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AMMONIUM BIFLUORIDE Extra Pure

Ammonium hydrogen difluoride, Etching powder

Restricted for Export (Under Scomet)  
COAs

Packings

500 g (00500)

2500 g (02500)

25 Kg (0025K)

50 Kg (0050K)

1PW1200750 1PW1202500 1PDL00040K 1PDLP0065K
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Article No. 01090 Grade Extra Pure
Purity 98% CAS No. 1341-49-7
Molecular Formula NH4F.HF Molecular Weight 57.07
H.S. Code 2826.1990 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour White crystalline
Odour Odorless pH value 3.5 (5% Solution)
Melting point/ Freezing point [°C] 125 °C Boiling point [°C] 240°C
Density [g/cm3] 1.5 Solubility in water [% weight] 41.5g/l00 g Water @ 250C

Specifications

Appearance White crystalline hygroscopic powder/Flakes Assay (acidimetric) Min 98%
Residue on ignition Max 0.05% Chloride (Cl) Max 0.005%
Silica (SiO2) Max 0.5% Sulphate (SO4) Max 0.05%
Iron (Fe) Max 0.005% Lead (Pb) Max 0.01%

Safety Information and Hazard Symbols

Skull and Crossbones Corrosion
Symbol: GHS05, GHS06
 Signal Word: Danger
 UN No.: 1727
 IMCO Class No.: 8
 Packing Group: II
 Hazardous Statement: H301-H314
 Precaution Statement: P280-P301 + P310-P305 + P351 + P338-P310
Revision Date: 29-Nov-2021

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