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1.00169

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di-Boron trioxide

99.9995 Suprapur®

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Synonym(s):
di-Boron trioxide, Boric anhydride
Empirical Formula (Hill Notation):
B2O3
CAS Number:
Molecular Weight:
69.62
MDL number:
EC Index Number:
215-125-8

grade

for inorganic trace analysis

Quality Level

Assay

≥99.0% (from ignited substance)
99.9995%

form

solid

potency

3150 mg/kg LD50, oral (Rat)

pH

4 (25 °C, 10 g/L in H2O)

mp

450 °C

solubility

36 g/L

density

2.46 g/cm3 at 20 °C

bulk density

900‑1100 kg/m3

anion traces

chloride (Cl-): ≤5 ppm
phosphate (PO43-): ≤5 ppm
silicate (as SiO2): ≤1 ppm
sulfate (SO42-): ≤5 ppm

cation traces

Ag: ≤0.020 ppm
Al: ≤0.050 ppm
As: ≤0.010 ppm
Au: ≤0.010 ppm
Ba: ≤0.020 ppm
Be: ≤0.010 ppm
Ca: ≤0.100 ppm
Cd: ≤0.010 ppm
Co: ≤0.010 ppm
Cr: ≤0.020 ppm
Cu: ≤0.020 ppm
Fe: ≤0.050 ppm
In: ≤0.010 ppm
K: ≤0.20 ppm
Li: ≤0.010 ppm
Mg: ≤0.050 ppm
Mn: ≤0.010 ppm
Mo: ≤0.020 ppm
Na: ≤0.20 ppm
Ni: ≤0.020 ppm
Pb: ≤0.020 ppm
Sr: ≤0.020 ppm
Tl: ≤0.010 ppm
V: ≤0.020 ppm
Zn: ≤0.050 ppm

storage temp.

2-30°C

InChI

1S/B2O3/c3-1-5-2-4

InChI key

JKWMSGQKBLHBQQ-UHFFFAOYSA-N

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This Item
1.0016333907511615
di-Boron trioxide 99.9995 Suprapur®

Supelco

1.00169

di-Boron trioxide

di-Boron trioxide for silicate analysis

Supelco

1.00163

di-Boron trioxide

Boric anhydride 99.98% trace metals basis

Supelco

339075

Boric anhydride

Boric anhydride granulated, ≥98.0% (T)

Sigma-Aldrich

11615

Boric anhydride

assay

≥99.0% (from ignited substance), 99.9995%

assay

-

assay

99.98% trace metals basis

assay

≥98.0% (T), 98.0-102.0% (titration)

form

solid

form

solid

form

powder

form

solid

pH

4 (25 °C, 10 g/L in H2O)

pH

4 (25 °C, 10 g/L in H2O)

pH

-

pH

-

mp

450 °C

mp

450 °C

mp

450 °C (lit.)

mp

450 °C (lit.)

solubility

36 g/L

solubility

36 g/L

solubility

-

solubility

-

Analysis Note

Purity (metallic): ≥ 99.9995 %
Assay (from ignited substance): ≥ 99.0 %
Chloride (Cl): ≤ 5 ppm
Phosphate (PO): ≤ 5 ppm
Silicate (as SiO): ≤ 1 ppm
Sulfate (SO): ≤ 5 ppm
Ag (Silver): ≤ 0.020 ppm
Al (Aluminium): ≤ 0.050 ppm
As (Arsenic): ≤ 0.010 ppm
Au (Gold): ≤ 0.010 ppm
Ba (Barium): ≤ 0.020 ppm
Be (Beryllium): ≤ 0.010 ppm
Ca (Calcium): ≤ 0.100 ppm
Cd (Cadmium): ≤ 0.010 ppm
Co (Cobalt): ≤ 0.010 ppm
Cr (Chromium): ≤ 0.020 ppm
Cu (Copper): ≤ 0.020 ppm
Fe (Iron): ≤ 0.050 ppm
In (Indium): ≤ 0.010 ppm
K (Potassium): ≤ 0.20 ppm
Li (Lithium): ≤ 0.010 ppm
Mg (Magnesium): ≤ 0.050 ppm
Mn (Manganese): ≤ 0.010 ppm
Mo (Molybdenum): ≤ 0.020 ppm
Na (Sodium): ≤ 0.20 ppm
Ni (Nickel): ≤ 0.020 ppm
Pb (Lead): ≤ 0.020 ppm
Sr (Strontium): ≤ 0.020 ppm
Tl (Thallium): ≤ 0.010 ppm
V (Vanadium): ≤ 0.020 ppm
Zn (Zinc): ≤ 0.050 ppm

Legal Information

SUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Hazard Classifications

Repr. 1B

Storage Class Code

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


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