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Merck
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文件

71997

Sigma-Aldrich

无水硼砂

BioUltra, anhydrous, ≥99%

别名:

四硼酸钠

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About This Item

线性分子式:
Na2B4O7
CAS号:
1330-43-4
分子量:
201.22
EC號碼:
215-540-4
MDL號碼:
MFCD00081185
分類程式碼代碼:
12352302
PubChem物質ID:
329763686
NACRES:
NA.25

品質等級

200

產品線

BioUltra

化驗

≥99%

形狀

crystals

雜質

insoluble matter, passes filter test

損耗

≤1% loss on drying, 20 °C (HV)

pH值

9.0-10.5 (25 °C, 0.1 M in H2O)

溶解度

H2O: 0.1 M at 20 °C, clear, colorless

負離子痕跡

chloride (Cl-): ≤10 mg/kg
phosphate (PO43-): ≤20 mg/kg
sulfate (SO42-): ≤50 mg/kg

正離子痕跡

Al: ≤5 mg/kg
As: ≤0.5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤50 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 ；

0.1 M in H2O

紫外吸收

λ: 260 nm Amax: ≤0.020
λ: 280 nm Amax: ≤0.015

SMILES 字串

[Na+].[Na+].[O-]B1Ob2ob([O-])ob(O1)o2

InChI

1S/B4O7.2Na/c5-1-7-3-9-2(6)10-4(8-1)11-3;;/q-2;2*+1

InChI 密鑰

UQGFMSUEHSUPRD-UHFFFAOYSA-N

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相关类别

法律資訊

象形圖

Health hazardExclamation mark
GHS08,GHS07

訊號詞

Danger

危險聲明

H319,H360FD

危險分類

Eye Irrit. 2 - Repr. 1B

儲存類別代碼

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

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 P3 (EN 143) respirator cartridges

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分析证书(COA)

Lot/Batch Number
BCCL6820
BCCJ1338
BCCG6523
BCCD7933
BCBW8475

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William R Gunther et al.
Nature communications, 3, 1109-1109 (2012-10-11)
Carbohydrate epimerization is an essential technology for the widespread production of rare sugars. In contrast to other enzymes, most epimerases are only active on sugars substituted with phosphate or nucleotide groups, thus drastically restricting their use. Here we show that
Qianqian Zhu et al.
Journal of chromatography. A, 1246, 35-39 (2012-03-03)
A technique known as field enhancement sample stacking (FESS) and capillary electrophoresis (CE) separation has been developed to analyze and detect organic acids in the three traditional Chinese medicines (such as Portulaca oleracea L., Crataegus pinnatifida and Aloe vera L.).
Dušan Koval et al.
Analytical biochemistry, 413(1), 8-15 (2011-02-09)
Two capillary electrophoretic methods were developed and evaluated for measurement of glycated hemoglobin A1c (HbA1c). First, a capillary electrophoresis analysis is performed with a sodium tetraborate buffer (pH 9.3) as background electrolyte in a neutrally coated capillary. HbA1c is separated
Shridhar K Sathe et al.
Journal of agricultural and food chemistry, 57(17), 7846-7856 (2009-08-07)
The solubility of almond, Brazil nut, cashew nut, hazelnut, macadamia, pecan, pine nut, pistachio, walnut, and peanut proteins in several aqueous solvents was qualitatively and quantitatively assessed. In addition, the effects of extraction time and ionic strength on protein solubility
Danyue Zhao et al.
Electrophoresis, 33(15), 2424-2432 (2012-08-14)
An efficient and sensitive method for the separation and determination of three essential amino acids and three B vitamins by CE-LIF with a simultaneous derivatization procedure was developed. The conditions for derivatization and separation of these micronutrients were investigated. FITC
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