Molekula

Metaphosphoric acid

SKU 63695379 CAS 37267-86-0 (HPO3)n MW 239.94 In stock

Metaphosphoric acid is a polymeric inorganic acid used in catalysis, polymerization, and as a reagent in organic synthesis. It appears as a white, hygroscopic solid and is highly corrosive. Available in powder form with a molecular formula of (HPO3)n, a molecular weight of 239.94 g/mol, and stored at ambient temperatures. It carries a Danger signal word due to its corrosive nature. Molekula supplies Metaphosphoric acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

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Overview

Pricing & pack sizes

Pack sizes & pricing

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100 g — €227.00 per pack

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Specifications

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Property	Value
Appearance	Colourless to white crystals and/or chunks
Heavy metals	≤0.005 %
Chloride (Cl)	≤0.001 %
Purity (Titration by NaOH)	33.5 to 36.5 % (HPO3)
Iron (Fe)	≤0.005 %
Sulphate (SO4)	≤0.005 %
Arsenic (As)	≤1 ppm
Content of stabilizer	57.0 to 63.0 % NaPO3
Nitrate (NO3)	≤0.001 %
KMnO4-reducing substance	≤0.02 % (as H3PO3)

Storage & handling

Property	Value
Storage Temperature	Ambient
Transport Class	8
Packing Group	II
Shelf Life	60 months
Acidity	Acid

Identification

Property	Value
SKU	63695379
CAS Number	37267-86-0
Molecular Formula	(HPO3)n
Molecular Weight	239.94
SMILES	OP(=O)=O
EC / UN Number	3260
REACH Code	Y110
TSCA Listed	Yes
HTS Code	28092000
Tariff Code	2809200000

Safety & GHS

Danger

Corrosive GHS05

Hazard statements

H314 (sub cat. 1A) Causes severe skin burns and eye damage
H335 May cause respiratory irritation

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
P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Safety Data Sheets (SDS)

Available in PT, US, IT, FR, ES, DE, EN.

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

No alternate names recorded for this product.

Frequently asked questions

What is metaphosphoric acid used for?

Metaphosphoric acid is used as a catalyst in organic synthesis and as a reagent in the production of phosphates and other phosphorus compounds.

What is the chemical formula and molecular weight of metaphosphoric acid?

The formula is (HPO3)n and the molecular weight is 239.94 g/mol.

How should metaphosphoric acid be stored?

It should be stored at ambient temperature, away from moisture and incompatible materials.

What grade of metaphosphoric acid does Molekula supply?

Molekula supplies metaphosphoric acid in reagent grade.

Can Molekula supply metaphosphoric acid in bulk?

Yes, Molekula can supply metaphosphoric acid in bulk quantities upon request.

What documentation comes with a purchase of metaphosphoric acid?

Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.

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