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207934

Sigma-Aldrich

Tetrafluoroboric acid solution

48 wt. % in H2O

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Linear Formula:
HBF4
CAS Number:
Molecular Weight:
87.81
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor density

3 (vs air)

Quality Level

vapor pressure

5 mmHg ( 20 °C)

form

liquid

concentration

46.0-52.0% in NaOH (titration)
48 wt. % in H2O

density

1.4 g/mL at 25 °C

SMILES string

F.FB(F)F

InChI

1S/BF3.FH/c2-1(3)4;/h;1H

InChI key

LEMQFBIYMVUIIG-UHFFFAOYSA-N

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1 of 4

This Item
339261177806B1252
Tetrafluoroboric acid solution 48 wt. % in H2O

207934

Tetrafluoroboric acid solution

Hydrofluoric acid 48 wt. % in H2O, ≥99.99% trace metals basis

339261

Hydrofluoric acid

Boron trifluoride-methanol solution 14% in methanol

B1252

Boron trifluoride-methanol solution

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

-

form

liquid

form

liquid

form

liquid

form

liquid

vapor pressure

5 mmHg ( 20 °C)

vapor pressure

25 mmHg ( 20 °C)

vapor pressure

-

vapor pressure

-

density

1.4 g/mL at 25 °C

density

1.15 g/mL at 25 °C (lit.)

density

1.01 g/mL at 25 °C

density

0.859 g/mL at 25 °C

vapor density

3 (vs air)

vapor density

1.27 (vs air)

vapor density

-

vapor density

-

General description

Tetrafluoroboric acid is used as a catalyst for the protection and deprotection reactions of various carbohydrates. It participates in the synthesis of 4-sulfonic acid phenyl diazonium tetrafluoroborate, which was required for the preparation of sulfonated graphene (SG).

Application

Tetrafluoroboric acid solution may be used as a catalyst for the hydration of aromatic haloalkynes to α-halomethyl ketones in the absence of metal catalysts. It may also be used the epoxidized soybean oil (ESBO) ring opening step of fatty acids preparation.

pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class

8B - Non-combustible, corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Customers Also Viewed

Slide 1 of 3

1 of 3

Polyols and polyurethanes prepared from epoxidized soybean oil ring-opened by polyhydroxy fatty acids with varying OH numbers.
Chen R, et al.
Journal of Applied Polymer Science, 132(1) (2015)
Tetrafluoroboric acid, an efficient catalyst in carbohydrate protection and deprotection reactions.
Albert R, et al.
Carbohydrate Research, 137, 282-290 (1985)
Gary A Molander et al.
Organic letters, 12(21), 4876-4879 (2010-10-01)
Amidomethyltrifluoroborates were successfully synthesized in a one-pot fashion and used in cross-coupling reactions with a wide variety of aryl and heteroaryl chlorides.
Dong-Su Kim et al.
Organic letters, 12(5), 1092-1095 (2010-02-13)
A novel series of alkyne-containing potassium organotrifluoroborates were prepared in good yields from the corresponding haloaryltrifluoroborates and various alkynes via Sonogashira coupling reaction. Also, the Suzuki-Miyaura cross-coupling reaction of alkynylaryltrifluoroborates with aryl and alkenyl bromides was achieved in the presence
Arnis Abolins et al.
Materials (Basel, Switzerland), 14(4) (2021-03-07)
A second-generation bio-based feedstock-tall oil fatty acids-was epoxidised via two pathways. Oxirane rings were introduced into the fatty acid carbon backbone using a heterogeneous epoxidation catalyst-ion exchange resin Amberlite IR-120 H or enzyme catalyst Candida antarctica lipase B under the

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