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1.00335

Hydrofluoric acid

Name: Hydrofluoric acid
Brand: MM

40%, Suprapur^®

Synonym(s):

Hydrofluoric acid, Hydrofluoric acid solution, Fluoric acid, HF

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About This Item

Empirical Formula (Hill Notation):

CAS Number:

7664-39-3

Molecular Weight:

20.01

UNSPSC Code:

12352301

NACRES:

NB.21

MDL number:

MFCD00011346

Assay:

40%

Concentration:

≥30-50% in hydrofluoric acid

Form:

liquid

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Properties

Product Name

Hydrofluoric acid 40%, Suprapur^®

Quality Segment

100

vapor density

1.27 (vs air)

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 (SiF₆^2-): ≤20000 ppb, phosphate (PO₄^3-): ≤100 ppb, sulfate (SO₄^2-): ≤500 ppb, sulfite (SO₃^2-): ≤2000 ppb

SMILES string

F, [H+].[F-]

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

storage temp.

2-30°C

InChI

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

InChI key

KRHYYFGTRYWZRS-UHFFFAOYSA-N

Description

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

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Danger

Hazard Classifications

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

flash_point_f

Not applicable

flash_point_c