---
title: Potassium Phosphate Dibasic 3H₂O
date: 2025-03-05T09:14:21Z
modified: 2026-09-16T12:01:50Z
permalink: "https://allanchem.com/potassium-phosphate-dibasic-3h20/"
type: page
status: publish
excerpt: ""
wpid: 4415
timestamp: 2026-09-16T12:01:50Z
tags: []
---

##### CAS Number

16788-57-1















##### Grade

ACS, FCC, USP















##### Packaging

Fiber Drum







































Potassium phosphate dibasic trihydrate, also known as dipotassium hydrogen phosphate trihydrate.
**Chemical Formula:** K₂HPO₄ • 3H₂O
**Appearance:** A colorless to white crystals or granules.
**Uses:**
**Food and Beverage Industry:** It is used as a food additive in the food processing industry. It serves as an acidity regulator, buffering agent, and nutrient supplement in food and beverage products**.**
**Pharmaceuticals:** It is used in pharmaceutical formulations as an excipient or buffering agent in oral medications, tablets, and capsules.
**Laboratory Reagent:** Potassium phosphate dihydrate acts as a reagent in laboratory experiments, particularly in biochemical and molecular biology research. Used to prepare phosphate buffer solutions for analytical and experimental purposes.
**Cosmetics and Personal Care Industry:** Potassium phosphate dihydrate may be found in cosmetic and personal care formulations, such as skin care products, hair care products, and toothpaste, where it functions such as pH adjustment and stabilization.
**Fertilizer:** Potassium phosphate dihydrate is used as a source of potassium and phosphate in fertilizer formulations. It provides essential nutrients to plants, promoting growth, flowering, and fruiting
**Soil Amendment:** In agriculture, it may be applied to soil as a pH adjuster and nutrient supplement to improve soil fertility and plant health.







































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