodilator: Sodium nitrite exhibits vasodilatory properties, making it suitable for medical applications. In specific scenarios, it is used as a vasodilator to widen blood vessels, aiding in the treatment of certain cardiovascular conditions. By improving blood flow, sodium nitrite helps alleviate symptoms and promote overall cardiovascular health.
7. Material of Chemicals: Sodium nitrite serves as a fundamental material in the production of various chemicals. Its application scenario includes the manufacturing of diazo compounds, which are crucial intermediates in the synthesis of pharmaceuticals, dyes, and other specialty chemicals. By providing the necessary building blocks, sodium nitrite contributes to the production of diverse chemical products.
In summary, sodium nitrite finds versatile application scenarios as a mordant, bleaching agent, heat treatment agent, inhibitor, reagent, vasodilator, and material of chemicals. Its multifunctional properties enable its usage across industries, ranging from textiles and metalworking to pharmaceuticals and chemical synthesis.
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