concentrated sulphuric acid

基本解释

The indigo dyed fibre or fabric was dissolved with concentrated sulphuric acid. The solution was analyzed spectrophometrically.
靛蓝染色纱线被浓硫酸溶解后，对得到的溶液进行分光光度分析。
White crystal or offwhite powder, undissolving in water or alcohol, dissolving in concentrated sulphuric acid or hydrochloric acid or ammonia or potassium iodide.
白色结晶或灰白色粉末，见光易分解变成棕黄色。不溶于水和乙醇。溶于浓硫酸和盐酸，亦溶于氨水、碘化钾。
The use of 98% H2SO4 for removal of water in nitric acid in the sulphuric acid process concentrated nitric acid production will produce large amount of dilute sulphuric acid, which has to be treated.
稀硫酸腐蚀性强，硫酸法—浓硝酸工艺采用98%H2SO4脱除硝酸中的水，产生了大量的稀硫酸须予以处理。

浓硫酸
The spectrophotometric method of vanillin-concentrated sulphuric acid to measure the content of teasponins was established.
采用香草醛-浓硫酸显色法对茶皂素含量的测定进行了研究。