Electronic grade hydrofluoric acid

Availability: In Stock

Description

Applications:
1.Mainly used as wafer cleaner and etching chemical in IC industries. It is an
indispensable chemical in manufacturing microelectronics.
2.Used as an etching reagent for glass substrate, Si3N4 and SiO2 in TFT-LCD industry.
3.Used as a cleaner and etching reagent in solar cell industry.
4.Reacts with metal salt, oxide, and hydroxide to form fluoride salt, and reacts with
silicate to generate SiF4 gas.

Physicochemical properties:

Molecular Weight 20.01
Boiling Point, ℃ 107
Density(sea level), g/ml 1.157
Freezing Point,℃ -46.3
Equivalent Conductance (18℃)  17.32Ω-1CM-1
Appearance Colorless, Clear
Odor Pungent, Caustic

Quality Standards:

ITEM GRADE
EL grade UP grade UP-S grade UP-SS grade
ASSAY % 49±0.5 49±0.5 49±0.5 49±0.5
Coloration HU ≤10 ≤10 ≤7 ≤7
H2SiF6 w/(mg/kg) ≤50 ≤50 ≤30 ≤30
Cl w/(mg/kg) ≤5 ≤5 ≤0.2 ≤0.05
NO3 w/(mg/kg) ≤3 ≤3 ≤0.1 ≤0.05
PO4 w/(mg/kg) ≤1 ≤1 ≤0.1 ≤0.05
SO4 w/(mg/kg) ≤5 ≤5 ≤0.2 ≤0.05
Al w/(μg/kg) ≤100 ≤10 ≤1 ≤0.1
As w/(μg/kg) ≤200 ≤10 ≤1 ≤0.1
B w/(μg/kg) ≤100 ≤10 ≤1 ≤0.1
Ba w/(μg/kg) ≤100 ≤10 ≤1 ≤0.1
Be w/(μg/kg) ≤20 ≤5 ≤1 ≤0.1
Bi w/(μg/kg) ≤20 ≤5 ≤1 ≤0.1
Cd w/(μg/kg) ≤50 ≤10 ≤1 ≤0.1
Ca w/(μg/kg) ≤100 ≤10 ≤1 ≤0.1
Cr w/(μg/kg) ≤20 ≤10 ≤1 ≤0.1
Co w/(μg/kg) ≤20 ≤10 ≤1 ≤0.1
Cu w/(μg/kg) ≤20 ≤10 ≤1 ≤0.1
Ga w/(μg/kg) ≤20 ≤10 ≤1 ≤0.1
Ge w/(μg/kg) ≤20 ≤10 ≤1 ≤0.1
Au w/(μg/kg) ≤20 ≤5 ≤1 ≤0.1
Fe w/(μg/kg) ≤100 ≤10 ≤1 ≤0.1
Pb w/(μg/kg) ≤50 ≤10 ≤1 ≤0.1
Ti w/(μg/kg) ≤100 ≤10 ≤1 ≤0.1
Sb w/(μg/kg) ≤50 ≤10 ≤1 ≤0.1
Li w/(μg/kg) ≤20 ≤5 ≤1 ≤0.1
Mg w/(μg/kg) ≤100 ≤10 ≤1 ≤0.1
Mn w/(μg/kg) ≤50 ≤10 ≤1 ≤0.1
Mo w/(μg/kg) ≤100 ≤10 ≤1 ≤0.1
Ni w/(μg/kg) ≤50 ≤10 ≤1 ≤0.1
K w/(μg/kg) ≤100 ≤10 ≤1 ≤0.1
Ag w/(μg/kg) ≤20 ≤5 ≤1 ≤0.1
Na w/(μg/kg) ≤100 ≤10 ≤1 ≤0.1
Pt w/(μg/kg) ≤100 ≤10 ≤1 ≤0.1
Sr w/(μg/kg) / ≤10 ≤1 ≤0.1
Tl w/(μg/kg) / ≤10 ≤1 ≤0.1
Sn w/(μg/kg) ≤20 ≤10 ≤1 ≤0.1
V w/(μg/kg) / ≤10 ≤1 ≤0.1
Zn w/(μg/kg) ≤50 ≤10 ≤10 ≤10
Particalsize≥1.0μmEa/ml ≤25 / / /
Particalsize≥0.5μmEa/ml / ≤25 ≤5 /
Particalsize≥0.2μmEa/ml / / / ≤20

Packaging: 1 gallon barrel; 20L barrel; 200L barrel; 1000L IBC.

Storage: Avoid sunshine and keep in well-ventilated places.

 

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