Adopting secondary recrystallization purification process, the purity is as high as 99.0%, and the impurity content is strictly controlled within the analytical reagent standard range. Each batch of products is accompanied by a detailed quality inspection report, including various impurity indicators and purity test data. The packaging adopts high-density polyethylene bottles or cardboard drums with good sealing performance, effectively preventing moisture and contamination. It has excellent solubility and stability, and can be used to prepare buffer solutions with pH 4.0-6.0, adapting to various chemical analysis experiments. Compared with industrial-grade reagents, the repeatability and accuracy of experimental data are greatly improved, making it suitable for scientific research and teaching use.
Particle size: 0.42-1.0mm; Moisture content: 36.0-38.5%; Chloride content: ≤0.002%; Sulfate content: ≤0.003%; Iron content: ≤0.001%; Heavy metal content: ≤0.0005%; Packaging specification: 500g analytical reagent plastic bottle, 25kg cardboard drum; Storage conditions: cool and dry place, sealed storage; Shelf life: 36 months.
It is applicable to buffer solution preparation in chemical analysis experiments, reagents for organic synthesis reactions, pre-treatment reagents for food testing, standard sample preparation for environmental monitoring, university chemical teaching experiments and other scenarios. It can be used as a standard reagent for acid-base titration, pH adjustment and other experimental operations, and is one of the commonly used chemical reagents in daily laboratory work.
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