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71997

Sigma-Aldrich

无水硼砂

BioUltra, anhydrous, ≥99%

别名:

四硼酸钠

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选择尺寸

5 G
¥960.36

¥960.36

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5 G
¥960.36

About This Item

线性分子式:
Na2B4O7
CAS号:
1330-43-4
分子量:
201.22
EC 号:
215-540-4
MDL编号:
MFCD00081185
UNSPSC代码:
12352302
PubChem化学物质编号:
329763686
NACRES:
NA.25

¥960.36

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等级

reagent grade

质量水平

200

产品线

BioUltra

方案

≥99%

表单

crystals

杂质

insoluble matter, passes filter test

缺失

≤1% loss on drying, 20 °C (HV)

pH值（酸碱度）

9.0-10.5 (25 °C, 0.1 M in H2O)

溶解性

H2O: 0.1 M at 20 °C, clear, colorless

痕量阴离子

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

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此商品
TSTP02500GTTP04700ATTP02500
Isopore™膜滤器 Isopore™, filter diam. 47 mm, hydrophilic, white

HTTP04700

Isopore™膜滤器

Isopore™滤膜 Isopore™, filter diam. 25 mm, hydrophilic

TSTP02500

Isopore™滤膜

Isopore™膜滤器 Isopore™, filter diam. 47 mm, hydrophilic, white

GTTP04700

Isopore™膜滤器

Isopore滤膜 Isopore™, filter diam. 25 mm, hydrophilic

ATTP02500

Isopore滤膜

manufacturer/tradename

Isopore™, Millipore

manufacturer/tradename

Isopore™, Millipore

manufacturer/tradename

Isopore™, Millipore

manufacturer/tradename

Isopore™, Millipore

parameter

≥7 L/min air flow rate at 10 psi, 18 mL/min-cm2-psi water flow rate (maximum flow rate per 1.0 psi), ≥50 mL/min-cm2 water flow rate at 10 psi (typical results), 140 °C max. temp.

parameter

0.868 L/min-cm2-psi air flow rate, 140 °C max. temp., 3628 mL/min-cm2-psi water flow rate (maximum flow rate per 1.0 psi), ~475 mL/min-cm2 water flow rate at 10 psi (typical results)

parameter

0.007 L/min-cm2-psi air flow rate, 140 °C max. temp., 3.36 mL/min-cm2-psi water flow rate (maximum flow rate per 1.0 psi), ~16 mL/min-cm2 water flow rate at 10 psi (typical results)

parameter

125 mL/min-cm2-psi water flow rate (maximum flow rate per 1.0 psi), 140 °C max. temp., 4.08 L/min-cm2-psi air flow rate, ~85 mL/min-cm2 water flow rate at 10 psi (typical results)

material

plain filter, white filter, polycarbonate membrane

material

plain filter, polycarbonate membrane, white filter

material

plain filter, polycarbonate membrane, white filter

material

plain filter, polycarbonate membrane, white filter

pore size

0.4 μm pore size, 10-20 % porosity

pore size

11.3 % porosity, 3.0 μm pore size

pore size

0.22 μm pore size, 13.8 % porosity

pore size

0.8 μm pore size, 5-20 % porosity

sterility

non-sterile

sterility

non-sterile

sterility

non-sterile

sterility

non-sterile

feature

hydrophilic

feature

hydrophilic

feature

hydrophilic

feature

hydrophilic

法律信息

象形图

Health hazardExclamation mark
GHS08,GHS07

警示用语：

Danger

危险声明

H319,H360FD

危险分类

Eye Irrit. 2 - Repr. 1B

储存分类代码

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

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

    • 历史批次信息供参考:

    分析证书(COA)

    Lot/Batch Number
    BCCM6847
    BCCL6820
    BCCJ1338
    BCCG6523
    BCCD7933

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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
    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
    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.).
    Tomomi Ishido et al.
    Analytical biochemistry, 400(1), 148-150 (2010-01-21)
    We describe a new low-ionic-strength sodium threonine (STh) medium with the advantage of avoiding relative DNA band migration changes following electrophoresis of supercoiled DNA in agarose gel when substituted for the standard conductive medium of TBE (Tris-boric acid-ethylenediaminetetraacetic acid [EDTA])
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