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Sigma-Aldrich

磷酸钠 二元 十二水合物

puriss. p.a., crystallized, ≥99.0% (T)

别名:

磷酸氢二钠, 磷酸氢二钠 十二水合物

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About This Item

线性分子式:
Na2HPO4 · 12H2O
CAS号:
10039-32-4
分子量:
358.14
EC號碼:
231-448-7
MDL號碼:
MFCD00149181
分類程式碼代碼:
12161700
PubChem物質ID:
329763400
NACRES:
NA.21

等級

puriss. p.a.

品質等級

200

化驗

≥99.0% (T)

形狀

crystals

品質

crystallized

pH值

9.0-9.3 (25 °C, 50 mg/mL in H2O)

溶解度

water: soluble 35.8 g/L at 20 °C

負離子痕跡

chloride (Cl-): ≤5 mg/kg
fluoride (F-): ≤5 mg/kg
sulfate (SO42-): ≤50 mg/kg

正離子痕跡

As: ≤0.5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES 字串

O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O

InChI

1S/2Na.H3O4P.12H2O/c;;1-5(2,3)4;;;;;;;;;;;;/h;;(H3,1,2,3,4);12*1H2/q2*+1;;;;;;;;;;;;;/p-2

InChI 密鑰

DGLRDKLJZLEJCY-UHFFFAOYSA-L

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一般說明

磷酸钠是无色结晶钠盐。它被广泛用作分子生物学、生物化学和色谱研究的缓冲液。它以三种形式存在：一元（NaH2PO4）、二元（Na2HPO4）和三元（Na3PO4）。中性磷酸钠缓冲溶液通常由不同比例的一元和二元形式的磷酸钠制备而成。

應用

磷酸氢二钠十二水合物可用于制备 0.1M 磷酸盐缓冲液（pH 7.4）。

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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