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等級
puriss. p.a.
品質等級
化驗
≥99.5% (T)
形狀
solid
pH值
4
mp
295-300 °C (dec.) (lit.)
負離子痕跡
chloride (Cl-): ≤20 mg/kg
sulfate (SO42-): ≤50 mg/kg
正離子痕跡
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg
官能基
carboxylic acid
SMILES 字串
[K+].OC(=O)c1ccccc1C([O-])=O
InChI
1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1
InChI 密鑰
IWZKICVEHNUQTL-UHFFFAOYSA-M
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一般說明
邻苯二甲酸氢钾 (KHP) 是邻苯二甲酸的单钾盐。根据 ISO/IEC 17025 和 ISO Guide 34 认证，拟定将其作为有证标准物质 (CRM)。已报道了其在不同溶剂中的光谱移动、多重性、溶解性和弛豫时间。
應用
邻苯二甲酸氢钾可用作酸量滴定的一级标准品，也可用于制备用于 pH 校准的邻苯二甲酸氢钾缓冲液。
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 1
閃點（°F）
387.1 °F - Pensky-Martens closed cup
閃點（°C）
197.3 °C - Pensky-Martens closed cup
個人防護裝備
Eyeshields, Gloves, type N95 (US)
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2, 4, 6-Trinitrobenzoic acid as a primary standerd in acidimetry.
Smith GF and Wilkins DH.
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Determination of standard pH values for potassium hydrogen phthalate reference buffer solutions in 10, 20, 50, 64 and 84.2 wt per cent methanol/water mixed solvents at temperatures from 283.15 to 313.15 K.
Mussini T, et al.
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