Potassium fluoride,anhydrous
           Potassium fluoride,extra pure
           Potassium fluoride,Granular
           Silicon Dioxide
           Hydrofluoric acid
           Synthetic Cryolite
           Potassium Fluoaluminate
           Ammonium bifluoride
           Potassium Bifluoride
           Aluminium fluoride
           Sodium fluoride
           Potassium Fluorosilicate
           Fluorosilicic Acid
           Sodium silicofluoride
           Potassium Hydroxide Flakes
           Magnesium Fluoride
           Magnesium fluorosilicate
           Barium Fluoride
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By Business community June 23 hearing: Hydrofluoric acid and R22 Goods parity index June 22 to 114.93, down by 1.99 points compared with yesterday. The highest point in the cycle compared with 140.86 points (2013-01-31) decreased by 18.41% compared to February 5, 2015 the lowest point 79.81 points, up 44.00 percent. (Note: refers to the period since 2012-01-01)

According to the business community data, the reference price of 6540.00 that day hydrofluoric acid, starting from 2016-1-18, 157 days after another rose 9.703 percent. R22 day downstream commodity reference the price is 9777.78.

Note: The business community is defined, based on a given parity index indexation results downstream commodity daily price ratio for the cycle.

Hydrofluoric acid is a toxic substance used widely in both industrial and domestic settings. It can cause severe burns, as well as systemic toxicity. Death has been reported from as little as 2.5% body surface area (BSA) burn involving concentrated acid. Topical and parenteral calcium salts have proven effective therapy for both dermal and systemic manifestations. All emergency physicians should be aware of the unique complications and treatment of these injuries.

Inhibitors for low alloyed chromium steels in hydrofluoric acid solutions: Some classes of organic substances were tested as inhibitors for 3% HF attack on low alloyed chromium steels (ASTM A335 type steels containing 1·35?10%Cr). Only sulphur containing additives (phenylthiourea, dibenzylsulphoxide, etc.) showed inhibiting efficiency values of ~99% at both 45 and 60°C regardless of steel chromium content. These additives act by inhibiting both the anodic and the cathodic processes. Alloyed chromium hinders the diffusion of atomic hydrogen into the iron lattice (hydrogen permeation), which is also influenced by sulphur containing additives. Phenylthiourea increased both the diffusivity and the permeability of hydrogen, while dibenzylsulphoxide decreased both.