Molekula
Phosphomolybdic acid hydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Phosphomolybdic acid hydrate is a yellow crystalline solid used as a reagent in analytical chemistry, particularly as a staining reagent for thin-layer chromatography, and as a catalyst in organic synthesis. It appears as a hygroscopic powder with strong oxidizing properties, commonly employed in biochemical assays and material analysis. CAS 51429-74-4, molecular formula H3Mo12O40P · H2O, molecular weight 1843.52 g/mol. Store at ambient conditions in a tightly sealed container, away from moisture and incompatible substances. Signal word: Danger. Molekula supplies Phosphomolybdic acid hydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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100 g — £90.00 per pack ex VAT · £108.00 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Yellow powder |
| Chloride (Cl-) | ≤ 0.04 % |
| Assay | ≥ 98.0 % |
| Water insoluble matter | ≤ 0.02 % |
| Lead (Pb) | ≤ 0.04 % |
| Calcium (Ca) | ≤ 0.02 % |
| Ammonium (NH4+) | ≤ 0.02 % |
| Sulphates (SO4)(2-) | ≤ 0.05 % |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 5.1 (8) |
| Packing Group | II |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 41368819 |
| CAS Number | 51429-74-4 |
| Molecular Formula | H3Mo12O40P · H2O |
| Molecular Weight | 1843.52 |
| SMILES | O.OP(=O)(O)O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O |
| UN Number | UN3085 |
| REACH Code | Y110 |
| HTS Code | 2811.19.6190 |
| Tariff Code | 2811198090 |
Safety & GHS
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Oxidizing
GHS03
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Corrosive
GHS05
Hazard statements
- H272 May intensify fire; oxidizer
- H290 May be corrosive to metals
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
Precautionary statements
- P220 Keep/Store away from clothing/combustible materials
- 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
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
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 phosphomolybdic acid hydrate commonly used for?
It is used as a staining reagent in thin-layer chromatography and histology, as a component of Folin-type reagents for phenols and reducing agents, and as an alkaloid precipitant in analytical chemistry, as well as in biochemical assays and catalytic applications as an acid or oxidation catalyst.
What is the chemical formula and molecular weight of phosphomolybdic acid hydrate?
The formula is H₃Mo₁₂O₄₀P · H₂O, and the molecular weight is 1843.52 g/mol.
How should phosphomolybdic acid hydrate be stored?
Store at ambient temperature in a tightly sealed container, away from moisture and incompatible substances.
What grades or purities of phosphomolybdic acid hydrate does Molekula offer?
Molekula supplies analytical reagent (AR) grade phosphomolybdic acid hydrate, suitable for high-precision applications.
Can Molekula supply phosphomolybdic acid hydrate in bulk quantities?
Yes, bulk quantities are available upon request—please contact our sales team for custom packaging and pricing.
What documentation comes with an order of phosphomolybdic acid hydrate?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.