Аммоний бифторид NH4HF2 1341-49-

Ammonium Bifluoride 98% 1341-49-7 Molecular formula: NH4HF2 Molecular weight: 57.041) Fluorinated series 2) Sodium fluoride 3) ammonium fluoride 4) ammonium bifluori5)magnesium fluorideProperties: it is a white orthorhombic crystal with specific gravity of 1.52, melting point 124.6 and boiling point 239.5. it is easily deliquescent and agglomerative in the air. It is souble in water and the solution is acidic. The solubility in water in water is 63g/100ml(20). It etches glass. It is slightly souble in alcohol, can be decomposed in hot water and the solution appears to be strong acidic. It can sublimate in high temperature. It will corrupt skin and it is toxic when you touch it!Ececute standard: HG/T3586-1999Spec. parameter data Super grade First grade Ammonium bifluoride(NH4HF2) (base on dry basis)% ≥ 98.0 97.0 95.0 Content of ammonium fluosilicate [(NH4)SiF6] %≤ 0.5 2.0 4.0 Sulfate(base on SO4) content% ≤ 0.1 0.1 0.1 Content of residue on ignition%≤ 0.02 0.2 0.2 loss on drying %<= 2.0 3.0 5.0 Packing Plastic woven bag lined with high-pressure polythene plastic bag, net weight 25 kg Usages: it is used as glass etchant, antiseptic, disinfector, analytical reagent, the solvent in beryllia producing beryllium metal and the treatment of the surface of silicon steel plate. It is also used as the oxidant in producing pottery and aluminum magnesium alloy, the cleaning agent of boiler water-supply system and evaporator system, the acidification treatment of sand in oil field, the fluorination reagent in organic synthesis and the extraction of rare element.5)