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關於phenolphthalein的百科

phenolphthalein造句怎麼寫
  • phenolphthalein造句怎麼寫

  • ShanxiLiuqingPharmaceuticalCo.,LtdistheLargestphenolphthaleinmanufacturingfactoryinChina.Produce1000tonsofphenolphthalein,yellowphenolphthaleinis1000tonsperyear.Acidcalibrationpotassiumhydroxide,tophenolphthaleinasindicator.Objective:Tosetupamethodfo...
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Phenolphthalein是常用*鹼指示劑,其結構如圖所示。有關該有機物説法正確的是A.分子式為C20H1...