Keywords: n-Hexane, n-Heptane, Isohexane, CAS Number, HS Code, UN Number, Applications, Chemical Properties, Industrial Use

Abstract

This article provides a comparative analysis of n-Hexane, n-Heptane, and Isohexane in terms of their CAS numbers, HS codes, UN numbers, and practical applications. These hydrocarbons play crucial roles in industrial solvents, fuel additives, and chemical synthesis. Understanding their regulatory classifications and primary uses enables better decision-making in logistics, trade, and compliance.

Introduction

n-Hexane, n-Heptane, and Isohexane are key hydrocarbons used in various industrial applications, particularly in solvent extraction, chemical synthesis, and fuel formulation. While they share similar structures, their distinct properties define their applications and regulatory classifications.

Chemical Identifiers and Classification

Each compound has a unique CAS number, which serves as an international identifier in chemical databases. Their HS codes categorize them for international trade purposes, ensuring standardized tariffs and trade policies. The UN numbers indicate transportation hazards and are used for classifying hazardous materials under shipping regulations.

Applications

1. n-Hexane

• Widely used as a solvent in industrial processes such as oil extraction, adhesives, and coatings.
• Commonly found in degreasing agents due to its strong solvency properties.
• Frequently used in laboratory settings for chromatography and chemical synthesis.

2. n-Heptane

• Applied in octane rating determination for fuels, particularly in gasoline standardization.
• Used as a non-polar solvent in chemical and pharmaceutical industries.
• Functions as a cleaning agent for electronics and specialized machinery.

3. Isohexane

• Primarily utilized in gasoline blending as a high-performance fuel component.
• Used in polymer manufacturing and synthetic rubber production.
• Commonly found in formulations requiring controlled volatility characteristics.

Conclusion

n-Hexane, n-Heptane, and Isohexane serve distinct roles in industrial applications, yet share common classifications for trade and regulatory purposes. Understanding their CAS numbers, HS codes, and UN numbers aids in navigating logistics and compliance requirements efficiently. The diverse applications of these hydrocarbons reinforce their significance in industries such as fuel refining, chemical processing, and manufacturing.

Price chart of Isohexane,99% and n-Heptane, 99% in the Chinese market in the last three months, updated on April 20

April 20, 2023 USD TO CNY TODAY

Actual USD to CNY exchange rate equal to 6.8661 Chinese Yuans per 1 Dollar.

Junyuan High Purity solvent is a range of high purity hydrocarbon solvents with many uses including:

Adhesives
Tyres
Rubber
Cleaning products
Paints
Coatings
Pharmaceuticals

What are solvents for adhesives used for?

Solvents for adhesives are used to dissolve binders and polymers, making them stronger-bonding and easier to apply. Manufacturers across the automotive, wood and timber, furnishing, leather and footwear, packaging, construction and electronics industries use this type of solvent to make their finished products.

How to Comply with Chemicals Control Act (CCA) in Korea

If you export a chemical product to South Korea, you not only need to comply with K-REACH, but also need to comply with Korean Chemicals Control Act (CCA). The CCA (previously toxic chemicals control act or TCCA) passed national assembly in May in 2013 and it comes into force in Jan 2015. It is a new law focusing on chemical reporting and chemical accident prevention. In this article, we will summarize the major obligations of chemical manufacturers and importers under CCA and how to prepare a letter of confirmation for CCA.

Obligations of Chemical Manufacturers and Importers

While CCA has also set out many obligations for government bodies, we will only focus on how to comply with CCA from an industry perspective and how to prepare the confirmation of chemicals under article 9.

Scope of CCA

The CCA does not apply to:

1. Radioactive substances;
2. Medicines and non-pharmaceutical of the Pharmaceutical Affairs Act;
3. Narcotics under subparagraph 1 of Article 2 of the Act on the Control of Narcotics, etc.;
4. Cosmetics and raw materials used for cosmetics under subparagraph 1 of Article 2 of the Cosmetics Act;
5. Pesticides and technical ingredients under subparagraphs 1 and 3 of Article 2 of the Pesticide Control Act;
6. Fertilizers under subparagraph 1 of Article 2 of the Fertilizer Control Act;
7. Foods, food additives, appliances, containers, and packages under subparagraphs 1, 2, 4, and 5 of Article 2 of the Food Sanitation Act;
8. Livestock feed under subparagraph 1 of Article 2 of the Control of Livestock and Fish Feed Act;
9. Explosives under Article 2 (3) of the Control of Firearms, Knives, Swords, Explosives, etc. Act;
10. Military supplies (excluding conventional items) under Article the Act on the Management of Military Supplies;
11. Functional health foods under subparagraph 1 of Article 3 of the Functional Health Foods Act;
12. Medical devices under Article 2 (1) of the Medical Devices Act;
13. Toxic gases under the High-Pressure Gas Safety Control Act.

