硼酸酐 [氧化硼, 硼酐]，di-Boron trioxide；99.9995 Suprapur®

等级

for inorganic trace analysis

质量水平

100

测定

≥99.0% (from ignited substance)
99.9995%

形式

solid

效能

3150 mg/kg LD₅₀, oral (Rat)

pH值（酸碱度）

4 (25 °C, 10 g/L in H₂O)

mp

450 °C

溶解性

36 g/L

密度

2.46 g/cm³ at 20 °C

堆积密度

900‑1100 kg/m³

痕量阴离子

chloride (Cl^-): ≤5 ppm
phosphate (PO₄^3-): ≤5 ppm
silicate (as SiO₂): ≤1 ppm
sulfate (SO₄^2-): ≤5 ppm

痕量阳离子

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

储存温度

2-30°C

InChI

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

InChI key

JKWMSGQKBLHBQQ-UHFFFAOYSA-N