Pyrophosphoric acid

CAS 2466-09-3(HO)2P(O)OP(O)(OH)2Acids & Bases

Pyrophosphoric acid (CAS 2466-09-3), also known as diphosphoric acid, is an inorganic acid with the linear formula (HO)2P(O)OP(O)(OH)2 and a molecular weight of 177.98 g/mol. This compound exhibits acidic properties and is a key reagent in various chemical synthesis pathways. Its applications span across laboratory research and industrial processes requiring a strong acidic catalyst or dehydrating agent. TSS supplies this chemical for research and development purposes.

IUPAC: Diphosphoric acid
Synonyms: Diphosphoric acid

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Pyrophosphoric acid ((HO)2P(O)OP(O)(OH)2) — chemical structure, CAS 2466-09-3; Chemistry, fine chemical supplied by Tech Serve Solutions

AcidsAcids & BasesChemical SynthesisInorganic AcidsSynthetic Reagents

01 /Applications

Chemical Synthesis

Pyrophosphoric acid serves as a dehydrating agent and a catalyst in various organic and inorganic syntheses. Its strong acidic nature facilitates numerous chemical transformations.

Laboratory Reagent

It is utilised in laboratory settings for analytical procedures and as a reactant in experimental chemistry. Its specific properties make it valuable for specialised research.

Inorganic Acid Source

As a concentrated inorganic acid, it can be employed in applications where a potent acidic medium is required, such as in certain etching or cleaning formulations.

02 /Properties

Molecular weight	177.98
Linear formula	(HO)2P(O)OP(O)(OH)2
Impurities tested	≥20% H3PO4

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Danger

Hazard statements

H302Harmful if swallowed
H314Causes severe skin burns and eye damage

Precautionary statements

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

Transport (UN / ADR)	UN 3260 8 / PGII
Water hazard class (WGK, DE)	3
Hazard codes (EU)	C
Risk statements (R)	22-34
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.

04 /Identifiers & registry

CAS number

2466-09-3

MDL number

MFCD00011343

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 Pyrophosphoric acid used for?

Pyrophosphoric acid is used as a dehydrating agent and catalyst in chemical synthesis, as a laboratory reagent, and as a source of concentrated inorganic acid.

What is the CAS number and formula for Pyrophosphoric acid?

The CAS number for Pyrophosphoric acid is 2466-09-3, and its linear formula is (HO)2P(O)OP(O)(OH)2.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Pyrophosphoric acid with an impurity of ≥20% H3PO4. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.

How should Pyrophosphoric acid be handled safely?

Pyrophosphoric acid is a danger; it causes severe skin burns and eye damage (H314) and is harmful if swallowed (H302). Wear protective gloves, eye protection, and face protection. In case of contact, rinse cautiously with water for several minutes and seek immediate medical attention.

How is Pyrophosphoric acid packed and shipped?

Pyrophosphoric acid is packed and shipped according to UN 3260, Class 8, Packing Group II regulations, suitable for international export.

How can I request a sample or quote for Pyrophosphoric acid?

To request a sample or a quote for Pyrophosphoric acid, please contact our sales team through the website or by phone, referencing the CAS number 2466-09-3.