跳转至内容

Dear Customer:

The current international situation is complex and volatile, and uncertain tariff policies may potentially impact our product prices. Given these uncertainties, we value your understanding regarding order-related matters.

If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

Merck
CN
所有图片(4)

主要文件

查看所有文档

S9640

Sigma-Aldrich

四硼酸钠 十水合物

ACS reagent, ≥99.5%

别名:

硼砂 十水合物, 硼酸钠 十水合物

登录查看公司和协议定价

选择尺寸

25 G
¥852.42
100 G
¥2,903.41
250 G
¥6,381.78
1 KG
¥17,876.60

¥852.42

国内现货，预计发货时间2025年4月14日详情

获取大包装报价
所有图片(4)

选择尺寸

变更视图
25 G
¥852.42
100 G
¥2,903.41
250 G
¥6,381.78
1 KG
¥17,876.60

About This Item

线性分子式:
Na2B4O7 · 10H2O
CAS号:
1303-96-4
分子量:
381.37
EC 号:
215-540-4
MDL编号:
MFCD00149193
UNSPSC代码:
12352302
PubChem化学物质编号:
329824630
NACRES:
NA.21

¥852.42

国内现货，预计发货时间2025年4月14日详情

获取大包装报价

等级

ACS reagent

Agency

suitable for SM 4500 - NH3

蒸汽压

0.213 hPa ( 20 °C)

方案

≥99.5%

表单

powder or crystals

杂质

≤0.005% Insoluble matter

pH值（酸碱度）

9.15-9.20 (25 °C, 0.01 M in solution)

密度

1.73 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.005%

痕量阳离子

Ca: ≤0.005%
Fe: ≤5 ppm
heavy metals (as Pb): ≤0.001%

正在寻找类似产品? 访问 产品对比指南

相关类别

比较类似商品

查看完整比较结果

显示差异

1 of 4

此商品
SH2831SH2731SH2631
MISSION® shRNA Human Gene Family Set, Lentiviral Particles G-Protein Coupled Receptors

SH0231

MISSION® shRNA Human Gene Family Set, Lentiviral Particles

MISSION® shRNA Human Gene Family Set, Lentiviral Particles T-Cell Activation

SH2831

MISSION® shRNA Human Gene Family Set, Lentiviral Particles

MISSION® shRNA Human Gene Family Set, Lentiviral Particles JAK-STAT Pathway

SH2731

MISSION® shRNA Human Gene Family Set, Lentiviral Particles

MISSION® shRNA Human Gene Family Set, Lentiviral Particles Helicases

SH2631

MISSION® shRNA Human Gene Family Set, Lentiviral Particles

Gene Information

Gene Information

Gene Information

Gene Information

storage temp.

−70°C

storage temp.

−70°C

storage temp.

−70°C

storage temp.

−70°C

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

一般描述

十水合四硼酸钠是一种天然存在的材料，可用作许多有机转化的催化剂或添加剂，如内夫反应、克内文纳格尔缩合反应、取代、加成、邻二醇的选择性甲基化和三甲基硅基炔酮的脱硅基化。

应用

十水四硼酸钠可作为催化剂用于：
  • 使用硫醇合成 β-羟基硫化物，对 1,2-环氧化合物进行区域选择性硫解。
  • 硫醇与缺电子烯烃的杂 Michael 加成，以合成相应的 β-加合物。
  • 无溶剂 Biginelli 反应，以合成 3,4-二氢嘧啶-2(1H)-酮。
还可作为添加剂制备具有高介电性能的聚吡咯-硼砂复合材料。

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

  • 技术规格说明书

    • 历史批次信息供参考:

    分析证书(COA)

    Lot/Batch Number
    BCCN0281
    BCCM4928
    WXBF3070V
    BCCL9614
    BCCL9613

    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

    Maxime Mivelaz et al.
    Methods (San Diego, Calif.), 184, 112-124 (2020-02-01)
    In eukaryotic cells, the genome is packaged into chromatin and exists in different states, ranging from open euchromatic regions to highly condensed heterochromatic regions. Chromatin states are highly dynamic and are organized by an interplay of histone post-translational modifications and
    Sinan Ince et al.
    Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS), 24(3), 161-164 (2010-06-24)
    The aims of this study were to clarify the effects of high dietary supplementation with boric acid and borax, called boron (B) compounds, on lipid peroxidation (LPO), antioxidant activity, some vitamin levels, and DNA damage in rats. Thirty Sprague Dawley
    Uttam Manna et al.
    The journal of physical chemistry. B, 113(27), 9137-9142 (2009-06-18)
    We report a multilayer film of poly(vinyl alcohol) (PVA)-borate complex and chitosan by using a layer-by-layer approach. PVA is an uncharged polymer, but hydroxyl functional groups of PVA can be cross-linked by using borax as a cross-linking agent. As a
    Eunice F S Vieira et al.
    Biomacromolecules, 9(4), 1195-1199 (2008-03-19)
    Oxidized alginate (ADA) and oxidized alginate blended with chitosan (ADA-Chit) were prepared in the presence of borax and CaCl 2, and their interactions with an antifolate drug, pyrimethamine (PYR), have been investigated. Tablets with a mean diameter of 1.2 +/-
    Hasan Turkez
    Journal of applied toxicology : JAT, 28(5), 658-664 (2007-11-21)
    Titanium dioxide (TiO(2)) is a potential carcinogenic/mutagenic agent although it is used in many areas including medical industries and cosmetics. Boron (as boric acid and borax) has also well-described biological effects and therapeutic benefits. In a previous study, sister-chromatid exchanges
    查看所有相关文献

    相关内容

    Environmental Methods Consumables Look Up Tool

    This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.

    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.

    联系客户支持