1.06304
Spectromelt® B 10
di-Sodium tetraborate, for X-ray fluorescence analysis
Synonym(s):
Borax
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About This Item
vapor pressure
7.3 hPa ( 1200 °C)
Quality Level
assay
≥99.0% (acidimetric)
form
powder
potency
>2000 mg/kg LD50, skin (Rabbit)
pH
9.2 (20 °C, 25 g/L in H2O)
mp
742 °C
solubility
water: soluble 49.74 g/L at 20 °C (68 °F, Regulation (EC) No. 440/2008)
density
2.37 g/cm3 at 20 °C
bulk density
700 kg/m3
anion traces
chloride (Cl-): ≤50 ppm, phosphate (PO43-): ≤20 ppm, silicate (as SiO2): ≤100 ppm, sulfate (SO42-): ≤50 ppm
cation traces
Ag: ≤5 ppm, Al: ≤10 ppm, Ba: ≤5 ppm, Ca: ≤10 ppm, Cd: ≤5 ppm, Co: ≤5 ppm, Cr: ≤5 ppm, Cu: ≤5 ppm, Fe: ≤10 ppm, Ga: ≤5 ppm, K: ≤10 ppm, Mg: ≤5 ppm, Mn: ≤5 ppm, Ni: ≤5 ppm, Pb: ≤5 ppm, Sr: ≤5 ppm, Zn: ≤5 ppm
storage temp.
2-30°C
SMILES string
[Na+].[Na+].[B+3].[B+3].[B+3].[B+3].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].O.O.O.O.O.O.O
InChI
1S/4B.2Na.7H2O.7O/h;;;;;;7*1H2;;;;;;;/q4*+3;2*+1;;;;;;;;7*-2
InChI key
HJIQVKXMQOLFFS-UHFFFAOYSA-N
Analysis Note
Chloride (Cl): ≤ 50 ppm
Phosphate (PO₄): ≤ 20 ppm
Silicate (SiO₂): ≤ 100 ppm
Sulfate (SO₄): ≤ 50 ppm
Ag (Silver): ≤ 5 ppm
Al (Aluminium): ≤ 10 ppm
Ba (Barium): ≤ 5 ppm
Ca (Calcium): ≤ 10 ppm
Cd (Cadmium): ≤ 5 ppm
Co (Cobalt): ≤ 5 ppm
Cr (Chromium): ≤ 5 ppm
Cu (Copper): ≤ 5 ppm
Fe (Iron): ≤ 10 ppm
Ga (Gallium): ≤ 5 ppm
K (Potassium): ≤ 10 ppm
Mg (Magnesium): ≤ 5 ppm
Mn (Manganese): ≤ 5 ppm
Ni (Nickel): ≤ 5 ppm
Pb (Lead): ≤ 5 ppm
Sr (Strontium): ≤ 5 ppm
Zn (Zinc): ≤ 5 ppm
Loss on ignition (800 °C): ≤ 1.0 %
Bulk density: about 70
Legal Information
signalword
Danger
hcodes
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
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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