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Chemical Name：Nitroso sulfuric acid

CAS NO：7782-78-7

Molecular formula：HNO₅S

Molecular weight：127.07

Structural formula：

Specification：

Melting point：-10℃

Color：Transparent to milky yellow to green.

Purity：≥98%

Purpose：Mainly used to replace sodium nitrite in diazo reaction of disperse dye, so as to reduce cost and improve product quality.

Storage condition：Refrigerator +4℃.