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1.06308

Supelco

di-Sodium tetraborate decahydrate

for analysis ACS,ISO,Reag. Ph Eur

Synonym(s):

di-Sodium tetraborate decahydrate, Borax, Sodium biborate decahydrate, Sodium borate decahydrate

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About This Item

Empirical Formula (Hill Notation):
B4Na2O7 · 10H2O
CAS Number:
Molecular Weight:
381.37
MDL number:
UNSPSC Code:
12352302
EC Index Number:
215-540-4
NACRES:
NB.21

grade

ACS reagent

Quality Level

agency

reag. ISO
reag. Ph. Eur.

vapor pressure

0.213 hPa ( 20 °C)

assay

99.5-103.0% (acidimetric)

form

crystals

potency

2660 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rabbit)

pH

9.2 (20 °C, 47 g/L in H2O)

mp

75 °C (Elimination of water of crystallisation)

solubility

49.74 g/L

density

1.72 g/cm3 at 20 °C

bulk density

750 kg/m3

storage temp.

2-30°C

InChI

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

InChI key

OJPFLODMGUZMKD-UHFFFAOYSA-N

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Application


  • Inhibition of boric acid and sodium borate on the biological activity of microorganisms in an aerobic biofilter.: This research examines the effects of di-sodium tetraborate decahydrate on the biological activity of microorganisms in an aerobic biofilter. The study finds that di-sodium tetraborate decahydrate can inhibit microbial activity, which has significant implications for waste treatment and environmental management. This inhibition property can be utilized to control microbial populations in various industrial processes, enhancing the efficiency and effectiveness of biofiltration systems (Gunes, 2013).

Analysis Note

Assay (acidimetric): 99.5 - 103.0 %
Identity: passes test
Appearance of solution: passes test
Insoluble matter: ≤ 0.005 %
pH-value (0.01 M Solution, 25 °C): 9.15 - 9.20
pH-value (4 %, water): 9.0 - 9.6
Chloride (Cl): ≤ 0.0007 %
Phosphate (PO₄): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.0005 %
Ca (Calcium): ≤ 0.005 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
NH₄ (Ammonium): ≤ 0.001 %
Pb (Lead): ≤ 0.0005 %
Corresponds to ACS,ISO,Reag. Ph Eur

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


Certificates of Analysis (COA)

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