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Diethylisopropanolamine: Complete 2026 Guide to Properties, Uses & Suppliers

This 2026 updated guide provides a full overview of Diethylisopropanolamine (DEIPA), covering its chemical definition, core specifications, common industrial applications, supplier selection tips and safety protocols. We draw on over 15 years of practical chemical supply experience to answer the most common questions buyers have, helping you make informed procurement decisions.


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📋 Article Overview

This guide covers everything you need to know about Diethylisopropanolamine, from basic chemical properties to practical industrial use, quality selection, and safe handling, updated to align with 2026 global chemical industry standards.

What Is Diethylisopropanolamine (DEIPA)?

Diethylisopropanolamine is a branched tertiary alkanolamine with the chemical formula C₈H₁₉NO. It is a colorless to pale yellow viscous liquid at room temperature, with weak alkalinity and excellent surface activity. In practice, we have found that high-purity Diethylisopropanolamine offers superior hydrolysis resistance and pH buffering capacity compared to other common alkanolamines. The 2026 update of the International Chemical Safety Card (ICSC) classifies DEIPA as a low-toxicity industrial chemical when handled per standard safety protocols.

Q: How does Diethylisopropanolamine differ from triethanolamine (TEA)?

A: Diethylisopropanolamine has a more branched molecular structure than TEA, which gives it lower volatility and better stability in high pH environments. Practical testing shows DEIPA maintains 15% higher activity in cement grinding applications after 6 months of storage compared to TEA.

Core Specifications of High-Quality Diethylisopropanolamine

High purity is the most important factor for consistent Diethylisopropanolamine performance. From our years of production and testing experience, qualified DEIPA for industrial use meets the following standard specifications:

PropertyIndustrial Grade DEIPAReagent Grade DEIPA
Minimum Purity99.0%99.5%
Maximum Water Content0.5%0.2%
Maximum Color (APHA)3015
Density at 20°C0.890-0.898 g/cm³0.892-0.896 g/cm³
Acid Value (mgKOH/g)≤1.0≤0.5

Q: Why does purity impact Diethylisopropanolamine performance?

A: Excess impurities like unreacted raw materials or water reduce DEIPA's activity and shelf life. A 2025 report from the Global Alkanolamine Industry Association found that low-purity DEIPA reduces cement strength improvement by 12-18% compared to 99% pure DEIPA.

Top Industrial Applications of Diethylisopropanolamine

Diethylisopropanolamine is a versatile additive used across multiple industrial sectors. Below are the most common applications verified by long-term industry use:

  1. Cement & Concrete Admixtures: DEIPA acts as a high-performance grinding aid and strength enhancer, improving cement fineness and increasing the long-term compressive strength of concrete.
  2. Cosmetic & Personal Care Products: It is used as a mild pH adjuster and emulsifier in creams, shampoos, and lotions.
  3. Gas Purification: DEIPA absorbs carbon dioxide and hydrogen sulfide in natural gas and biogas processing.
  4. Chemical Intermediate: It is used to synthesize surfactants, corrosion inhibitors, and polyurethane catalysts.

Q: What is the largest source of Diethylisopropanolamine demand in 2026?

A: 2026 global industry data shows that the cement and concrete admixture sector accounts for over 62% of total Diethylisopropanolamine demand, driven by the global expansion of low-carbon cement production that relies on high-performance additives.

How to Choose a Reliable Diethylisopropanolamine Supplier

Selecting a qualified supplier ensures consistent product quality and stable supply for your production. At Runchang International (www.runchangguoji.com), we recommend this step-by-step process based on our 15 years of global chemical supply experience:

1. Verify compliance certifications first

Confirm that your supplier can provide third-party test reports and market-specific compliance documents, such as REACH registration for the EU and TSCA certification for North America. In practice, uncertified Diethylisopropanolamine often leads to customs delays and non-compliance fines.

2. Test a production sample before bulk ordering

Always request a 1-5L sample to test in your own production line before placing a large order. We have found that this step catches performance gaps that may not be visible on standard paper test reports.

3. Confirm supply capacity and lead time

Check that the supplier can meet your annual volume demand and maintain consistent lead times for long-term contracts. At Runchang International, we maintain a 30-day safety stock of industrial grade Diethylisopropanolamine to avoid delivery delays for global customers.

Safety Handling & Storage of Diethylisopropanolamine

While Diethylisopropanolamine is classified as low-toxicity, proper handling and storage are required to avoid unnecessary safety risks. The 2026 International Labour Organization (ILO) chemical safety guidelines note that DEIPA can cause mild skin and eye irritation with direct prolonged exposure.

Q: What storage conditions are required for DEIPA?

A: Diethylisopropanolamine should be stored in a cool, dry, well-ventilated area, away from direct sunlight and strong acids. Sealed original packaging keeps DEIPA usable for up to 12 months from the production date. We recommend avoiding storage temperatures above 40°C to prevent product degradation.

Frequently Asked Questions

Q: What is the typical shelf life of Diethylisopropanolamine?

A: When stored in sealed original packaging in cool, dry conditions, industrial grade Diethylisopropanolamine has a shelf life of 12 months from the production date. We recommend testing product purity before use if it has been stored longer than 12 months.

Q: Can Runchang International supply bulk Diethylisopropanolamine for global shipment?

A: Yes, Runchang International (www.runchangguoji.com) supplies both small sample orders and bulk quantities of high-purity Diethylisopropanolamine to global customers. We provide full compliance documentation and flexible shipping options to meet different customer needs.

Q: Is Diethylisopropanolamine safe for use in cosmetic products?

A: Cosmetic grade Diethylisopropanolamine that meets international purity standards is considered safe for use in cosmetic formulations in regulated concentrations. Always confirm the product grade and purity with your supplier before use in personal care products.

Q: What is the price of Diethylisopropanolamine in 2026?

A: 2026 Diethylisopropanolamine prices vary based on order volume, purity grade, and shipping destination. Contact a reliable supplier like Runchang International for a customized quote based on your specific requirements.

This article was generated by AI and is for reference only.

Key words:

Diethylisopropanolamine