G2222580计算溶液所需的质量、体积或浓度。
磷酸三钾 水合物
有货
概述
Potassium phosphate tribasic is a reagent with a very high buffering capacity. Widely used in molecular biology, biochemistry, and chromatography. Potassium phosphate occurs in several forms: monobasic (KH2PO4), dibasic (K2HPO4), and tribasic (K3PO4). Neutral potassium phosphate buffer solutions may be prepared with a mixture of the monobasic and dibasic forms to varying degrees, depending on the desired pH. Potassium Phosphate buffers are very useful in numerous applications, but with the following limitations; precipitation of Ca2+ and Mg2+, inhibition of restriction enzyme activity, and interference in DNA ligation or bacterial transformation protocols. Has been used to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes; it was found that potassium phosphate buffers offered improved pH stability as opposed to sodium phosphate buffers. Potassium Phosphate has also been used for the extraction of keratohyalin protein from bovine tissue. 很好的缓冲溶剂，广泛用于生化试验。
Potassium phosphate tribasic is a reagent with a very high buffering capacity. Widely used in molecular biology, biochemistry, and chromatography. Potassium phosphate occurs in several forms: monobasic (KH2PO4), dibasic (K2HPO4), and tribasic (K3PO4). Neutral potassium phosphate buffer solutions may be prepared with a mixture of the monobasic and dibasic forms to varying degrees, depending on the desired pH. Potassium Phosphate buffers are very useful in numerous applications, but with the following limitations; precipitation of Ca2+ and Mg2+, inhibition of restriction enzyme activity, and interference in DNA ligation or bacterial transformation protocols. Has been used to study the effects of freezing and thawing on the stability of proteins sensitive to conformational changes; it was found that potassium phosphate buffers offered improved pH stability as opposed to sodium phosphate buffers. Potassium Phosphate has also been used for the extraction of keratohyalin protein from bovine tissue.
A reagent with very high buffering capacity widely used in molecular biology
规格
规格或纯度
AR
英文名称
Potassium phosphate tribasic hydrate
储存条件
室温
运输条件
常规运输
名称和识别符
PubChem SID
分子类型
小分子
Smiles
O.[O-]P(=O)([O-])[O-].[K+].[K+].[K+]
Isomeric SMILES
O.[O-]P(=O)([O-])[O-].[K+].[K+].[K+]
关联CAS
PubChem CID
分子量
212.27 (as Anhydrous)
高级数据
化学和物理性质
溶解性
Soluble in water (100 mg/mL). Insoluble in alcohol.
密度
2.564
敏感性
对湿度敏感
分子量
230.280 g/mol
XLogP3
氢键供体数Hydrogen Bond Donor Count
1
氢键受体数Hydrogen Bond Acceptor Count
5
可旋转键计数Rotatable Bond Count
0
精确质量Exact Mass
229.855 Da
单同位素质量Monoisotopic Mass
229.855 Da
拓扑极表面积Topological Polar Surface Area
87.300 Ų
重原子数Heavy Atom Count
9
形式电荷Formal Charge
0
复杂度Complexity
36.800
同位素原子数Isotope Atom Count
0
定义的原子立体中心计数Defined Atom Stereocenter Count
0
未定义的原子立体中心计数Undefined Atom Stereocenter Count
0
定义的键立体中心计数Defined Bond Stereocenter Count
0
未定义的键立体中心计数Undefined Bond Stereocenter Count
0
所有立体化学键的总数The total count of all stereochemical bonds
0
共价键合单元计数Covalently-Bonded Unit Count
5
安全和危险性（GHS）
象形图
信号词
危险
危险声明
H303: 要是吞了可能有害
H313: 接触皮肤可能有害
H315: 引起皮肤刺激
H318: 造成严重的眼睛损伤
预防措施声明
P264: 处理后要彻底洗手。
P280: 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。
P310: 立即致电解毒中心或医生。
P321: 特殊处理（请参阅此标签上的...）。
P362: 脱下污染的衣服并洗净后再使用。
P305+P351+P338: 如进入眼睛：用水小心冲洗几分钟。如戴隐形眼镜并可方便地取出，取出隐形眼镜。继续冲洗。
P332+P313: 如发生皮肤刺激：求医/就诊。
质检证书(CoA,COO,BSE/TSE 和分析图谱)
溶液计算器
常见问题
本产品应如何储存？
请于室温条件下保存。
什么是「AR」？
「AR」是一个明确定义的分析纯度级别，适用于通用分析和试剂应用。它规定了最低含量百分比、对常见杂质（水分、重金属、灼烧残渣）的受控限值，以及批间一致性。「AR」是几个纯度级别之一——请根据方法的灵敏度和监管要求进行选择。
本产品如何运输？
本产品按常温标准条件运输，无需温控包装。
本产品的 CAS 号、分子式和分子量是多少？
本产品的 CAS 号为 115281-28-2，分子式为 K3PO4·xH2O，分子量为 212.27 (as Anhydrous) g/mol。
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危险品化学品经营许可证（带存储）