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主要文件

179922

Sigma-Aldrich

邻苯二甲酸氢钾

ACS reagent, acidimetric standard

别名:

KHP, 苯二甲酸氢钾, 邻苯二甲酸 单钾盐, 酞酸氢钾

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500 G
¥1,018.94
2.5 KG
¥3,275.29

¥1,018.94


预计发货时间2025年7月01日详情


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500 G
¥1,018.94
2.5 KG
¥3,275.29

About This Item

线性分子式:
HOOCC6H4COOK
CAS号:
分子量:
204.22
Beilstein:
3637128
EC 号:
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.21

¥1,018.94


预计发货时间2025年7月01日详情


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等级

ACS reagent

质量水平

方案

99.95-100.05% dry basis

表单

crystals

质量

acidimetric standard

杂质

≤0.002% S compounds
≤0.003% Cl compounds
≤0.005% insolubles

pH值(酸碱度)

4.00-4.02 (25.0 °C±0.2 °C, 0.05 M)

mp

295-300 °C (dec.) (lit.)

痕量阳离子

Fe: ≤5 ppm
Na: ≤0.005%
heavy metals: ≤5 ppm (by ICP)

官能团

carboxylic acid

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此商品
S9627S564013464
硫酸钠 BioXtra, ≥99.0%

S6547

硫酸钠

硫酸钠 ReagentPlus®, ≥99.0%

S9627

硫酸钠

硫酸钠 ≥99.0%, suitable for plant cell culture

S5640

硫酸钠

硫酸钠 puriss., meets analytical specification of Ph. Eur., BP, USP, anhydrous, 99.0-100.5% (calc. to the dried substance)

13464

硫酸钠

form

powder

form

powder

form

powder

form

crystalline

assay

≥99.0%

assay

≥99.0%

assay

≥99.0%

assay

99.0-100.5% (calc. to the dried substance)

solubility

H2O: 1 M, clear, colorless

solubility

-

solubility

water: soluble 1 g/10 mL

solubility

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

density

2.68 g/mL at 25 °C (lit.)

density

2.68 g/mL at 25 °C (lit.)

density

2.68 g/mL at 25 °C (lit.)

density

2.68 g/mL at 25 °C (lit.)

cation traces

Al: ≤0.0005%, Cu: ≤0.0005%, K: ≤0.005%, NH4+: ≤0.05%, Zn: ≤0.001%, Ca: ≤0.005%, Mg: ≤0.005%, Fe: ≤0.0005%, Pb: ≤0.001%

cation traces

-

cation traces

-

cation traces

As: ≤2 mg/kg, Ca: ≤50 mg/kg, Fe: ≤50 mg/kg, Mg: ≤50 mg/kg, Zn: ≤300 mg/kg

应用

邻苯二甲酸氢钾可用作酸量滴定的一级标准品[1],也可用于制备用于 pH 校准的邻苯二甲酸氢钾缓冲液。[2][3]

储存分类代码

13 - Non Combustible Solids

WGK

WGK 1

闪点(°F)

387.1 °F - Pensky-Martens closed cup

闪点(°C)

197.3 °C - Pensky-Martens closed cup

个人防护装备

Eyeshields, Gloves, type N95 (US)

  • 技术规格说明书

  • 历史批次信息供参考:

    分析证书(COA)

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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.
    Electrochimica Acta, 28(11), 1593-1598 (1983)
    2, 4, 6-Trinitrobenzoic acid as a primary standerd in acidimetry.
    Smith GF and Wilkins DH.
    Analytica Chimica Acta, 8, 209-216 (1953)
    J M Padró et al.
    Talanta, 107, 95-102 (2013-04-20)
    Dispersive ionic liquid-liquid microextraction combined with liquid chromatography and UV detection was used for the determination of two antichagasic drugs in human plasma: nifurtimox and benznidazole. The effects of experimental parameters on extraction efficiency-the type and volume of ionic liquid
    Maria Cristina Fossi et al.
    Marine pollution bulletin, 64(11), 2374-2379 (2012-09-12)
    Baleen whales are potentially exposed to micro-litter ingestion as a result of their filter-feeding activity. However, the impacts of microplastics on baleen whales are largely unknown. In this case study of the Mediterranean fin whale (Balaenoptera physalus), we explore the
    Juanjuan Feng et al.
    Journal of chromatography. A, 1268, 16-21 (2012-11-07)
    Because of the occurrence of ion exchange between high-ionic-strength solution and anions of polymeric ionic liquids (PILs), PILs based solid-phase microextraction (SPME) fibers were rarely used in direct immersion mode to high-salt-added samples. In this work, a novel double-confined PIL

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