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339067

Sigma-Aldrich

Boric acid

99.97% trace metals basis

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Synonym(s):
Boracic acid, Borofax
Linear Formula:
H3BO3
CAS Number:
10043-35-3
Molecular Weight:
61.83
EC Number:
233-139-2
MDL number:
MFCD00011337
eCl@ss:
38120104
PubChem Substance ID:
24860608

vapor pressure

2.6 mmHg ( 20 °C)

Assay

99.97% trace metals basis

form

crystalline powder

mp

160 °C (dec.) (lit.)

solubility

water: soluble

density

1.440 g/cm3

application(s)

histology

SMILES string

OB(O)O

InChI

1S/BH3O3/c2-1(3)4/h2-4H

InChI key

KGBXLFKZBHKPEV-UHFFFAOYSA-N

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This Item
B025231146B0394
Boric acid 99.97% trace metals basis

Sigma-Aldrich

339067

Boric acid

Boric acid ReagentPlus®, ≥99.5%

Sigma-Aldrich

B0252

Boric acid

Boric acid puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., buffer substance, ≥99.8%

Sigma-Aldrich

31146

Boric acid

Boric acid ACS reagent, ≥99.5%

Sigma-Aldrich

B0394

Boric acid

assay

99.97% trace metals basis

assay

≥99.5%

assay

≥99.8%

assay

≥99.5%

form

crystalline powder

form

powder

form

powder or crystals

form

powder

mp

160 °C (dec.) (lit.)

mp

160 °C (dec.) (lit.)

mp

160 °C (dec.) (lit.)

mp

160 °C (dec.) (lit.)

solubility

water: soluble

solubility

water: 40 mg/mL, clear, colorless

solubility

water: soluble

solubility

water: soluble

density

1.440 g/cm3

density

1.440 g/cm3

density

1.440 g/cm3

density

1.440 g/cm3

General description

Boric acid is a weak monobasic acid, it accepts OH- ions, hence is a Lewis acid. In boric acid, B is sp2 hybridized, forming a planar triangle structure. The principal oxide of boron, B2O3, is obtained as a vitreous solid by dehydration of boric acid at red heat.

Application

Boric acid was used as a constituent in mineral sacrificial paste. 1 It has been used as a buffer in electrodeposition of nickel. 2

Packaging

Packaged in poly bottles

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H360FD

Hazard Classifications

Repr. 1B

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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