Skip to Content
Merck

Key Documents

View All Documentation

B0394

Boric acid

ACS reagent, ≥99.5%

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
H3BO3
CAS Number:
10043-35-3
Molecular Weight:
61.83
PubChem Substance ID:
329773111
eCl@ss:
38120104
UNSPSC Code:
12352106
NACRES:
NA.21
EC Number:
233-139-2
MDL number:
MFCD00011337
Assay:
≥99.5%
Concentration:
>99.5%
Form:
powder
Grade:
ACS reagent
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

grade

ACS reagent

Quality Level

200

agency

suitable for SM 4500 - NH3, suitable for SM 5210

vapor pressure

2.6 mmHg ( 20 °C)

assay

≥99.5%

form

powder

concentration

>99.5%

technique(s)

PCR: suitable

impurities

≤0.005% Insoluble in methanol, ≤0.05% Nonvolatile with methanol

pH

5.1 (25 °C, 1.8 g/L)

mp

160 °C (dec.) (lit.)

solubility

water: soluble

density

1.440 g/cm3

anion traces

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

cation traces

Ca: ≤0.005%, Fe: ≤0.001%, heavy metals: ≤0.001% (by ICP)

SMILES string

OB(O)O

InChI

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

InChI key

KGBXLFKZBHKPEV-UHFFFAOYSA-N

General description

Boric acid is a weak monobasic Lewis acid(electron pair acceptor), which finds application in the areas of glass making, fire retardant, lubrication agent, buffer, and neutron absorber.

Application

Boric acid can be used as a catalyst to synthesize:
  • N-substituted cinnamamides via amidation reaction between cinnamic acid and benzylamines.
  • β-Aminoalcohols through the regioselective epoxides ring opening with aromatic amines in the presence of glycerol as a co-catalyst.
  • Organosulfur compounds via thia-Michael addition of thiols to α, β-unsaturated compounds.
It can also be used as an activator for the solvent-free reduction of aldehydes and ketones to alcohols in the presence of sodium borohydride.

Still not finding the right product?

Explore all of our products under Boric acid

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

10043-35-3

CAS No.

10043-35-3

CAS No.

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000552143
0000550550
0000548910
0000548909
0000548907

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Debin Wang et al.
ACS nano, 8(8), 7896-7904 (2014-07-16)
Building plasmonic nanostructures using biomolecules as scaffolds has shown great potential for attaining tunable light absorption and emission via precise spatial organization of optical species and antennae. Here we report bottom-up assembly of hierarchical plasmonic nanostructures using DNA origami templates
Albert Serrà et al.
ACS nano, 8(5), 4630-4639 (2014-05-03)
Electrodeposition from microemulsions using ionic liquids is revealed as a green method for synthesizing magnetic alloyed nanoparticles, avoiding the use of aggressive reducing agents. Microemulsions containing droplets of aqueous solution (electrolytic solution containing Pt(IV) and Co(II) ions) in an ionic
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
View All Related Papers