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207934

Sigma-Aldrich

Tetrafluoroboric acid solution

48 wt. % in H2O

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About This Item

Linear Formula:
HBF4
CAS Number:
16872-11-0
Molecular Weight:
87.81
MDL number:
MFCD00011345
UNSPSC Code:
12352106
PubChem Substance ID:
329752030
NACRES:
NA.21
Pricing and availability is not currently available.

vapor density

3 (vs air)

Quality Level

200

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
339261200956372757
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

Hexafluorophosphoric acid solution ~55 wt. % in H2O

200956

Hexafluorophosphoric acid solution

Fluorosilicic acid solution 20-25 wt. % in H2O

372757

Fluorosilicic acid solution

concentration

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

concentration

48 wt. % in H2O

concentration

~55 wt. % in H2O

concentration

20-25 wt. % in H2O

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

-

form

liquid

form

liquid

form

liquid

form

liquid

vapor density

3 (vs air)

vapor density

1.27 (vs air)

vapor density

-

vapor density

-

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

1.651 g/mL at 25 °C

density

1.22 g/mL at 25 °C

General description

Tetrafluoroboric acid is used as a catalyst for the protection and deprotection reactions of various carbohydrates.[1] It participates in the synthesis of 4-sulfonic acid phenyl diazonium tetrafluoroborate, which was required for the preparation of sulfonated graphene (SG).[2]

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.[3] It may also be used the epoxidized soybean oil (ESBO) ring opening step of fatty acids preparation.[4]

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

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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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ5261
MKCP3401
MKCN6072
MKCL9953
MKCK1601

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Self-assembling sulfonated graphene/polyaniline nanocomposite paper for high performance supercapacitor.
Fan T, et al.
Synthetic Metals, 199, 79-86 (2015)
Tetrafluoroboric acid, an efficient catalyst in carbohydrate protection and deprotection reactions.
Albert R, et al.
Carbohydrate Research, 137, 282-290 (1985)
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)
Metal-free hydration of aromatic haloalkynes to a-halomethyl ketones.
Ye M, et al.
Tetrahedron Letters, 57(45), 4983-4986 (2016)
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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