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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

Nível de qualidade

200

Agency

suitable for SM 4500 - NH3
suitable for SM 5210

pressão de vapor

2.6 mmHg ( 20 °C)

Ensaio

≥99.5%

Formulário

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

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

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number
0000279532
0000296866
0000274528
0000279173
0000279536

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Sigma-Aldrich

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SAFC

1.00160

Ácido bórico

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Sigma-Aldrich

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Ácido bórico

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Sigma-Aldrich

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Sigma-Aldrich

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Sodium tetraborate decahydrate

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