How should I store and use homophthalic dianhyd
Published on:
2021-11-09
Homophthalic dianhydride is an organic compound with the chemical name of 1,2,4,5-benzenetetracarboxylic dianhydride, abbreviated as PMDA, which is commonly used as a raw material for the manufacture of polymer materials and other chemical products. In storage and use, some important issues need to be noted. 首先，均苯四甲酸二酐的储存必须避免受潮。这种化合物会吸收空气中的水分，特别是在高湿度环境下，因此保管它应该在干燥的条件下。可以使用干燥剂或真空密封袋来保存，以减少潮湿对化合物的影响。此外，在储存时也不能与水或潮湿的前体物（如苯）混在一起。 其次，均苯四甲酸二酐的储存应该在避光的情况下进行。这种化合物不稳定于紫外线和日光下，因此必须保持在黑暗中。Z好选择不透明的容器将其储存。
Homophthalic dianhydride is an organic compound with the chemical name of 1,2,4,5-benzenetetracarboxylic dianhydride, abbreviated as PMDA, which is commonly used as a raw material for the manufacture of polymer materials and other chemical products. In storage and use, some important issues need to be noted.
First, storage of homophthalic dianhydride must be protected from moisture. This compound absorbs moisture from the air, especially in high humidity environments, so storing it should be in dry conditions. Desiccants or vacuum sealed bags can be used for storage to reduce the effect of moisture on the compound. Also, it should not be mixed with water or moist precursors (e.g. benzene) when stored.
Second, storage of homophthalic dianhydride should be done under light-proof conditions. This compound is not stable to UV light and sunlight, so it must be kept in the dark. z It is better to choose opaque containers to store it in.
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