Quick Detail
Place of Origin
HS-CODE
28-
Package & Delivery Lead Time
Detailed Description
Classification Halide (Except Chloride)
Type Ammonium Bifluoride
CAS No. 1341-49-7
Place of Origin Shandong, China (Mainland)
Grade Standard Reagent Grade
Purity 98%
colour colorless or white
Molecular formula:NH4HF2
Ammonium hydrogen fluoride
Molecular formula:NH4HF2
Molecular weight:57.04
Physicochemical properties:
This product is rhombic or flake crystal of white or colorless,and its relative density is 1.52.At -14.8-126.1,there isn't hydrate in NH4HF2-H2O system.It is acidy and easy to deliquesce in the air,and it slightly dissolves in alcohol. It easily dissolves in cold water and resolves in hot water.It's aqueous solution is acidic.It can sublimate in high temperature and corrode glass. It is poisonous and corrosive to the skin.
Technical specifications:
Chemical reagent NH4HF2 GB/T1278-1994
ITEM A.P C.P
(NH4HF2)content % ≥ 98.0 97.0
Ignition residue (sulphate)% ≤ 0.01 0.05
Chloride(CL) % ≤ 0.001 0.005
Sulphate(SO4) % ≤ 0.005 0.01
Fluosilicate(SiF6) % ≤ 0.2 0.5
Fe % ≤ 0.001 0.005
heavy metal (Pb) % ≤ 0.002 0.005
Industry NH4HF2 Q/01GJH009-2001
ITEM INDEX
Premium Grade First Grade
(NH4HF2) content % ≥ 97.0 95.0
Loss on drying % ≤ 3.0 5.0
Ignition residue % ≤ 0.2 0.2
Sulphate(SO4) % ≤ 0.1 0.1
Ammonium fluorosilicate (NH4)2Si6F % ≤ 2.0 4.0
Package ,Storage and Transportation:
This product is packaged in plastic bottles or solid material bags lined with polyethylene plastic film.It should be stored in dry warehouses,and the temperature shouldn't exceed 50.It must avoid breakage, contamination and moisture.In the transport, we must take measures to prevent rain and snow and thermal insulation.
Appliction:
chemical reagent,glass etchant(usually used with HF),hakko kogyo disinfectant and antiseptic,oxidation of ammonium and ammonium solvent and silicon steel surface treatment agent.It's also used for manufacturing ceramics and magnesium alloy.