Ammonium fluoride – hydrofluoric acid mixture
Ammonium fluoride – hydrofluoric acid mixture (CAS 70456-74-5, NH4F · HF) is a critical component in specialized industrial applications. This solution is recognised for its potent etching and cleaning properties, making it indispensable in the microelectronics sector for precise surface preparation. Its unique chemical nature facilitates advanced material processing and is supplied by TSS in semiconductor grade for demanding technological processes.
Microelectronics Manufacturing
Utilised in semiconductor fabrication for etching silicon wafers and cleaning processes, enabling the intricate circuitry required for modern electronic devices. Its precise formulation ensures consistent and reliable results in these sensitive operations.
Materials Science
Employed in materials science for surface treatment and modification of various substrates. Its chemical reactivity allows for controlled etching and conditioning of materials used in advanced research and development.
Specialty Etching
Serves as a key etchant in diverse industrial processes requiring controlled material removal. Its mixture composition offers specific etching characteristics valuable for niche manufacturing applications.
| Linear formula | NH4F · HF |
|---|---|
| Grade | semiconductor grade PURANAL™ |
Hazard statements
- H301Toxic if swallowed
- H310Fatal in contact with skin
- H314Causes severe skin burns and eye damage
- H330Fatal if inhaled
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory protection
- P301IF SWALLOWED
- P302IF ON SKIN
- P305IF IN EYES
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 2922 6.1(8) / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,C |
| Risk statements (R) | 23/24/25-34 |
| Safety statements (S) | 26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Cofa | specification on request |
|---|
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.
What is Ammonium fluoride – hydrofluoric acid mixture used for?
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Ammonium fluoride – hydrofluoric acid mixture is primarily used in microelectronics for etching and cleaning semiconductor wafers, and in materials science for surface treatment and modification.
What is the CAS number and chemical formula for Ammonium fluoride – hydrofluoric acid mixture?
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The CAS number is 70456-74-5 and the chemical formula is NH4F · HF.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ammonium fluoride – hydrofluoric acid mixture in semiconductor grade PURANAL™. TSS does not represent this product as USP, BP, or EP grade.
How should Ammonium fluoride – hydrofluoric acid mixture be handled?
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Handling requires extreme caution due to severe corrosive and toxic hazards. Use appropriate personal protective equipment, including a full-face respirator, gloves, goggles, and protective clothing. Work only in a well-ventilated area or fume hood.
How is this chemical packed and exported?
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This product is classified under UN 2922, Hazard Class 6.1 (Toxic) and 8 (Corrosive), Packing Group II, and is shipped according to stringent international regulations for hazardous materials.
How can I request a quote or sample?
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To request a quote or sample, please contact Tech Serve Solutions directly through our website or sales department with your specific requirements.
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