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202878

Sigma-Aldrich

Boric acid

99.999% trace metals basis

Synonyma:

orthoboric acid

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About This Item

Lineární vzorec:
H3BO3
Číslo CAS:
10043-35-3
Molekulová hmotnost:
61.83
EC Number:
233-139-2
MDL number:
MFCD00011337
UNSPSC Code:
12352300
PubChem Substance ID:
24852125
NACRES:
NA.23

vapor pressure

2.6 mmHg ( 20 °C)

assay

99.999% trace metals basis

form

crystalline powder

mp

160 °C (dec.) (lit.)

solubility

water: 49.2 g/L at 20 °C

density

1.49 g/cm3 at 23 °C

SMILES string

OB(O)O

InChI

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

InChI key

KGBXLFKZBHKPEV-UHFFFAOYSA-N

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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 can have a large scale use in glass industry as flame retardant, in buffer solutions.
Boric acid finds uses in several areas; such as


  • In glass fibres, to enhance its resistance and color
  • In glazing ceramic wares
  • As a condensing agent, chemical intermediate and as a precursor for preparation of borates and other boron based compounds
  • As a water coolant in nuclear reactors
  • In electrolytic condensers and capacitors 1

Packaging

Packaged in poly bottles

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H360FD

Hazard Classifications

Repr. 1B

Storage Class

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

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Osvědčení o analýze (COA)

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Boric acid NIST® SRM® 951a, isotopic standard

NIST951A

Boric acid

Boric acid powder, EMPROVE® ESSENTIAL, Ph. Eur., BP, JP, NF

SAFC

1.00162

Boric acid

Boric acid ReagentPlus®, ≥99.5%

Sigma-Aldrich

B0252

Boric acid

Boric acid-11B ≥99 atom % 11B

Sigma-Aldrich

426148

Boric acid-11B

Boric acid crystalline, EMPROVE® ESSENTIAL, Ph. Eur., BP, JP, NF

SAFC

1.00160

Boric acid

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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
Hye Ryeo Lee et al.
Journal of chromatography. A, 1346, 117-122 (2014-05-09)
In liquid phase microextraction, high enrichment factors can be obtained using an acceptor phase of small volume. By hanging an acceptor drop at the separation capillary tip, single drop microextraction (SDME) can be in-line coupled with capillary electrophoresis (CE). The
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Oncotarget, 5(18), 8602-8613 (2014-09-28)
The three oncogenes, ErbB receptors, Ras proteins and nucleolin may contribute to malignant transformation. Previously, we demonstrated that nucleolin could bind both Ras protein and ErbB receptors. We also showed that the crosstalk between the three proteins facilitates anchorage independent
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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
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