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71643

Sigma-Aldrich

磷酸钠 二元 二水合物

BioUltra, for molecular biology, ≥99.0% (T)

同義詞:

sec-磷酸钠, 磷酸二钠, 磷酸氢二钠 二水合物

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About This Item

線性公式:
Na2HPO4 · 2H2O
CAS號碼:
分子量::
177.99
EC號碼:
MDL號碼:
分類程式碼代碼:
12161700
PubChem物質ID:
NACRES:
NA.25
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等級

for molecular biology

品質等級

產品線

BioUltra

化驗

≥99.0% (T)

形狀

crystals

雜質

DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected
≤0.001% total nitrogen (N)

pH值

8.9-9.2 (25 °C, 0.5 M in H2O)

溶解度

H2O: 0.5 M at 20 °C, clear, colorless

負離子痕跡

chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg

正離子痕跡

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤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
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

&lambda ;

0.5 M in H2O

紫外吸收

λ: 260 nm Amax: 0.03
λ: 280 nm Amax: 0.03

應用

diagnostic assay manufacturing

SMILES 字串

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

InChI

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

InChI 密鑰

KDQPSPMLNJTZAL-UHFFFAOYSA-L

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應用

磷酸氢二钠二水合物已用于制备防冻液,用于分析大鼠中枢神经系统(CNS)的信号转导模式[1]。它还用于制备磷酸钠缓冲液。[2]

其他說明

凝胶电泳 - 用于含有甲酰胺的变性凝胶的电泳缓冲液组分[3]

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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分析證明 (COA)

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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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