另外还生产食品添加剂柠檬酸钠、檬酸钾。

It also produces food additive such as sodium citrate, potassium citrate.

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使用的防腐剂是柠檬酸，目的是为了降低PH值和山梨酸钾，以便防止霉变。另一种是苯甲酸钠，它是一种杀菌剂。

The preservatives used are Citric Acid to reduce the PH level, Potassium Sorbate to stop mould and Sodium Benzoate as an antimicrobial agent.

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实验测得随着丙烯酸钠单体配比从0增加到33%，能够沉淀聚合丙烯酰胺的临界柠檬酸钾浓度从32.10%提高到61.90%。

It is mensurated that the critical salt concentration of potassium citrate is from 32.10% to 61.90% as monomer ratio increase from 0 to 33%.

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And they wanted to use a soluble salt of citric acid, so they could have used sodium, they could have used potassium.

而且他们想用一种柠檬酸的可溶性盐，他们本可以用钠，也可以用钾。

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