Reagent Hydrofluoric Acid

Q/DWH003-1999

M.F.: HF

M.W.: 20.01

Properties: clear liquid with strong irritating odor; extremely toxic; rapidly erode silicon containing material, such as glass, porcelain, porcelain enamel, and cement products.

Applications: for use in labs; for the manufacturing of semiconductor parts in electronic industry.

Product Specification:

Item	Value(%)
	premium grade	analytic grade	50% analytic grade	C.P.
HF content	42	40	50	40
chloride (CL)	0.0005	0.002	0.0005	0.005
sulfate (SO4)	0.0005	0.002	0.003	0.005
sulfite (SO3)	0.0005	0.002	0.002	0.002
phosphate (PO4)	0.0001	0.0002	0.0005	0.0005
fluosilicic acid (H2SiF6)	0.005	0.04(SiO2)	0.05	0.06(SiO2)
iron (Fe)	0.00005	0.0001	0.0005	0.0005
nickel (Ni)	0.00001	-	-	-
copper (Cu)	0.00001	-	-	-
zinc (Zn)	0.00001	-	-	-
cadmium (CD)	0.00001	-	-	-
lead (Pd)	0.00005	-	-	-
arsenic (As)	-	-	-	-
heavy metal (in Pb)	-	-	-	-
residue, ignition(in sulfate)	0.0005	0.005	-	0.01

Reagent Ammonium Fluoride

Properties: white crystal or granules; deliquescent; soluble in cold water; slightly soluble in alcohol; dissociate upon heating or in contact with hot water; corrosive to glass; toxic.

Application: as agent for chemical analysis, for example, microanalysis of zirconium; etching on glass; anticorrosion agent, polishing agent, masking agent

Product Quality:

Storage: avoid water vapor; store in tightly sealed vessel