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Electronic grade hydrofluoric acid

Electronic grade hydrofluoric acid



Molecular formula: HF-H2O

CASNo:  7664-39-3

Division Of Class:  Corrosives presenting acidic properties   Physical and chemical properties: Formula is HF, and molecular  weight is 20.01, it is a kind of colorless and transparent liquid, and  the relative density is around 1.15-1.18. It can have a reaction with  normal metal, metallic oxide and hydroxide, generating all kinds of  salts. With high corrosivity, it can erode glass and silicate,  generating gaseous silicon tetra fluoride.  High purity hydrofluoric  acid can be used as highly acid detergent and corrodent, which can also  be used with nitric acid, glacial acetic acid, hydrogen peroxide and  ammonium hydroxide and etc,with certain proportion. 


Production of organofluorine compounds:

The principal use of hydrofluoric acid is in organofluorine chemistry. Many organofluorine compounds are prepared using HF as the fluorine source, including Teflon, fluoropolymers, fluorocarbons, and refrigerants such as freon. Many pharmaceuticals contain fluorine.


Production of inorganic fluorides:

Most high-volume inorganic fluoride compounds are prepared from hydrofluoric acid. Foremost are Na3AlF6, cryolite, and AlF3, aluminium trifluoride. A molten mixture of these solids serves as a high-temperature solvent for the production of metallic aluminium. Other inorganic fluorides prepared from hydrofluoric acid include sodium fluoride and uranium hexafluoride.




Quality index (Q/KAIHN01-2019):

gradeUP-SUPEL
ITEMUNITindexindexindex
contentASSAY%49%±0.249%±0.249%±0.2
fluosilicic acid(H2SiF6)mg/L≤100≤100≤100
oxide(CL)mg/L≤5≤5≤5
nitrate(NO3)mg/L≤3≤3≤3
phosphate (PO4)mg/L≤1≤1≤1
sulfate and sulfitemg/L≤5≤5≤5
COLORHAZEN≤10≤10≤10
particle (≥1.0μm)Ea/ml≤10≤25≤25
AsPPB≤1≤10≤100
LiPPB≤1≤10≤100
NaPPB≤1≤10≤100
MgPPB≤1≤10≤100
AlPPB≤1≤10≤100
KPPB≤1≤10≤100
CaPPB≤1≤10≤100
CrPPB≤1≤10≤100
FePPB≤1≤10≤100
CoPPB≤1≤10≤100
NiPPB≤1≤10≤100
CuPPB≤1≤10≤100
ZnPPB≤1≤10≤100
GaPPB≤1≤10≤100
MoPPB≤1≤10≤100
AgPPB≤1≤10≤100
CdPPB≤1≤10≤100
SnPPB≤1≤10≤100
BaPPB≤1≤10≤100
PtPPB≤1≤10≤100
AuPPB≤1≤10≤100
MnPPB≤1≤10≤100
PbPPB≤1≤10≤100
TiPPB≤1≤10≤100
BePPB≤1≤10≤100
BPPB≤1≤10≤100
VPPB≤1≤10≤100
GePPB≤1≤10≤100
SrPPB≤1≤10≤100
ZrPPB≤1≤10≤100
BiPPB≤1≤10≤100
SbPPB≤1≤10≤100


Application range:  Hydrofluoric acid can be applied in solar  photovoltaic, LCD, semiconductor industries, mainly playing a role in  surface cleaning of silicon wafer, and cleaning and etching in chip  manufacture process. Besides, it can also be analytical reagent,  industrial chemical reagent in atomic energy and making high purity  chemicals containing fluorine. 


Packing specification: 1000L IBC container; 200L drum, 20L drum, 5L GPB