How to Comply with CCA

Firstly, you need to check the regulatory status of all substances in your chemical product, indicate wether your product contains any regulated substance below and submit the details to Korea Chemicals Management Association (KCMA) prior to manufacture or import. 

1. Existing chemical substances subject to registration under K-REACH;
2. New chemical substances under K-REACH;
3. Toxic substances;
4. Substances requiring permission;
5. Restricted substances;
6. Prohibited substances;
7. Substances requiring preparation for accidents.

You can click the following link, input the English name or CAS no. to check the regulatory status of each substance. 

• http://ncis.nier.go.kr/main/Main.jsp

Secondly, you need to get additional approval if your product contains any regulated substance above. If your product contains any new substances or existing substances subject to registration, you need to register them with the national institute of enviromental research (NIER). If your product contains restricted or prohibited substances, you need to obtain prior permission from regional environmental office. If you manufacture or import toxic chemicals, you need to declare its kind and use to the regional environmental office.

Finally, you need to label your products correctly and ensure that your handling facilities meet all criteria or requirements set out in the CCA.

Letter of Confirmation for Manufacture and Importation

Manufacturer or Importer of chemicals shall submit a Written Confirmation of Details for Chemical Product to KCMA after conducting careful self-evaluation. Only one submission is needed for each product. If importers do not know detailed product composition, they could request suppliers to issue a signed confirmation letter confirming whether the product contains any regulated substance. The example of the confirmation letter is given below.

If you do not know how to check the regulatory status of each substance in your product, you could also apply for MoE to issue a confirmation certificate. You need to provide 100% product composition for this application. 

Declaration of Imported Toxic Substances

If you intend to import a toxic substance into South Korea, you must disclose its kind and purpose to Regional Environmental Office.

References

• CHEMICALS CONTROL ACT – English
• ENFORCEMENT RULE OF THE CHEMICALS CONTROL ACT – English

Adhesive techniques are now well-known and are increasingly used in a great variety of applications including the automotive industry, construction and building. These techniques are also of particular interest to the wood/timber, furnishing, leather goods, packaging and electronic industries.

General Information and Properties

Isohexane, a chemical with CAS No. 64742-49-0, falls in the solvents class; this is classified under organic intermediates and compounds. Used as a solvent for multiple industries, drilling fluid additives and organic intermediate, the Isohexane manufactured has a purity of >99%. The product has a boiling point range of 61°C – 65°C, with a distillation range of IBP 61° C and FBP 65° C. The liquid is clear, colourless, and odourless with a molecular weight of 86.

Chemical Properties: Isohexane

CAS Number: 64742-49-0

Appearance: Colourless, Odourless

Boiling Point: 61-65°C

Density: 0.648

Molar Mass: 86

Solubility: 0.02 g/l

Product Name: Isohexane

Manufacturing Process

Isohexanes are obtained by processing the C6 petroleum fraction with hydrogen in the presence of a catalyst. The product is derived from aliphatic sources and hence has low aromatic content.

Industry Applications

Due to its nature and properties, Isohexane is used as a solvent in numerous industries for multiple applications such as coatings, adhesives, oil and gas production, hydraulic fracturing, etc. It is also used as a drilling fluid and a solvent for organic synthesis. Isohexane is used to manufacture glues used for shoes, leather products, roofing, furniture and textile manufacturing.

The uses also cover its application in construction and building materials, adhesives and adhesive removers, arts and crafts office supplies, home maintenance paint-related products, vehicle body, engine maintenance auto fluids additives and engine maintenance motor oil.

Used for its lubricative properties, this petroleum-based chemical product is widely preferred in numerous sectors across industries.

Isohexane is an organic compound, is colorless liquid, can be mixed and dissolved with acetone, benzene, chloroform, heptane, is soluble in ethanol and ether, is insoluble in water, has irritation, is mainly used for solvents for polymerization, cleaning and oil releasing agents of precise instruments and meters, essential oil diluents and the like, is mainly used in the product fields of nontoxic sprays, solvents, cleaning agents and the like, currently, isohexane is produced in partial oil refineries at home, the annual output is more than ten thousand tons, the isohexane is sold to all over the country on the basis of meeting the consumption of the factory, the sales condition is good, and the price is always in the rising trend in recent years due to the low isohexane output and large market demand; at present, industrial isohexane prepared by autonomous production in China is still in a state of short supply and short demand, and most of isohexane used in industrial production depends on import, which is mainly caused by the fact that the existing isohexane preparation processes have overlong production lines and complicated equipment and operation, so that the preparation cost is high, the production efficiency is low, the processes are not suitable for large-scale production, in addition, the ecological environment is greatly polluted, and good economic benefits cannot be brought, so that the invention provides the isohexane preparation process to solve the problems in the prior art.

Junyuan Petroleum Group is one of the leading manufacturers and suppliers of Isohexane (CAS No. 64742-49-0) in the World.

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