concentrated sulphuric acid

基本解釋

The indigo dyed fibre or fabric was dissolved with concentrated sulphuric acid. The solution was analyzed spectrophometrically.
靛藍(lán)染色紗線被濃硫酸溶解后，對得到的溶液進(jìn)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.
白色結(jié)晶或灰白色粉末，見光易分解變成棕黃色。不溶于水和乙醇。溶于濃硫酸和鹽酸，亦溶于氨水、碘化鉀。
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.
稀硫酸腐蝕性強(qiáng)，硫酸法—濃硝酸工藝采用98%H2SO4脫除硝酸中的水，產(chǎn)生了大量的稀硫酸須予以處理。

濃硫酸
The spectrophotometric method of vanillin-concentrated sulphuric acid to measure the content of teasponins was established.
采用香草醛-濃硫酸顯色法對茶皂素含量的測定進(jìn)行了研究。