HF

Product name: Electronic grade hydrofluoric acid /HF

Application: Mainly used in IC industry for chip cleaning and corrosion, is essential part in micro electronic technique; also applied in liquid crystal display (TFT-LCD) industry, used for glass substrate, silicon dioxide, silicon dioxide Etching; also used for solar cell industry, silicon surface cleaning, etching.

Packaging specification: 1000L IBC tank container ; 200L barrel; 20L barrel; 5L gallon barrel

Storage: Avoid the impact during transportation, to prevent direct sunlight, stored in a cool, ventilated warehouse, keep the container sealed.

Physical property: colorless transparent liquid, weak acid, strong irritating odor, strong corrosion. The density of 50% hydrofluoric acid is 1.157g / ml, the atmospheric pressure is 107 ℃, freezing point is -46.3 ℃, room temperature specific heat is 3.1J / g. ℃, @18 ℃, the equivalent conductivity is 17.32Ω- 1cm-1. Can react with metal salt, oxide and hydroxide salt and erode glass, silicate to generate SIF4 gas.

Specification:

Grade		UP-S	UP	EL
ITEM	UNIT	Index	Index	Index
ASSAY	%	49%±0.5	49%±0.5	49%±0.5
H2SIF6	mg/l	≤100	≤100	≤100
CL	mg/l	≤5	≤5	≤5
NO3	mg/l	≤3	≤3	≤3
PO4	mg/l	≤1	≤1	≤1
Sulfate and sulfite	mg/l	≤5	≤5	≤5
COLOR	HAZEN	≤10	≤10	≤10
Particle (≥1.0μm)	Ea/ml	≤10	≤10	≤25
Li	PPB	≤1	≤10	≤20
Na	PPB	≤1	≤10	≤100
Mg	PPB	≤1	≤10	≤100
Al	PPB	≤1	≤10	≤100
K	PPB	≤1	≤10	≤100
Ca	PPB	≤1	≤10	≤100
Cr	PPB	≤1	≤10	≤20
Fe	PPB	≤1	≤10	≤100
Co	PPB	≤1	≤10	≤20
Ni	PPB	≤1	≤10	≤50
Cu	PPB	≤1	≤10	≤20
Zn	PPB	≤1	≤10	≤50
Ga	PPB	≤1	≤10	≤20
Mo	PPB	≤1	≤10	≤100
Ag	PPB	≤1	≤10	≤20
Cd	PPB	≤1	≤10	≤50
Sn	PPB	≤1	≤10	≤20
Ba	PPB	≤1	≤10	≤100
Pt	PPB	≤1	≤10	≤100
Au	PPB	≤1	≤10	≤20
Mn	PPB	≤1	≤10	≤20
Pb	PPB	≤1	≤10	≤50
Ti	PPB	≤1	≤10	≤10

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