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221732

Sigma-Aldrich

四硼酸钠

99%

别名:

Borax，熔融

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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:
24853258
NACRES:
NA.22
方案:
99%
表单:
solid

Agency

suitable for SM 4500 - NH3

质量水平

200

方案

99%

表单

solid

mp

741 °C (lit.)

密度

2.367 g/mL at 25 °C (lit.)

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

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相关类别

应用

在存在TEMPO/NaOCl的情况下，四硼酸钠（Na2B4O7）可用作一种助催化剂，用于在更环保的非氯化溶剂中将乙醇氧化成相应羰基化合物。此外，还可在以葡萄糖作为碳前体的碳气凝胶制备中用作结构导向剂和催化剂。

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

从最新的版本中选择一种：

分析证书(COA)

Lot/Batch Number
BCCM5965
BCCK2268
BCCH6343
BCCG2816
BCCD1024

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. Is Product 221732, Sodium tetraborate, soluble in water?

    Per the chemicals encyclopedia published by the Royal Society of Chemistry this product is slow to dissolve in water and may require heat at 40°C and stirring. We have tested the solubility at 33 mg/mL water.

  6. Do we offer a more water soluble Sodium tetraborate?

    Product No. S9640, Sodium tetraborate decahydrate, is soluble in water at 62 mg/mL or 160 mM. If you use hot water you can get a 4.4 M solution.

  7. What is the appearance of Product 221732,  Sodium tetraborate?

    This product is a powder. It may be either crystalline or granular.

  8. Is Product 221732,  Sodium tetraborate, a fused borax?

    Yes, Product No. 221732 is a fused borax.

  9. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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