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HRID275238

反应详情

EQUATION

反应方程式

HRID 275238 的结构方程式

REACTANTS

反应物

2
结构：O=S(=O)(O)O
HCID1118

Sulfuric acid

H2O4S

结构：[Na+].[Na+].[O]=[Cr](=[O])([O-])[O-]
HCID24488

Sodium chromate

CrNa2O4

PRODUCTS

生成物

2
结构：O=S(=O)([O-])[O-].[Na+].[Na+]
HCID24436

Sodium sulfate anhydrous

Na2O4S

结构：[Na+].[Na+].[O]=[Cr](=[O])([O-])[O][Cr](=[O])(=[O])[O-]
HCID25408

Sodium dichromate

Cr2Na2O7

PROCEDURE

实验过程

Disclosed is an improvement on a process in which sodium chromate is reacted with sulfuric acid to produce sodium bichromate and sodium sulfate, and the sodium bichromate is reacted with sulfuric acid to produce chromic acid and sodium bisulfate. In the improvement, the sodium sulfate and sodium bisulfate are reacted with hydrogen chloride to produce sulfuric acid, which is recycled, and sodium chloride.