ISO 910:1977 工业用硫酸和发烟硫酸.总酸度的测定以及发烟硫酸中游离三氧化硫含量的计算.滴定法
标准编号:ISO 910:1977
中文名称:工业用硫酸和发烟硫酸.总酸度的测定以及发烟硫酸中游离三氧化硫含量的计算.滴定法
英文名称:Sulphuric acid and oleum for industrial use — Determination of total acidity, and calculation of free sulphur trioxide content of oleum — Titrimetric method
发布日期:1977-11
标准范围
考虑两种情况:硫酸含量等于或低于98%(m/m)和硫酸含量高于98%(m/m)。该原理基于在甲基红作为指示剂的情况下,用过氧化氢氧化试验部分,并用标准体积氢氧化钠溶液滴定总酸度。-取代ISO建议R 910-1968。
Two cases are considered: sulphuric acid contents equal to or lower than 98 % (m/m) and sulphuric acid contents higher than 98 % (m/m). The principle is based on oxidation of a test portion with hydrogen peroxide and titration of the total acidity with a standard volumetric sodium hydroxide solution, in the presence of methyl red as indicator. - Replaces ISO Recommendation R 910-1968.
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