AMMONIUM Bifluoride Crystal
Ammonium Bifluoride is a white crystalline solid. It is soluble in water. It is noncombustible. It is corrosive to aluminum. It is used in chemical analysis, in brewing, and as a preservative for wood.
CAS Number: 1341-49-7
UN number: 1727
Boiling point: 240 °C (464 °F; 513 K)
EC Number: 215-676-4
Molecular Weight: 57.04 g/mol
Molecular Formula: NH4HF2
Ammonium bifluoride [NH4.HF2]
Melting point :124.6°C (Sublimes at higher temperature)
Boiling point : 239.5°C
When dissolved in water, cooling takes place. Material is Hygroscopic at 50% humidity.
Analysis
Appearance : White crystalline solid (Orthorhombic crystals)
NH4HF2 : 98.76%*
(NH4)2SO4 : 0.05%
(NH4)2SiF6 :0.20%
Moisture :0.59%
Solubility in water : 60.2 g at 20°C and 156.4g at 60°C per 100ml of water
Solubility in HCl : 10% (w/v) sample is soluble in 15% (w/w) of HCl at 25°C
*Assay: Weigh accurately about 1.0gm of Ammonium bi fluoride sample. Dissolve it in 100ml distilled water. Titrate with about 1N NaOH. Use Phenolphthalein as indicator. End point is Colourless to Pink.
% acidity as HF = A / B
1st calculate Consumption of NaOH, B.R. X Normality of NaOH X 0.02 X 100 = A
Then Divided the result with " Weight of the sample " = B
%NH4HF= %acidityasHFx57 / 20
Ammonium Bifluoride successfully replaces the traditional, but a dangerous and aggressive material - hydrofluoric acid, which is very aggressive, corrodes many materials, causing severe burns, releases harmful to breathe fumes. Ammonium bifluoride use instead of hydrofluoric acid is safer for use, storage and transportation and is less harmful, and reduce your costs by 10 - 15%.
Glazier:
Matt drawing on glass can be obtained chemically. For this glass coated with a thin layer of wax. Prepared in advance figure is placed on the reverse side of the glass to the light, and the blunt end of the needle scratched necessary in paraffin sections. Then, using clay to make the glass cell and poured back etching solutions based on ammonium bifluoride.
Ammonium bifluoride use instead of hydrofluoric acid greatly simplifies the processing of glass, making it safer and less harmful, and reduce your costs by 10 - 15%.
Petroleum:
In oil extraction method has been successfully applied acidizing bottom-hole, you can restore and improve the filtration characteristics, dissolve and loosen deposits in the well and increase the permeability layer zones and thus debit wells.
Usually for cooking acidic mixture used technical Hydrofluoric acid. When you replace it on ammonium bifluoride savings of 10-15%. For comparison, if the acid used in the working mixture of hydrofluoric acid (45%), it would take 1.55 times more than if we use a dry ammonium bifluoride.
Dosage
Etching and engraving glass
For chemical glass matting
Cleaning boilers and pipes from rust
As a substitute for hydrofluoric acid
Wash oil pipelines
To dissolve deposits in the wells
Bottomhole treatment
Useful Area
Ammonium bifluoride
Other Name :
(Ammonium hydrogen fluoride, Acid ammonium fluoride, Ammonium hydrogen difluoride )
As an additive to sand in the process of casting magnesium and magnesium alloys, mordant for aluminium, Aluminium anodizing (Metal labels).
Ammonium bifluoride also used for brightening of aluminium, purifying & cleansing beer dispensing apparatus, tube, sterilizing dairy & other food equipment, Glass and electric lamp bulb industry.
Ammonium bifluoride also used as an ingredient of the etching mixture (Glass Frosting), porcelain industries.
Ammonium bifluoride for the removal of iron stains (laundry sour).
Ammonium bifluoride lab production of HF. Bactericide in sugar industry for checking the invisible loss of sugar due to bacteria.
Ammonium bifluoride used as Silica scale removal in boilers & evaporators.
Wood preservatives. In Electroplating Industries for pickling of metals (e.g. Steel sheet prior to Nickel plating, Zinc prior to Copper plating), In nuclear chemistry for the separation of Uranium from Iron, Vanadium, Beryllium and Zirconium.
Industrial Usage
RXSOL Fluoride, are counted amongst the leading manufacturer, supplier, wholesaler and exporter of Fluoride Chemicals, Cryolite Chemicals and Fluoborate Chemicals. These products are recognised for their accurate composition.
We are manufacturer, supplier, wholesaler and exporter of Sulphate Chemical, Lithium Chloride and Potassium Metaborate. All these products are processed with top-grade ingredients in order to ensure their compliance with the international quality standards. These products are highly acclaimed by our most valued clients for their excellent finish, unique formulation, purity, longer shelf life and perfect finish. Owing their numerous other features, these products are highly valuable for pharmaceutical, chemical and bio-technology industries.
Remarks
Ammonium bifluoride is a white crystal salt chemically when ammonium bifluoride comes in contact with water resulting with the formation of HF. It is used to brighten aluminum and other metals.
Supply Locations
Ammonium Bifluoride Technical Grade ABF dealer, supplier in Mumbai, Kandla, Chennai, Kolkata, Visakhapatnam, Dubai, Sharjah, Abudhabi, Fujairah, Muscat Barka, Sohar, Oman, UAE Middle East, Canada
Difference between HF and ABF uses.
HF 70% acid Handling is very dificult also makes hole in glove finger tips. While ABF never had a burn with solid ABF, however avoid to use by bare hands. If comes in contace quickly rinse with free flowing water. Always handle ABF with care and wear eye and skin glove protection during mixing or using, and never handle ABF with your bare hands.
Handling Procedure of ABF and HF
Calcium gluconate gel is helpfull cream to protect from HF / ABF burns to the skin. On contact immediately flush the contact part with cupious amount of water and applying calcium gluconate gel followed by immediate medical attention.
USES of ABF :
As a Aluminum brightener use 28% (wt) ammonium bifluoride to 72% (wt) water.
To Etch Glass use 1 Kilo ammonium bifluoride and 2 liters sulfuric acid in 3 gallons water bath.