31146
Boric acid
puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., buffer substance, ≥99.8%
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About This Item
Linear Formula:
H3BO3
CAS Number:
Molecular Weight:
61.83
EC Number:
MDL number:
UNSPSC Code:
12352106
eCl@ss:
38120104
PubChem Substance ID:
NACRES:
NA.21
Recommended Products
grade
ACS reagent
puriss. p.a.
agency
USP/NF
reag. ISO
reag. Ph. Eur.
vapor pressure
2.6 mmHg ( 20 °C)
assay
≥99.8%
form
powder or crystals
impurities
≤0.005% insoluble in methanol
≤0.05% with methanol-HCl non-volat. matter
pH
3.6-4.0 (20 °C, 4%)
mp
160 °C (dec.) (lit.)
solubility
water: soluble
density
1.440 g/cm3
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General description
Boric acid can be used as a Lewis acid catalyst in organic synthesis to facilitate various organic reactions, including dehydration, hydrolysis, decarboxylation, and condensation reactions. It produces different borate anions and salts and can react with alcohols to produce borate esters. It is also used as a buffering agent and pH adjuster.
Boric acid is a very weak acid, having pH in the range of 3.6-4.0. Coulometric method for the determination of boric acid has been reported.
Application
Boric acid can be used as a precursor to synthesize boron carbon oxynitride thin films by the atmospheric pressure chemical vapor deposition (APCVD) method using carbon-rich methane and nitrogen-rich ammonia.
signalword
Danger
hcodes
Hazard Classifications
Repr. 1B
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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