Home Categories Inorganic chemistry Boron oxide
A1248912

Boron oxide , 99.999%metalsbasis , 1303-86-2

Synonym(s):
BO;Boric anhydride;Boron trioxide;Boric Oxide;Boron Trioxide, Boric oxide

CAS NO.:1303-86-2

Empirical Formula: B2O3

Molecular Weight: 69.62

MDL number: MFCD00011315

EINECS: 215-125-8

Pack Size Price Stock Quantity
5G RMB135.20 In Stock
25G RMB423.20 In Stock
100G RMB1351.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 450 °C(lit.)
Boiling point: 1860 °C
Density  2.46 g/mL at 25 °C(lit.)
vapor density  >1 (vs air)
vapor pressure  1Pa
Flash point: 1860°C
storage temp.  Inert atmosphere,Room Temperature
solubility  36g/l
form  pellets
color  White
Specific Gravity 2.46 +/- 0.01
Odor Odorless
PH 4 (10g/l, H2O, 25℃)
Water Solubility  36 g/L (25 ºC)
Sensitive  Hygroscopic
Merck  14,1337
crystal system Three sides
Space group P31
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.43340.43340.833490901200.1356

Exposure limits ACGIH: TWA 10 mg/m3
OSHA: TWA 15 mg/m3
NIOSH: IDLH 2000 mg/m3; TWA 10 mg/m3
Stability: Stable. Moisture sensitive. Incompatible with water.
InChIKey JKWMSGQKBLHBQQ-UHFFFAOYSA-N

Description and Uses

Boron oxide is a noncombustible, colorless,semitransparent lumps or hard, white, odorless crystals,with slightly bitter taste. Molecular weight=69.64; Boilingpoint=about 1860℃; Freezing/Melting point=about450℃. Hazard Identification (based on NFPA-704 MRating System): Health 2, Flammability 0, Reactivity 0.Moderately soluble in water; solubility=(moderate) 3%;slow reaction.

In preparation of fluxes; component of enamels and glass; catalyst in organic reaction

Safety

Symbol(GHS) 
GHS08
Signal word  Danger
Hazard statements  H360D
Precautionary statements  P201-P202-P280-P308+P313-P405-P501
Hazard Codes  Xi,T
Risk Statements  36/37/38-61-60
Safety Statements  26-37/39-45-53
OEB B
OEL TWA: 10 mg/m3
WGK Germany  1
RTECS  ED7900000
3-10
TSCA  Yes
HS Code  28100010
Toxicity LD50 orally in Rabbit: 3150 mg/kg
IDLA 2,000 mg/m3

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