跳转至内容
Merck
CN
所有图片(1)

主要文件

查看所有文档

71997

Sigma-Aldrich

无水硼砂

BioUltra, anhydrous, ≥99%

别名:

四硼酸钠

登录查看公司和协议定价
所有图片(1)

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
方案:
≥99%
表单:
crystals
溶解性:
H2O: 0.1 M at 20 °C, clear, colorless

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

痕量阳离子

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

λ

0.1 M in H2O

紫外吸收

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

SMILES字符串

[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 key

UQGFMSUEHSUPRD-UHFFFAOYSA-N

正在寻找类似产品? 访问 产品对比指南

相关类别

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

没有发现合适的版本？

如果您需要特殊版本，可通过批号或批次号查找具体证书。

搜索COA

已有该产品？

在文件库中查找您最近购买产品的文档。

访问文档库

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
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
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])
查看所有相关文献

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系技术服务部门