<nobr id="tv4oc"><address id="tv4oc"><big id="tv4oc"></big></address></nobr>
    1. <bdo id="tv4oc"><address id="tv4oc"></address></bdo>
      Serving the life of science and technology civilization.
      Serving the life of science and technology civilization.
      Serving the life of science and technology civilization.
      Serving the life of science and technology civilization.
      理念识别系统
      Serving the life of science and technology civilization.
      Serving the life of science and technology civilization.
      Serving the life of science and technology civilization.

      碳酸钠(Na₂CO₃)

      來源: 本站 作者: 管理员 瀏覽324 發布時間 2022/7/28 10:55:27

      碳酸鈉常溫下為白色粉末或顆粒。無氣味。是 強堿弱酸鹽 。有吸水性。露置空氣中逐漸吸收 1mol/L水分(約15%)。遇酸分解并泡騰。溶于水(室溫時3.5份,35℃時2.2份)和甘油,微溶于無水乙醇。水溶液呈強堿性,pH11.6。相對密度(25℃)2.53。熔點851℃。半數致死量(30日)(小鼠,腹腔)116.6mg/kg。有刺激性??捎蓺溲趸c和碳酸發生化學反應結合而成。溶液呈堿性。碳酸鈉在2132K分解。

      青海汇信资产管理有限责任公司
      24小時服務熱線
      0979-8448021
      微信公眾號
      男女啪啪进出阳道猛进网站_男人强撕开奶罩揉捏我奶头视频_男人大JI巴放进女人身体里_福利