Best Heptafluorobutyric Acid CAS 375-22-4

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Heptafluorobutyric Acid

Products Description

Name: Heptafluorobutyric Acid

Cas: 375-22-4

Purity: 99%min


Basic Info:

CAS No.:






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Brand Name

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Product Introduction:

Heptafluorobutyric acid, also known as perfluorobutyric acid, is a colorless liquid at room temperature, smells like butyric acid, has strong acidity and is corrosive.

Heptafluorobutyric Acid is sensitive to light, easily hygroscopic, strongly acidic, miscible with water, acetone, ether and petroleum ether, soluble in benzene and carbon tetrachloride, insoluble in carbon disulfide, mineral oil and heptane.

Heptafluorobutyric Acid has stable properties and can undergo salt formation reaction, esterification reaction, substitution reaction, dehydration reaction and reduction reaction of alcohol hydroxyl group.

The industrial preparation of perfluorobutyric acid adopts the electrochemical fluorination method, with butyryl chloride as the starting material, electrolytic fluorination reaction with anhydrous hydrogen fluoride, and the anode product is neutralized and acidified to obtain the product (reference data).

Product Nature:

  • Density: 1.645 g/mL at 25 °C(lit.)
  • Boiling point: 120 °C755 mm Hg(lit.)
  • Melting point: -17.5 °C
  • Flash point: 120-121°C
  • Refractive index: n20/D 1.3(lit.)
  • Water solubility: miscible


Product NameHeptafluorobutyric acid
CAS No.375-22-4
Appearance Colorless transparent liquid
Content99% min
Shelf Life2 years
Packing1kgs/drum,25kgs/drum or as your requirements

Product Usage:

Heptafluorobutyric Acid is mainly used as a surfactant, and can also be used as an insecticide, a catalyst for esters, an acidulant, an organic intermediate and for synthetic rubber.

Perfluorobutyric acid and its derivatives are a kind of chemical intermediates, which can be used as intermediates of new medicine, gunpowder and fragrance.

Heptafluorobutyric Acid can also be used as a raw material or auxiliary for synthesizing new organic polymer materials, and can also be used as an organic solvent by itself.

Perfluorooctanoic acid can be added to polymer molecules as a reagent for providing fluorine-containing groups, and fiber textiles with water and dust resistance can be produced by modifying the polymer.

Heptafluorobutyric Acid can also be used as an ion-pairing reagent for reversed-phase high performance liquid chromatography (RPLC). Generally, 0.1% heptafluorobutyric acid is added to the mobile phase (reference data).

Catalyst activator acidifier that can also be used for the sequential analysis of proteins in organic synthesis of esters


  1. Fluorine Compounds, Organic – Wiley Online Library | 15 June 2000.
  2. Wikipedia


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* Each batch of products will be tested to ensure that its quality meets user needs.

*Packaging can also be made according to customer requirements.

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After-Sales Service

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*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.


1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).

2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).

3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).

4. For high-value products, please choose air or express to ensure the safety of product transportation.


Do you accept sample order?

We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.

How to confirm whether the product quality meets our needs before placing an order?

You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.

What’s your MOQ?

Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.

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Heptafluorobutyric Acid