甲酸85%
甲酸85产品质量指标
分析项目 Analysis items | 甲酸 85% Formic acid 85% | ||
指标 Specification | |||
优等品 Super Grade | 一等品 First Grade | 合格品 Normal Grade | |
外观 Appearance | 透明液体无悬浮物和机械杂质 Clear and free of suspended matter | ||
色度/Hazen(铂-钴号) Colour(Pt-Co) | ≤10 | ≤20 | ≤30 |
甲酸，W/% Formic acid purity | ≥85% | ||
稀释试验 (样品+水=1+3) Dilution Test (Acid: Water=1:3) | 不浑浊 Clear | 通过实验 Pass | 通过实验 |
氯化物（以CL计),W/% Chloride (Cl-) max | ≤0.002 | ≤0.004 | ≤0.006 |
硫酸盐（以SO4计)，W/% Sulfate (SO42-) max | ≤0.001 | ≤0.002 | ≤0.020 |
铁的质量分数(以铁计), W/% Iron % | ≤0.0001 | ≤0.0004 | ≤0.0006 |
蒸发残渣的质量分数, W% Evaporation Residue (max) | ≤0.006 | ≤0.020 | ≤0.060 |