Ammonium hydrogen difluoride

CAS 1341-49-7NH4HF2Salts

Ammonium hydrogen difluoride (CAS: 1341-49-7), with the chemical formula NH4HF2 and a molecular weight of 57.04 g/mol, is an inorganic salt. It is known for its corrosive properties and is primarily utilised in industrial applications such as glass etching, metal pickling, and as a solvent in certain chemical processes. This compound is supplied by Tech Serve Solutions for various research and industrial needs.

IUPAC: Ammonium bifluoride,Etching powder

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Ammonium hydrogen difluoride (NH4HF2) — chemical structure, CAS 1341-49-7; Chemistry, fine chemical supplied by Tech Serve Solutions

Ammonium SaltsEssential ChemicalsResearch EssentialsSalts

01 /Applications

Glass Etching and Frosting

Ammonium hydrogen difluoride is widely employed for etching and frosting glass surfaces due to its ability to react with silica. It allows for precise decorative patterns or frosted finishes on glass items.

Metal Treatment

This compound serves as a component in metal pickling baths. It helps to remove oxides and scale from metal surfaces, preparing them for further processing or finishing.

Chemical Synthesis

It acts as a fluorinating agent or a solvent in specific organic and inorganic synthesis routes. Its reactivity makes it valuable in specialised chemical manufacturing.

Wood Preservation

Ammonium hydrogen difluoride can be used in formulations for wood preservation, helping to protect timber from fungal decay and insect attack.

02 /Properties

Molecular weight	57.04
Linear formula	NH4HF2
Assay	99.999% trace metals basis
Grade	ARVetec™
Melting point	125 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

GHS hazard pictogram: Toxic (GHS06) — Toxic

Danger

Hazard statements

H301Toxic if swallowed
H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P301IF SWALLOWED
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

Transport (UN / ADR)	UN 1727 8 / PGII
Water hazard class (WGK, DE)	1
Hazard codes (EU)	T,C
Risk statements (R)	25-34
Safety statements (S)	22-26-37-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

1341-49-7

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Ammonium hydrogen difluoride used for?

Ammonium hydrogen difluoride is used for glass etching, metal treatment, wood preservation, and in certain chemical synthesis processes.

What are the CAS number and formula for Ammonium hydrogen difluoride?

The CAS number is 1341-49-7 and the chemical formula is NH4HF2.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Ammonium hydrogen difluoride in AR grade with an assay of 99.999% trace metals basis.

How should Ammonium hydrogen difluoride be handled safely?

Ammonium hydrogen difluoride is corrosive and toxic. Handle with extreme care, wearing appropriate personal protective equipment (gloves, eye protection, respiratory protection) in a well-ventilated area. Avoid contact with skin, eyes, and clothing, and do not ingest. Refer to the Safety Data Sheet (SDS) for detailed handling instructions.