化合物信息

white, glassy solid

1860 °C, sublimates at 1500 °C

22 g/L in water

partially soluble in methanol

~ 4

2.460 g/cm³, liquid;
2.55 g/cm³, trigonal;
3.11–3.146 g/cm³, monoclinic

2.46 g/mL at 25 °C(lit.)

450 °C (trigonal)
510 °C (tetrahedral)

450 °C(lit.)

>1 (vs air)

ED7900000

3150 mg/kg (oral, rat)

有毒 (T)

1

Danger

60-61

dust mask type N95 (US), Eyeshields, Gloves

53-45

P201-P308+P313

H360FD

B2O3

99.999% trace metals basis

≥97.0% (T)

99.98% trace metals basis

99% (after heating)

≥98% (T)

Na: ≤2000 mg/kg

Co: ≤50 mg/kg

K: ≤100 mg/kg

Cu: ≤50 mg/kg

Pb: ≤50 mg/kg

Cd: ≤50 mg/kg

Ni: ≤50 mg/kg

Zn: ≤50 mg/kg

Ca: ≤50 mg/kg

Fe: ≤50 mg/kg

Fe: ≤5 mg/kg

Zn: ≤5 mg/kg

Co: ≤5 mg/kg

Ag: ≤5 mg/kg

Tl: ≤10 mg/kg

Cr: ≤5 mg/kg

Al: ≤50 mg/kg

Ca: ≤10 mg/kg

Bi: ≤5 mg/kg

Cu: ≤5 mg/kg

Pb: ≤30 mg/kg

Sr: ≤5 mg/kg

K: ≤30 mg/kg

Ni: ≤5 mg/kg

Ba: ≤5 mg/kg

Cd: ≤5 mg/kg

Mn: ≤5 mg/kg

Na: ≤200 mg/kg

Mg: ≤20 mg/kg

Mo: ≤5 mg/kg

Fe: ≤300 mg/kg

purum p.a.

puriss. p.a.

sulfate (SO42-): ≤50 mg/kg

chloride (Cl-): ≤50 mg/kg

chloride (Cl-): ≤20 mg/kg

≤3% loss on ignition, 900 °C

≤3% loss on ignition, 800 °C

<10% water and/or CO2(can be removed by heating at 250°C.)

granulated