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
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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signalword
Danger
hcodes
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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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)