Molekula
Potassium phosphate tribasic
Potassium phosphate tribasic is a water-soluble inorganic salt used as a buffer, pH adjuster, and reagent in biochemical and pharmaceutical applications. It is available in high purity with a molecular weight of 212.27 g/mol and a CAS number of 7778-53-2. Stored at ambient temperatures, it is classified as a hazardous substance with a signal word of Danger. Molekula supplies Potassium phosphate tribasic from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Potassium phosphate tribasic is a water-soluble inorganic salt used as a buffer, pH adjuster, and reagent in biochemical and pharmaceutical applications. It is available in high purity with a molecular weight of 212.27 g/mol and a CAS number of 7778-53-2. Stored at ambient temperatures, it is classified as a hazardous substance with a signal word of Danger. Molekula supplies Potassium phosphate tribasic from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white powder |
| Heavy metals | ≤ 10mg/kg |
| pH | 11.5 - 12.5 |
| Loss on Drying | ≤ 5.0% |
| Fluoride (F) | ≤ 10.0mg/kg |
| Assay | ≥ 97% (on dried basis) |
| Water Insolubles | ≤ 0.2% |
| Lead (Pb) | ≤ 2.0mg/kg |
| Arsenic (As) | ≤ 3.0mg/kg |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 24 months |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| CAS Number | 7778-53-2 |
| Molecular Formula | K3PO4 |
| Molecular Weight | 212.27 |
| SMILES | [O-]P(=O)([O-])[O-].[K+].[K+].[K+] |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28352400 |
| Tariff Code | 2835240000 |
Safety & GHS
-
Explosive
GHS01
-
Compressed Gas
GHS04
Hazard statements
- H315 Causes skin irritation
- H318 Causes serious eye damage
- H335 May cause respiratory irritation
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- 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
- P333+313 IF skin irritation or a rash occurs: Get medical advice/attention
- P337+313 If eye irritation persists get medical advice/attention
For research and industrial use only
Documents
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.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is potassium phosphate tribasic used for?
It is commonly used as a buffering agent in biochemical applications and in the formulation of fertilizers and food additives.
What is the chemical formula and molecular weight of potassium phosphate tribasic?
The formula is K3PO4 and the molecular weight is 212.27 g/mol.
How should potassium phosphate tribasic be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available for potassium phosphate tribasic?
It is available in reagent grade and food grade, depending on application needs.
Can Molekula supply potassium phosphate tribasic in bulk?
Yes, Molekula offers bulk quantities for industrial and large-scale applications.
What documentation comes with an order of potassium phosphate tribasic?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) upon request.
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.