Magic Acid

CAS 23854-38-8FSO3H·SbF5Acids & Bases

Magic Acid (CAS 23854-38-8), with the formula FSO3H·SbF5, is an exceptionally strong superacid. It is a 1:1 complex of fluorosulfuric acid and antimony pentafluoride, exhibiting remarkable acidic properties. This compound is primarily employed in specialised organic synthesis, particularly in reactions requiring extreme protonating power or as a catalyst for difficult transformations. Its high reactivity necessitates careful handling and storage.

IUPAC: Fluorosulfuric acid-antimony pentafluoride 1:1

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Magic Acid (FSO3H·SbF5) — chemical structure, CAS 23854-38-8; Chemistry, fine chemical supplied by Tech Serve Solutions

AcidsAcids & BasesChemical SynthesisInorganic AcidsSynthetic Reagents

01 /Applications

Catalysis in Organic Synthesis

Magic Acid serves as a potent catalyst in various organic reactions due to its extreme acidity. It facilitates isomerisations, alkylations, and acylations that are challenging with conventional acid catalysts.

Superacidic Medium

It provides a unique superacidic medium for studying reaction mechanisms and synthesising highly unstable or reactive intermediates. Its capabilities extend to polymerisation reactions.

Reagent for Fluorination

While primarily known for its acidity, its components also lend it utility in specific fluorination reactions where controlled introduction of fluorine is required.

02 /Properties

Molecular weight	316.82
Linear formula	FSO3H·SbF5
Assay	100%
Storage temperature	−20°C

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

GHS hazard pictogram: Toxic (GHS06) — Toxic

GHS hazard pictogram: Environmental hazard (GHS09) — Environmental hazard

Danger

Hazard statements

H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H331Toxic if inhaled
H411Toxic to aquatic life with long-lasting effects

Precautionary statements

P261Avoid breathing dust, fume, gas or vapours
P273Avoid release to the environment
P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

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 8/PG 1
Water hazard class (WGK, DE)	2
Hazard codes (EU)	C,N
Risk statements (R)	20/22-35-51/53
Safety statements (S)	26-36/37/39-45-61

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

04 /Identifiers & registry

CAS number

23854-38-8

MDL number

MFCD09039262

PubChem substance

24850361

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 Magic Acid (CAS 23854-38-8) used for?

Magic Acid is used as a potent catalyst in organic synthesis, particularly for isomerisations, alkylations, acylations, and polymerisation reactions. It also serves as a superacidic medium for specialised chemical research.

What are the CAS number and chemical formula for Magic Acid?

The CAS number for Magic Acid is 23854-38-8, and its chemical formula is FSO3H·SbF5.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Magic Acid with an assay of 100%. This product is supplied for research and development or industrial use. TSS does not represent this product as USP, BP, EP, or pharmacopoeia grade.

How should Magic Acid be handled and stored?

Magic Acid is a highly corrosive and toxic substance. Handling requires extreme caution, including the use of face shields, full-face respirators, chemical-resistant gloves, and goggles. It must be stored at -20°C in a well-ventilated area, away from incompatible materials.

How is Magic Acid packed, shipped, and exported?

Magic Acid is packed in accordance with UN 2922 (Corrosive liquid, toxic, n.o.s.) regulations for safe transport. TSS is experienced in exporting hazardous chemicals globally, adhering to all international shipping regulations.

How can I request a sample or quote for Magic Acid?

To request a sample or a quote for Magic Acid, please contact our sales team through the website or by calling us directly. Please specify the quantity required and your delivery location.