A1249012
Boron oxide , AR,98% , 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 |
| 100g | RMB31.20 | In Stock |
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| 500G | RMB71.20 | In Stock |
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| 2.5KG | RMB215.20 | In Stock |
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| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 450 °C(lit.) |
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| Boiling point: | 1860 °C |
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| Density | 2.46 g/mL at 25 °C(lit.) |
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| vapor density | >1 (vs air) |
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| vapor pressure | 1Pa |
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| Flash point: | 1860°C |
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| storage temp. | Inert atmosphere,Room Temperature |
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| solubility | 36g/l |
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| form | pellets |
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| Specific Gravity | 2.46 +/- 0.01 |
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| color | White |
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| PH | 4 (10g/l, H2O, 25℃) |
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| Odor | Odorless |
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| Water Solubility | 36 g/L (25 ºC) |
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| Sensitive | Hygroscopic |
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| Merck | 14,1337 |
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| crystal system | Three sides |
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| Space group | P31 |
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| Lattice constant |
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| Exposure limits | ACGIH: TWA 10 mg/m3 OSHA: TWA 15 mg/m3 NIOSH: IDLH 2000 mg/m3; TWA 10 mg/m3 |
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| Stability: | Stable. Moisture sensitive. Incompatible with water. |
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| InChIKey | JKWMSGQKBLHBQQ-UHFFFAOYSA-N |
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| CAS DataBase Reference | 1303-86-2(CAS DataBase Reference) |
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| NIST Chemistry Reference | Diboron trioxide(1303-86-2) |
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| EPA Substance Registry System | Boric oxide (1303-86-2) |
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 |
| F | 3-10 |
| TSCA | Yes |
| HS Code | 28100010 |
| Hazardous Substances Data | 1303-86-2(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 3150 mg/kg |
| IDLA | 2,000 mg/m3 |
