---
title: Sodium Pyrophosphate
date: 2025-03-05T12:11:22Z
modified: 2026-09-14T12:41:12Z
permalink: "https://allanchem.com/sodium-pyrophosphate/"
type: page
status: publish
excerpt: ""
wpid: 4514
timestamp: 2026-09-14T12:41:12Z
tags: []
---

##### CAS Number

13472-36-1















##### Grade

ACS, Tech















##### Packaging

Bag







































Sodium pyrophosphate, also known as tetrasodium pyrophosphate. It is an inorganic compound composed of sodium ions and pyrophosphate anions.
**Chemical Formula:** Na₄P₂O₇
**CAS Number:** 13472-36-1
**Grade:** ACS, Tech
**Appearance**: White crystalline solid.
**Uses:**
**Metal treatment:** It is used in some metal cleaning and degreasing solutions.
**Detergents:** Some laundry detergents as a water softener and chelating agents to improve the cleaning performance by binding to metal ions in hard water
**Food additive:** Primarily used as an emulsifier and thickener in various food products.
**Industries and Common Applications:**
**Food and beverage industry:** Serves as emulsifier, and nutrient supplement in various food products.
**Textile industry:** In some cases, used in textile dyeing and printing processes.
**Pharmaceutical industry**: In some limited applications as an excipient and also a component in some kinds of toothpaste as a stain remover and whitening agent.







































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