meta-Phosphoric acid

CAS 37267-86-0(HPO3)nAcids & Bases

Meta-Phosphoric acid (CAS: 37267-86-0), with the linear formula (HPO₃)ₙ, is an inorganic acid supplied by Tech Serve Solutions. This compound is typically a mixture of polymeric metaphosphoric acids stabilised with sodium metaphosphate. It serves as a key reagent in chemical synthesis and is utilised in various industrial applications requiring acidic properties.

IUPAC: Metaphosphoric acid

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meta-Phosphoric acid ((HPO3)n) — chemical structure, CAS 37267-86-0; Chemistry, fine chemical supplied by Tech Serve Solutions

AcidsAcids & BasesChemical SynthesisInorganic AcidsSynthetic Reagents

01 /Applications

Chemical Synthesis

Meta-Phosphoric acid acts as a dehydrating agent and a catalyst in various organic and inorganic synthesis reactions. Its acidic nature makes it suitable for promoting specific chemical transformations.

Industrial Applications

Utilised in processes where an inorganic acid is required, such as in the treatment of metals or as a component in specialised formulations. It is often employed in applications where controlled acidity is a key requirement.

Laboratory Reagent

Serves as a versatile reagent in research and development laboratories for analytical procedures and synthetic chemistry experiments. Its specific properties can be advantageous for certain experimental setups.

02 /Properties

Linear formula	(HPO3)n
Assay	≥33.5% (T)
Contains / stabiliser	57-63% NaPO3 as stabilizer
Impurities tested	~35% (NaPO3)

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

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

Protective equipment	Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Transport (UN / ADR)	UN 3260 8 / PGIII
Water hazard class (WGK, DE)	3
Hazard codes (EU)	C
Risk statements (R)	22-35
Safety statements (S)	26-36/37/39-45
Cation traces	As: ≤1 mg/kgCa: ≤20 mg/kgCd: ≤5 mg/kgCo: ≤5 mg/kgCr: ≤5 mg/kgCu: ≤5 mg/kgFe: ≤10 mg/kgK: ≤50 mg/kgMg: ≤5 mg/kgMn: ≤5 mg/kgNi: ≤5 mg/kgPb: ≤5 mg/kgZn: ≤5 mg/kg
Anion traces	chloride (Cl-): ≤10 mg/kgnitrate (NO3-): ≤5 mg/kgsulfate (SO42-): ≤20 mg/kg

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

04 /Identifiers & registry

CAS number

37267-86-0

MDL number

MFCD00011351

PubChem substance

24854366

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 Meta-Phosphoric acid used for?

Meta-Phosphoric acid is used as a reagent in chemical synthesis, as a dehydrating agent, a catalyst, and in various industrial applications requiring controlled acidity. It also functions as a laboratory reagent for research and analytical purposes.

What is the CAS number and formula for Meta-Phosphoric acid?

The CAS number for Meta-Phosphoric acid is 37267-86-0, and its linear formula is (HPO₃)ₙ.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Meta-Phosphoric acid with an assay of ≥33.5% (T), containing approximately 35% NaPO₃ as a stabilizer. We do not represent this product as USP, BP, or EP grade unless explicitly stated in the product specifications.

How should Meta-Phosphoric acid be handled safely?

Meta-Phosphoric acid is a dangerous substance, causing severe skin burns and eye damage. Appropriate personal protective equipment, including eyeshields, face shields, gloves, and suitable respiratory protection, must be worn when handling. Refer to the safety data sheet for detailed handling instructions.

Is Meta-Phosphoric acid packed and shipped internationally?

Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Meta-Phosphoric acid, adhering to all relevant shipping regulations.

How can I request a sample or quote for Meta-Phosphoric acid?

To request a sample or a quote for Meta-Phosphoric acid, please contact our sales team through the website or by phone, providing your specific requirements.