[性    狀] 淺黃色或藍紫色液體，遇水分解成硫酸、硝酸和一氧化氮；溶于濃硫酸而不分解。

[用    途] 主要用于染料、醫(yī)藥在重氮化反應(yīng)中取代亞硝酸鈉，有效降低硫酸使用量，增加反應(yīng)的流動性，不產(chǎn)生無機鹽，從而可以降低成本，提高產(chǎn)品質(zhì)量，使染料成品色澤鮮艷、固色能力強，減少污水。

[Properties] Light yellow or blue purple liquid, water decomposition into sulfuric acid, nitric acid and nitric oxide; soluble in concentrated sulfuric acid without decomposition.

[Applicability]used for dye and medicine taking sub sodium nitrate in the diazotization reaction, effectively reduce the use amount of sulfuric acid, increased mobility of reaction, does not produce inorganic salts, which can reduce the cost, improve product quality, to make the dye product luster bright, color fixing ability, reduce sewage.