Industrial
Fluosilicic Acid Other
Names: hydrofluosilicic acid, hydrosilicofluoric acid, silicofluoric
acid
M.F.:
H2SiF6
M.W.:
144.08
Properties:
clear liquid; it is ca. 30% aqueous solution of silicon hydrogen
fluoride; hydrochloric acid odor; strong acid; irritating; mix arbitrarily
with water; dissociate into volatile silicon tetrafluoride and hydrogen
fluoride upon boiling; corrosive to glass and ceramics; strongly
erosive to skin and mucous membrane; specific density at 1.32; B.P.
at 108.5.
Applications:
for the production of fluosilicates and silicon tetrafluoride; as
antiseptic for industrial equipment; also for treatment of porcelain,
or as hardener for cement.
Product
Quality:
concentration
%40
free
acid (HF)% 1
Storage:
25kg in plastic barrel; tightly sealed; avoid exposure to light;
Hazard:
grade 2 corrosive inorganic acid; hazard No.: 93008
Industrial
Ammonium Fluosilicate
Other
Name: ammonium silicofluoride
M.F.:
(NH4)2SiF6
Properties:
white crystal; can be type
or type ; type
is in cubic system, density at 2.011g/cm3; type
is in triclinic system, density at 2.152g/cm3; soluble
in alcohol and water; insoluble in acetone; stable in air; prolonged
heating will convert type
to type .
Applications:
as disinfectant in brewing industry; for etching on glass; antiseptic
for timber; for the production of cryolite etc.; for extraction
of potassium from green sand; as fusing agent for welding etc.
Product
Quality:
purity(%)98
fluosilicic
acid(%)0.3
sulfate(%)0.6
water
insoluble(%)0.5
Storage:
tightly sealed in plastic inner bag and knitted outer bag.
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