We use of colorimetric phenolreagent and formaldehyde measurement devices for measuring formaldehyde, the accuracy of the measurement results can reach nominal 5% of the device.
采用酚试剂比色法并合理使用甲醛测量装置对甲醛含量进行了测定,测量结果的精度能够达到装置标称的5%。
3
Using 3, 5-dimethyl phenol as raw materials, sulfuryl chloride as chlorination reagent and carbon tetrachloride as solvent to synthesize chloroxylenol.