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B3545

Sigma-Aldrich

Sodium tetraborate decahydrate

BioXtra, ≥99.5%

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Synonym(s):
Borax decahydrate, Sodium borate decahydrate
Linear Formula:
Na2B4O7 · 10H2O
CAS Number:
Molecular Weight:
381.37
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

product line

BioXtra

Quality Level

assay

≥99.5%

form

powder

impurities

≤0.001% Phosphorus (P)
≤0.1% Insoluble matter

pH

9.2 (10 g/L)

solubility

H2O: 0.1 M, clear, colorless

density

1.73 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.05%
sulfate (SO42-): ≤0.05%

cation traces

Al: ≤0.0005%
Ca: ≤0.01%
Cu: ≤0.0005%
Fe: ≤0.001%
K: ≤0.005%
Mg: ≤0.0005%
NH4+: ≤0.05%
Pb: ≤0.001%
Zn: ≤0.0005%

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

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1 of 4

This Item
B98763145711625
vibrant-m

B3545

Sodium tetraborate decahydrate

Premium Grade
vibrant-m

B9876

Sodium tetraborate decahydrate

-
vibrant-m

31457

Sodium tetraborate decahydrate

Essential Grade
vibrant-m

11625

Sodium tetraborate decahydrate

Essential Grade
Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

product line

BioXtra

product line

ReagentPlus®

product line

-

product line

-

form

powder

form

powder

form

powder or crystals

form

crystalline

pH

9.2 (10 g/L)

pH

9.2 (10 g/L)

pH

9.0-9.6 (20 °C, 5%)

pH

9.0-9.6 (20 °C, 5%)

density

1.73 g/mL at 25 °C (lit.)

density

1.73 g/mL at 25 °C (lit.)

density

1.73 g/mL at 25 °C (lit.)

density

1.73 g/mL at 25 °C (lit.)

Application

Sodium tetraborate decahydrate has been used:
  • as a buffer component in biotinylation assay.
  • in preparation of methylene blue solution for histological staining.
  • as a component of trace metal solution for medium supplementation.

Biochem/physiol Actions

Sodium tetraborate decahydrate also called borax. Guar gum based gels crosslinked by borax are effective for wastewater treatment. Borax is used in the preparation of detergents and cosmetics. Borax elicits toxicity in the brain especially in aquatic organisms resulting in edema and congestion.

Legal Information

pictograms

Exclamation markHealth hazard

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Repr. 1B

Storage Class

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges


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Borax cross-linked guar gum hydrogels as potential adsorbents for water purification
Thombare N, et al.
Carbohydrate Polymers, 168, 274-281 (2017)
Antimicrobial agents, triclosan, chloroxylenol, methylisothiazolinone and borax, used in cleaning had genotoxic and histopathologic effects on rainbow trout
Capkin E, et al.
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Growth and properties of sodium tetraborate decahydrate single crystals
Goel N, et al.
Materials Research Bulletin, 48(4), 1632-1636 (2013)
Differentiation of adipose stem cells seeded towards annulus fibrosus cells on a designed poly (trimethylene carbonate) scaffold prepared by stereolithography
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