HYDROFLORIC ACID CHINA
1.15 g / ml (48%)
R26 / 27/28, R35
(S1 / 2), S7 / 9, S26, S36 / 37, S45
Although the chemical formula is a weak acid type of HF, the effects are very strong. Because they have a corrosive effect, they cannot be stored in glass bottles. They should only be stored in low density poly ethylene plastic containers. Anhydrous hydrogen fluoride is a fluid, colorless, clear and high temperature stable liquid. Because it is an extremely small molecule and a special acid, it can dissolve almost everything. As a result of contact with the body does not give a feeling of pain, the body absorbed into the bones can be absorbed.
Production and Reactions
Hydrogen fluoride is obtained in the industry by treating a large amount of calcium fluoride with sulfuric acid.
They are used by reaction with silicon dioxide to form gas or water soluble silicon fluorides in glass etching processes.
SiO2 4 HF SiF4 (g) 2 H2OSiO2 6 HF? H2SIF6 2 H2O
Suitable use is provided by alkylating with low molecular weight alkenes in the presence of a strong acid catalyst derived from isobutane hydrofluoric acid, known as alkylation in petroleum refining.
Hydrofluoric acid is used in the production of high octane gasoline.
Because of its ability to dissolve silicate compounds for mineral and rock analysis in this sector, it is used to melt rock samples.
It is used in the glass sector by shaping the glass and making use of its shaping.
Thanks to its fluoride structure, it is used as a fluorine source in the production of fluoroorganic compounds in this sector.