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本產(chǎn)品僅用于科研,不用于臨床
中文名稱: 偏重亞硫酸鉀
其他中文名稱: 焦亞硫酸鉀;三縮二原硫酸鉀;偏硫代硫酸鉀;二亞硫酸鉀;偏亞硫酸氫鉀
焦亞硫酸鉀英文名稱: Potassium metabisulfite
其他英文名稱: Potassium pyrosulfite
產(chǎn)品規(guī)格: AR,95%
包裝:500克
CAS號:16731-55-8
K2S2O5=222.33
級別:AR
含量:≥95.0%
水不溶物:≤0.005%
氯化物:≤0.005%
澄清度試驗:≤4號
重金屬:≤0.001%
砷:≤0.0001%
鐵:≤0.0005%
性狀:結(jié)晶或結(jié)晶性粉末。有二氧化硫氣味。對濕敏感。有酸性反應(yīng)。與酸接觸有二氧化硫逸出。在空氣中逐漸氧化成硫酸鹽,在濕空氣中氧化更快。如研磨成粉灼熱時能燃燒。易溶于水,不溶于乙醇。190℃時分解。相對密度2.34。有刺激性。
用途:生化研究。還原劑。顯影劑。細(xì)菌抑制劑??寡鮿?。制備亞硫酸。
保存:RT
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