Product Name:

Ammonium Bifluoride

WCode:

01-028

CAS No.:

1341-49-7

Molecular Formula:

NH4HF2

Formula Weight:

57.04

           

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 ºF (126 ºC)

Boiling Point

462 ºF (239 ºC)

Specific Gravity

1.5

Solubility in Water (25ºC)

41.5% by weight

 

 

Applications

Glass frosting, Sugar Industry as a bactericide, Cleaning and Etching, Wood preservative, Stain Removing, Breweries and Distilleries, Uranium separation, Metal pickling, Acidising oil, Aluminum Anodizing.

 

Sales Specification

Assay

95.0% Min

Ammonium Fluoride (NH4F)

5.0%Max

Arsenic (As)

5.0 ppm Max

Heavy Metals (as Pb)

0.02% Max

Iron (Fe)

0.05% Max

Sulfate (SO4)

0.20% Max

Sulfite (SO3)

0.01% Max

Water (Karl Fischer)

0.50% Max

Packing:

In 50 LB kraft paper bags

  

Transportation

Shipping name:

Ammonium Bifluoride, Solid

UN No.:

1727

Hazard Class:

8

Packing Group:

II