Physical And Chemical Properties
The pH of a 5% aqueous solution of Ammonium Bifluoride is 3.5. In aqueous solution it releases 0.35 pounds of hydrofluoric acid per pound of Ammonium Bifluoride. In strong acid solutions, Ammonium Bifluoride releases 0.70 pounds of hydrofluoric acid per pound. Since the product absorbs heat when aqueous solutions are prepared, it is often advisable to use warm water. Additional properties are listed below.
Melting Point: 258 F (126 C)
Boiling Point: 462 F (239 C)
Specific Gravity: 1.5
Solubility in Water (25C): 41.5% by weight
Sales Specification
Content(NH4HF2): 98.0% min
(NH4)2SiF6: 2.0% max
Loss on drying: 1.0% max
Residue on ignition: 0.2% max
Sulfate (based on SO4): 0.1% max
Packing
50 LB Bag, 44 bags per pallet
DOT Transportation
UN Number.: 1727
Proper Shipping Name: Ammonium Bifluoride, Solid
Hazard Class: 8
Packing Group: II
Ammonium BiFluoride (ABF), also known as Ammonium Hydrogen Difluoride, is an inorganic compound with the chemical formula NHâ??HFâ?? and a molecular weight of 57.04 g/mol. It appears as a white crystalline solid or powder. ABF is highly soluble in water and has a pungent odor. It is corrosive and reactive with many substances.
Index Name
Index
Superior Grade
First Grade
Purity as(NH4HF2),%
97.00
95.00
Dried Weightlessness,%
3.00
5.00
Ignition Residue Content,%
0.20
0.20
Sulphate(SO4)Content,%
0.10
0.10
Ammonium Fluorosilicate[(NH4)2SiF6]Content,%
2.00
4.00
Properties: The product is a white powdery crystal. It can deliquesce easily and dissolve easily in water. It can dissolve in alcohol slightly. It can be resolved when it is affected by the heat or it is in hot water. It can corrode glass. It's poisonous.
Application: The product can be used for glass frosting or extracting rare elements and used as a preservative or a mordant.
Storage: Moisture-proof and sealed preservation is needed.
Transport: It should be treated as inorganic poisonous goods.
Packing: The products is Packed in a polythene plastic sack. Net weight is 25kg, per sack.
Ammonium hydrogen fluoride is mainly used as carved glass etching agent, preservative, disinfectant, solvent for beryllium metal beryllium oxide, analytical reagent and surface treatment agent for silica steel plate, and also used in the manufacture of ceramic and aluminum-magnesium alloy oxidant and boiler feed system steam generation cleaning agent, organic synthesis fluorinating agent, electroplating solution, reagent for extracting rare elements.
Cas:1341-49-7
UN NO.: 1727
EINECS: 215-676-4
Synonyms:Acid ammonium fluoride,Ammonium fluorine hydride
Description:White rhombus or flake crystal,poisonous,hardly dissolved in alcohol.Stable in dry state,the aqueous solution is acidity,deliquescence in air,causticity on glass.
Functional use:It is used for oil filed acidification,manufacturing medium and magnesium alloy.Used as matt for glass,blooming,wood preservative.Alaminium brightener.As a rust remove in textile industry,plating,electronics industry,andlytical reagent.
Package: 25 kg plastic woven bag or in ton bag
Transportation: Damp-proof,inorganic toxicant.
Price term: FOB /CIF, T/T
contact: Nicole
