Molekula
di-Potassium hydrogen phosphate anhydrous
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
Di-Potassium hydrogen phosphate anhydrous is a white, crystalline powder used as a buffer, pH adjuster, and nutrient source in laboratory and industrial applications. Typical applications include buffering and corrosion inhibition in antifreeze, nutrient supply for antibiotic fermentation, sequestering and emulsifying in certain cheeses, and specialty fertilizers. It is available in high purity with a molecular formula of K2HPO4, molecular weight of 174.18 g/mol, and CAS number 7758-11-4. Stored at ambient temperatures, it is classified as a hazardous substance with a signal word of Danger. Molekula supplies di-Potassium hydrogen phosphate anhydrous 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.
Often bought together
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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500 g — $64.30 per pack
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1 kg — $93.40 per pack
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5 kg — $355.40 per pack
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 | White powder |
| Heavy metals | ≤0.001% |
| pH | 8.5 - 9.6 |
| Loss on Drying | ≤1.0% |
| Chloride (Cl-) | ≤0.03% |
| Assay | ≥99.0% |
| Water insoluble matter | ≤0.2% |
| Arsenic (As) | ≤3ppm |
| Sulphates (SO4)(2-) | ≤0.1% |
| Fluoride (F-) | ≤0.001% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystals |
| Solubility (other solvents) | Freely soluble in water. Insoluble in ethanol |
Source: PubChem CID 24450 (HSDB, EU Food Improvement Agents)
Identification
| Property | Value |
|---|---|
| SKU | 33750632 |
| CAS Number | 7758-11-4 |
| IUPAC Name | dipotassium;hydrogen phosphate |
| EC Number | 231-834-5 |
| Molecular Formula | K2HPO4 |
| Molecular Weight | 174.18 |
| Exact Mass | 173.8887 |
| SMILES | OP(=O)([O-])[O-].[K+].[K+] |
| InChIKey | ZPWVASYFFYYZEW-UHFFFAOYSA-L |
| InChI | InChI=1S/2K.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2 |
| PubChem CID | 24450 |
| UN Number | UN3288 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2835.24.0000 |
| Tariff Code | 2835240000 |
Safety & GHS
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Toxic
GHS06
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H331 Toxic if inhaled
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P284 Wear respiratory protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+312 IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell
- 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 di-Potassium hydrogen phosphate anhydrous commonly used for?
It is primarily used as a buffering agent in pharmaceuticals, food processing (e.g., pH adjustment in dairy and beverages), and as a nutrient in cell culture media.
What is the molecular formula and molecular weight of di-Potassium hydrogen phosphate anhydrous?
The molecular formula is **K₂HPO₄**, and the molecular weight is **174.18 g/mol**.
How should di-Potassium hydrogen phosphate anhydrous be stored?
Store in a tightly sealed container at **ambient temperature**, away from moisture and incompatible substances.
What grades of di-Potassium hydrogen phosphate anhydrous does Molekula supply?
Molekula supplies **analytical reagent (AR) grade** and **industrial grade** di-Potassium hydrogen phosphate anhydrous.
Can Molekula supply di-Potassium hydrogen phosphate anhydrous in bulk quantities?
Yes, Molekula can provide bulk quantities of di-Potassium hydrogen phosphate anhydrous, with packaging options tailored to your needs.
What documentation comes with an order of di-Potassium hydrogen phosphate anhydrous?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and a **packing list** with batch-specific details.
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.