例如碳酸钠和邻苯二酸氢钾，分别用来标定酸和碱溶液。
Examples are sodium carbonate and potassium acid phthalate which are used to standardize acid and base solutions.
本品为安全品，无毒害，非易燃易爆品。成分为碳酸钾和碳酸钠。
This product are security products, non toxic, non flammable and explosive materials. The components are potassium carbonate and sodium carbonate.
本品为安全品，无毒害，非易燃易爆品。成分为碳酸钾和碳酸钠。
This product are security products, non toxic, non flammable and explosive materials. The components are potassium carbonate and sodium carbonate.
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