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Merck
CN

B9876

Sodium tetraborate decahydrate

ReagentPlus®, ≥99.5%

Synonym(s):

Borax decahydrate, Sodium borate decahydrate

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About This Item

Linear Formula:
Na2B4O7 · 10H2O
CAS Number:
Molecular Weight:
381.37
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
215-540-4
MDL number:
Assay:
≥99.5%
Form:
powder
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agency

suitable for SM 4500 - NH3

Quality Level

product line

ReagentPlus®

assay

≥99.5%

form

powder

pH

9.2 (10 g/L)

density

1.73 g/mL at 25 °C (lit.)

storage temp.

room temp

SMILES string

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

InChI

1S/B4O7.2Na.10H2O/c5-1-7-3-9-2(6)10-4(8-1)11-3;;;;;;;;;;;;/h;;;10*1H2/q-2;2*+1;;;;;;;;;;

InChI key

CDMADVZSLOHIFP-UHFFFAOYSA-N

Application

Sodium tetraborate decahydrate is widely used to prepare buffer solution with a pH range approx 9.3. It can also be used as:
  • A component of a buffer solution used in the separation and estimation of thiamin and its phosphate esters in commercial tablets.
  • A fluxing agent in the preparation of ceramizable silicone rubber-derived composite materials.
  • A crosslinking agent in the synthesis of porous foams by reacting cellulose nanofibres with poly-vinyl alcohol.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany


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pictograms

Health hazardExclamation mark

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Danger

Hazard Classifications

Eye Irrit. 2 - Repr. 1B

flash_point_f

Not applicable

flash_point_c

Not applicable

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects



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Related Content

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.


Separation of thiamin and its phosphate esters by capillary zone electrophoresis and its application to the analysis of water-soluble vitamins
Shabangi M and Sutton JA
Journal of Pharmaceutical and Biomedical Analysis, 38, 66-71 (2005)
Structural packaging foams prepared by uni-directional freezing of paper sludge cellulose nanofibres and poly (vinyl alcohol)
Adu C, et al.
Materials Letters, 253, 242-245 (2019)
Improving the mechanical and electrical properties of ceramizable silicone rubber/halloysite composites and their ceramic residues by incorporation of different borates
Guo J, et al.
Polymers, 10, 388-388 (2018)



Global Trade Item Number

SKUGTIN
B9876-5KG04061833444016
B9876-1KG04061835277162
B9876-500G04061835277179