Molecular formula: NH4HF2
Molecular weight: 57.04
Property: White needle crystal which is easy to get deliquescent and lump, soluble in water, slightly soluble in alcohol.In hot water it will decompose into ammonia and ammonium bifluoride, and decompose into ammonia and ammonium fluoride if heated. The PH value of its aqueous solution isless than 7. It is corrosive to glass.
Use: Etching agent for engraved glass, antiseptics, solvent for beryllia to making metal polonium, surfacing agent for analytical agent and silicic steel plate, the oxidant for making ceramics and aluminum and magnesium alloy, cleaner for steam generating system of boiler feed system, fluridizer for organo synthesis, reagent for extracting rare elements,andplatingsolution.
Product quality: Industrial standard of People's Republic of China/Industrial ammonium bifluoride HG/T 3586-1999
| Index name | Index name | ||
| Export product | Top grade | First grade | |
| Ammonium bifluoride(NH4HF2) (base on dry basis)%> | 98.0 | 97.0 | 95.0 |
| Loss on drying%< | 1.5 | 3.0 | 5.0 |
| Content of residue on ignition%< | 0.2 | 0.2 | 0.2 |
| Sulfate(base on SO4) content%< | 0.1 | 0.1 | 0.1 |
| Content of ammonium fluosilicate [(NH4)SiF6]%< | 2.0 | 2.0 | 4.0 |
Casing: Plastic woven bag lined with high-pressure polythene plastic bag, net weight 25 kg.