Introduction to the properties and uses of oleum

[nature]Colorless or brown oily thick fuming liquid. Dissolved by sulfur dioxide in 100%Made of sulfuric acid. Generally contains trioxidesulfur5%-20%， up to80%,its density, melting point, The boiling point and so on all vary with the content of sulfur trioxidecontentDifferent. The commonly used ones are20% smokeSulfuric acid(ie104.5% H2SO4.relative density1.9 melting point 11℃,Boiling point 166.6°C. Also40%,60% and 66% and other varieties. inH2 SO4SO3for1: When it is about 1, it will condense into pyrosulfuric acid crystals（H2S2O7）

Oleum when heated or decompressed,EscapingThreeSulfur oxideWhen encounteringmoist air forms smog,hence the name. Strong water absorption, when mixed with water,threeSulfur oxide combines with water to become sulfuric acid. Bei has strong corrosion，Yes StrongOxygenSulphur,sulfating agent, sulfating agent. For human musclesSkinStrong erosion, burn effect.

[Purpose]Mainly used as a sulfonating agent, used in conjunction with nitric acid, Can be used as a nitrifying dehydrating agent. Widely used in the manufacture of nitrocellulose, dyes, explosives, washingDetergent. Also used in oil refining, petroleum refining andplasticMaterials and other industriesIndustry.

［ BriefMethod]See”sulfuric acid”

［安Fulland protection]Smokesulfuric acidIts water absorption, oxidation and corrosion are stronger than concentrated sulfuric acid, and it is a first-class inorganic acid corrosion product. Danger code number: 91006. Packed in an acid-resistant ceramic jar,Every Net weight45kg, For altar mouth Sealed with acid-resistant material. Attention to storage, transportation and first aidthingsitem with Sulfuric acidThe same.

“>Detergent.Also used in oil refining, petroleum refining andplasticMaterials, etc.Industry.

［ BriefMethod]See”sulfuric acid”

［安Fulland protection]Smokesulfuric acidIts water absorption, oxidation and corrosion are stronger than concentrated sulfuric acid, and it is a first-class inorganic acid corrosion product. Danger code number: 91006. Packed in an acid-resistant ceramic jar,Every Net weight45kg, For altar mouth Sealed with acid-resistant material. Attention to storage, transportation and first aidthingsitem with Sulfuric acidThe same.