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B0394

Sigma-Aldrich

Ácido bórico

ACS reagent, ≥99.5%

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About This Item

Fórmula linear:
H3BO3
Número CAS:
10043-35-3
Peso molecular:
61.83
Número CE:
233-139-2
Número MDL:
MFCD00011337
Código UNSPSC:
12352106
eCl@ss:
38120104
ID de substância PubChem:
329773111
NACRES:
NA.21

grau

ACS reagent

Agency

suitable for SM 4500 - NH3
suitable for SM 5210

pressão de vapor

2.6 mmHg ( 20 °C)

Ensaio

≥99.5%

forma

powder

técnica(s)

PCR: suitable

Impurezas

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

pf

160 °C (dec.) (lit.)

solubilidade

water: soluble

densidade

1.440 g/cm3

traços de ânion

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

traços de cátion

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

cadeia de caracteres SMILES

OB(O)O

InChI

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

chave InChI

KGBXLFKZBHKPEV-UHFFFAOYSA-N

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Descrição geral

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.

Aplicação

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.

Pictogramas

Health hazard
GHS08

Palavra indicadora

Danger

Frases de perigo

H360FD

Classificações de perigo

Repr. 1B

Código de classe de armazenamento

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

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Certificados de análise (COA)

Busque Certificados de análise (COA) digitando o Número do Lote do produto. Os números de lote e remessa podem ser encontrados no rótulo de um produto após a palavra “Lot” ou “Batch”.

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Ácido bórico

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SAFC

1.00160

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Sigma-Aldrich

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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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