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1.00335

Supelco

Hydrofluoric acid

40%, Suprapur®

Synonym(s):

Hydrofluoric acid, Hydrofluoric acid solution, Fluoric acid, HF

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250 ML
$87.50
500 ML
$131.00
1 L
$219.00
2.5 L
$349.00

$87.50


Estimated to ship onOctober 02, 2025


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250 ML
$87.50
500 ML
$131.00
1 L
$219.00
2.5 L
$349.00

About This Item

Empirical Formula (Hill Notation):
HF
CAS Number:
Molecular Weight:
20.01
MDL number:
UNSPSC Code:
12352301
NACRES:
NB.21

$87.50


Estimated to ship onOctober 02, 2025


Request a Bulk Order

Product Name

Hydrofluoric acid 40%, Suprapur®

vapor density

1.27 (vs air)

Quality Level

vapor pressure

25 mmHg ( 20 °C)

description

for inorganic trace analysis

assay

40%

form

liquid

concentration

≥30-50% in hydrofluoric acid

pH

(at 20 °C (68 °F)strongly acid)

bp

112 °C/1013 hPa

mp

-44 °C

solubility

soluble (Water: Soluble)

density

1.13 g/cm3 at 20 °C
1.15 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤500 ppb
hexafluorosilicate (SiF62-): ≤20000 ppb
phosphate (PO43-): ≤100 ppb
sulfate (SO42-): ≤500 ppb
sulfite (SO32-): ≤2000 ppb

cation traces

Ag: ≤ 0.5  ppb
Al: ≤2 ppb
As: ≤5 ppb
Au: ≤0.2 ppb
Ba: ≤1 ppb
Be: ≤0.2 ppb
Bi: ≤0.2 ppb
Ca: ≤5 ppb
Cd: ≤0.5 ppb
Co: ≤0.2 ppb
Cr: ≤1 ppb
Cu: ≤1 ppb
Fe: ≤5 ppb
Ga: ≤0.2 ppb
Ge: ≤1 ppb
Hg: ≤20 ppb
In: ≤0.2 ppb
K: ≤10 ppb
Li: ≤2.0 ppb
Mg: ≤2 ppb
Mn: ≤2 ppb
Mo: ≤0.2 ppb
Na: ≤2 ppb
Ni: ≤0.5 ppb
Pb: ≤0.5 ppb
Pd: ≤0.2 ppb
Pt: ≤0.2 ppb
Sb: ≤0.2 ppb
Sn: ≤0.5 ppb
Sr: ≤0.2 ppb
Ti: ≤5 ppb
Tl: ≤0.2 ppb
U: ≤0.1 ppb
V: ≤0.2 ppb
Zn: ≤2 ppb
Zr: ≤0.2 ppb

SMILES string

F
[H+].[F-]

storage temp.

2-30°C

InChI

InChI=1S/FH/h1H
1S/FH/h1H

InChI key

KRHYYFGTRYWZRS-UHFFFAOYSA-N
KRHYYFGTRYWZRS-UHFFFAOYSA-N

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1 of 4

This Item
1.003381.003371.01513
concentration

≥30-50% in hydrofluoric acid

concentration

40.0-42.0% Hf

concentration

38-40% Hf

concentration

-

grade

for inorganic trace analysis

grade

-

grade

-

grade

for inorganic trace analysis

assay

40%

assay

-

assay

-

assay

48%

Quality Level

100

Quality Level

300

Quality Level

200

Quality Level

100

form

liquid

form

liquid

form

liquid

form

liquid

pH

(at 20 °C (68 °F)strongly acid)

pH

-

pH

2 (20 °C in H2O)

pH

2 (20 °C in H2O)

Analysis Note

Assay (acidimetric): ≥ 40 %


Colour: ≤ 10 Hazen


Chloride (Cl): ≤ 500 ppb


Hexafluorosilicate (SiF₆): ≤ 20000 ppb


Phosphate (PO₄): ≤ 100 ppb


Sulphate (SO₄): ≤ 500 ppb


Sulfite (SO₃): ≤ 2000 ppb


Ag (Silver): ≤ 0.5 ppb


Al (Aluminium): ≤ 2 ppb


As (Arsenic): ≤ 5 ppb


Au (Gold): ≤ 0.2 ppb


Ba (Barium): ≤ 1 ppb


Be (Beryllium): ≤ 0.2 ppb


Bi (Bismuth): ≤ 0.2 ppb


Ca (Calcium): ≤ 5 ppb


Cd (Cadmium): ≤ 0.5 ppb


Co (Cobalt): ≤ 0.2 ppb


Cr (Chromium): ≤ 1 ppb


Cu (Copper): ≤ 1 ppb


Fe (Iron): ≤ 5 ppb


Ga (Gallium): ≤ 0.2 ppb


Ge (Germanium): ≤ 1 ppb


Hg (Mercury): ≤ 20 ppb


In (Indium): ≤ 0.2 ppb


K (Potassium): ≤ 10 ppb


Li (Lithium): ≤ 2.0 ppb


Mg (Magnesium): ≤ 2 ppb


Mn (Manganese): ≤ 2 ppb


Mo (Molybdenum): ≤ 0.2 ppb


Na (Sodium): ≤ 2 ppb


Ni (Nickel): ≤ 0.5 ppb


Pb (Lead): ≤ 0.5 ppb


Pd (Palladium): ≤ 0.2 ppb


Pt (Platinum): ≤ 0.2 ppb


Sb (Antimony): ≤ 0.2 ppb


Sn (Tin): ≤ 0.5 ppb


Sr (Strontium): ≤ 0.2 ppb


Ti (Titanium): ≤ 5 ppb


Tl (Thallium): ≤ 0.2 ppb


U (Uranium): ≤ 0.1 ppb


V (Vanadium): ≤ 0.2 ppb


Zn (Zinc): ≤ 2 ppb


Zr (Zirconium): ≤ 0.2 ppb


Residue on ignition (as sulphate): ≤ 2000 ppb


Actual Analysis Values are subject to unavoidable systematic variations in this concentration range

Legal Information

SUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

CorrosionSkull and crossbones

signalword

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Eye Dam. 1 - Skin Corr. 1A

Storage Class

6.1B - Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Questions

1–2 of 2 Questions  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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