精華區beta NTUScout 關於我們 聯絡資訊
好! 這個再試試 Calcium Hydroxide Ca(OH)2 Crystals or soft, odorless, granules or powder. Slightly bitter, alkaline taste. Readily absorbs CO2 from air forming CaCO3. pH of aq soln satd at 25 degrees C: 12.4. Keep well closed. THERAP CAT: Astringent.