推薦產品
等級
ACS reagent
agency
suitable for EPA 300
suitable for SM 5210
化驗
≥99.0%
形狀
powder or crystals
技術
tissue culture: suitable
雜質
≤0.01% Insoluble matter
損耗
≤0.2% loss on drying, 105°C
pH值
4.1-4.5 (25 °C, 5%)
pKa (25 °C)
(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
bp
>450 °C
mp
252.6 °C (lit.)
密度
2.338 g/mL at 25 °C (lit.)
負離子痕跡
chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.003%
正離子痕跡
Fe: ≤0.002%
Na: ≤0.005%
heavy metals: ≤0.001% (by ICP)
SMILES 字串
[K+].OP(O)([O-])=O
InChI
1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
InChI 密鑰
GNSKLFRGEWLPPA-UHFFFAOYSA-M
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相關類別
一般說明
磷酸二氢钾(正磷酸一钾)是水溶无机盐。它形成的标准焓是-376.1kcalmol-1。它是合成偏磷酸钾的起始物质。
應用
磷酸二氢钾用于制备磷酸缓冲液和磷酸盐缓冲液(PBS)。它还可以用来制备PEG1000(聚乙二醇)/磷酸钾水二相体系(ATPS)。
法律資訊
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
儲存類別代碼
13 - Non Combustible Solids
水污染物質分類(WGK)
WGK 1
閃點(°F)
Not applicable
閃點(°C)
Not applicable
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