Sodium tetraborate decahydrate

Product Name

Sodium tetraborate decahydrate, puriss. p.a., ACS reagent, reag. ISO, buffer substance, ≥99.5%

InChI key

CDMADVZSLOHIFP-UHFFFAOYSA-N

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;;;;;;;;;;

SMILES string

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

grade

ACS reagent
puriss. p.a.

agency

reag. ISO

assay

≥99.5%

form

powder or crystals

pH

9.0-9.6 (20 °C, 5%)

density

1.73 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤10 mg/kg
phosphate (PO₄^3-): ≤10 mg/kg
sulfate (SO₄^2-): ≤50 mg/kg

cation traces

As: ≤1 mg/kg
Ca: ≤50 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Pb: ≤5 mg/kg

Quality Level

200