The testing methods for element sulfur, hydrogen sulfide, mercaptansulfur, bisulfide, corrosive sulfide, total active sulfur and single active sulfide were reviewed.
And diallyl tetrasulfide was synthesized by the reaction of sulfur monochloride with allyl mercaptan with a yield of 81.
以一氯化硫和烯丙硫醇为原料合成了二烯丙基四硫，产率为81。
3
The paper summarized the methods of determining the sulfur content in petroleum and its products, including total sulfur, elemental sulfur, mercaptan and other sulfide etc.