Molekula
Ammonium hydrogen difluoride
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Ammonium hydrogen difluoride is a corrosive inorganic compound used in etching glass, semiconductor manufacturing, and as a fluorinating agent. It also serves in magnesium alloy production, aluminum brightening, electroplating, oil well acidizing and industrial equipment cleaning. It is available as a solid or aqueous solution. CAS: 1341-49-7, molecular formula: NH4F · xHF, molecular weight: 57.04 g/mol, stored at ambient temperature. Signal word: Danger. Molekula supplies Ammonium hydrogen difluoride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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500 g — £29.50 per pack ex VAT · £35.40 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White flake |
| Assay | ≥95.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Rhombic or tetragonal crystals |
| Odour | Odorless |
| Melting Point | 125.6 °C |
| Boiling Point | 240 °C (decomposes) |
| Density | 1.50 g/cm³ |
| Water Solubility | 602 g/L at 20 °C |
| Refractive Index | 1.390 |
Source: PubChem CID 14935 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 45849153 |
| CAS Number | 1341-49-7 |
| IUPAC Name | azanium;fluoride;hydrofluoride |
| EC Number | 215-676-4 |
| Molecular Formula | NH4F . xHF |
| Molecular Weight | 57.04 |
| Exact Mass | 57.039 |
| SMILES | [NH4+].F.[F-] |
| InChIKey | KVBCYCWRDBDGBG-UHFFFAOYSA-N |
| InChI | InChI=1S/2FH.H3N/h2*1H;1H3 |
| PubChem CID | 14935 |
| UN Number | UN1727 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2826.19.1000 |
| Tariff Code | 2826191000 |
Safety & GHS
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Corrosive
GHS05
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Toxic
GHS06
Hazard statements
- H301 Toxic if swallowed
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Acid ammonium fluoride
- Ammonium acid fluoride
- AMMONIUM BIFLUORIDE
- Ammonium difluoride
- Ammonium fluoride ((NH4)(HF2))
- Ammonium fluoride comp. with hydrogen fluoride (1:1)
- Ammonium hydrofluoride
- Ammonium hydrogen bifluoride
- Ammonium hydrogen fluoride
- Fluorure acide d'ammonium
Frequently asked questions
What is ammonium hydrogen difluoride used for?
It is primarily used as a fluorinating agent in organic synthesis and for etching glass and ceramics.
What is the chemical formula and molecular weight?
The formula is NH4F · xHF with a molecular weight of 57.04 g/mol.
How should ammonium hydrogen difluoride be stored?
It should be stored at ambient temperature in a tightly sealed container, away from moisture and incompatible materials.
What grade is available?
Available in reagent grade; custom grades may be available upon request.
Can Molekula supply it in bulk?
Yes, Molekula can supply ammonium hydrogen difluoride in bulk quantities; please contact sales for details.
What documentation comes with the order?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.