Merck
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B6768

Sigma-Aldrich

Boric acid

BioReagent, for molecular biology, suitable for cell culture, suitable for plant cell culture, ≥99.5%

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Linear Formula:
H3BO3
CAS Number:
Molecular Weight:
61.83
EC Number:
MDL number:
eCl@ss:
38120104
PubChem Substance ID:
NACRES:
NA.25

grade

for molecular biology

Quality Level

vapor pressure

2.6 mmHg ( 20 °C)

product line

BioReagent

Assay

≥99.5%

form

powder

technique(s)

cell culture | mammalian: suitable
cell culture | plant: suitable

pH

5.1 (25 °C, 1.8 g/L)

mp

160 °C (dec.) (lit.)

solubility

water: 40 mg/mL, clear, colorless

density

1.49 g/cm3 at 23 °C

cation traces

Fe: ≤5 ppm
Mg: ≤5 ppm
heavy metals (as Pb): ≤10 ppm

UV absorption

λ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.05

foreign activity

DNase, RNase, and protease, none detected

storage temp.

room temp

SMILES string

OB(O)O

InChI

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

InChI key

KGBXLFKZBHKPEV-UHFFFAOYSA-N

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1 of 4

This Item
B7901B025231146
Boric acid BioReagent, for molecular biology, suitable for cell culture, suitable for plant cell culture, ≥99.5%

Sigma-Aldrich

B6768

Boric acid

Essential+ Grade
Boric acid suitable for electrophoresis, ≥99.5%

Sigma-Aldrich

B7901

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

-
vapor pressure

2.6 mmHg ( 20 °C)

vapor pressure

2.6 mmHg ( 20 °C)

vapor pressure

2.6 mmHg ( 20 °C)

vapor pressure

2.6 mmHg ( 20 °C)

assay

≥99.5%

assay

≥99.5%

assay

≥99.5%

assay

≥99.8%

form

powder

form

powder

form

powder

form

powder or crystals

pH

5.1 (25 °C, 1.8 g/L)

pH

8.2-10.1

pH

-

pH

3.6-4.0 (20 °C, 4%)

mp

160 °C (dec.) (lit.)

mp

160 °C (dec.) (lit.)

mp

160 °C (dec.) (lit.)

mp

160 °C (dec.) (lit.)

General description

Boric acid is a weak monobasic Lewis acid (electron pair acceptor), which reacts reversibly with alcohols. It is used in dermal and women′s hygiene products due to its mild antibacterial and antifungal effects. Boric acid is used as a buffer in ophthalmic products. It acts as an effective solid lubrication agent because of its molecular structure. Boric acid finds its applications in glass making, fire retardant. Boric acid is used in biochemistry in buffer solutions. It also forms complex equilibria in solution, with the tetraborate ion (B4O7 2- ) being the predominant species. Borate buffers are involved in discontinuous electrophoresis and capillary electrophoresis systems for the separation of proteins and nucleic acids.

Application

Boric acid has been used:
  • to prepare boric buffer for the quantification of primary amine groups at the surface of nanocapsules
  • to study its effects on epigenetic change
  • for the estimation of protein in wheatgrass using Kjeldahl method

Used to promote amidations of carboxylic acids and amines in catalytic amounts. This technology avoids the requirement of preactivation of the carboxylic acid or use of coupling reagents.
Intensified Azeotropic Distillation: A Strategy for Optimizing Direct Amidation

Features and Benefits

  • Environment-friendly
  • Non-toxic 

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

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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25G
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Calvin S Carter et al.
Cell metabolism, 32(4), 561-574 (2020-10-08)
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Absolute quantification of intracellular metabolite pools is a prerequisite for modeling and in-depth biological interpretation of metabolomics data. It is the final step of an elaborate metabolomics workflow, with challenges associated with all steps-from sampling to quantifying the physicochemically diverse
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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