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Merck
CN

B7901

Boric acid

suitable for electrophoresis, ≥99.5%

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About This Item

Linear Formula:
H3BO3
CAS Number:
10043-35-3
Molecular Weight:
61.83
PubChem Substance ID:
24892029
eCl@ss:
38120104
UNSPSC Code:
12161700
NACRES:
NA.25
EC Number:
233-139-2
MDL number:
MFCD00011337

Key Documents

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Product Name

Boric acid, suitable for electrophoresis, ≥99.5%

InChI key

KGBXLFKZBHKPEV-UHFFFAOYSA-N

InChI

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

SMILES string

OB(O)O

grade

electrophoresis grade

vapor pressure

2.6 mmHg ( 20 °C)

assay

≥99.5%

form

powder

technique(s)

electrophoresis: suitable

impurities

≤0.005% Insoluble in methanol

pH

8.2-10.1

mp

160 °C (dec.) (lit.)

solubility

H2O: 40 mg/mL, clear, colorless

density

1.43 g/cm3 at 20 °C

anion traces

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.01%

cation traces

Ca: ≤0.005%
Fe: ≤0.001%
heavy metals (as Pb): ≤0.001%

suitability

suitable for electrophoresis (as a reagent)

storage temp.

room temp

Quality Level

200

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Application

Boric acid has been used as a component of tris borate buffer:
  • for native polyacrylamide gel electrophoresis (PAGE) and denaturing urea-PAGE of tRNA samples(80)
  • for urea-polyacrylamide electrophoresis of RNA samples(81)
  • for agarose gel electrophoresis of DNA samples(82)

Biochem/physiol Actions

Boric acid is used in the periodontal therapy as an irrigation solution as it elicits bactericidal effects in microbial biofilms in root canal. Boric acid may favor osteoblastic activity and inhibit bone loss. It inhibits Candida albicans fungal infection and has potential to treat vaginal infection.

General description

Boric acid is a weak acid and is widely used in multi-purpose solutions (MPS) as a buffering agent. It is less toxic and non-volatile in nature.

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H360FD

Hazard Classifications

Repr. 1B

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCM9816
BCCL8241
BCCM1470
BCCK4313
BCCH9240

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Antifungal mechanisms supporting boric acid therapy of Candida vaginitis
De Seta F, et al.
The Journal of Antimicrobial Chemotherapy, 63(2), 325-336 (2008)
Antibacterial effect of different concentration of boric acid against enterococcus faecalis biofilms in root canal
Zan R, et al.
Marmara Dental Journal, 2, 76-80 (2013)
Nonclinical safety evaluation of boric acid and a novel borate-buffered contact lens multi-purpose solution, Biotrue? multi-purpose solution
Lehmann DM, et al.
Contact Lens & Anterior Eye : the Journal of the British Contact Lens Association, 33, S24-S32 (2010)
Akie Shimotohno et al.
Plant & cell physiology, 56(4), 620-630 (2015-02-12)
Boron, an essential micronutrient, is transported in roots of Arabidopsis thaliana mainly by two different types of transporters, BORs and NIPs (nodulin26-like intrinsic proteins). Both are plasma membrane localized, but have distinct transport properties and patterns of cell type-specific accumulation
Jing Li et al.
American journal of physiology. Cell physiology, 306(10), C943-C960 (2014-03-22)
The human solute carrier (SLC26) family of anion transporters consists of 10 members (SLCA1-11, SLCA10 being a pseudogene) that encode membrane proteins containing ~12 transmembrane (TM) segments with putative N-glycosylation sites (-NXS/T-) in extracellular loops and a COOH-terminal cytosolic STAS
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