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N-Heptane CAS 142-82-5

Molecular Formula: C7H16

Formula Weight: 100.2

ZSpharmac: N-Heptane Supplier

Product Name: N-Heptane
CAS No: 142-82-5
Purity: 99%

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Basic Info

Product Name:N-Heptane
Other Names:Heptane
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Colorless Liquid
EINECS No.:205-563-8
Provide:N-Heptane MSDS;
N-Heptane COA

What is N-Heptane?

Colorless flammable fluid. Practically insoluble in water, somewhat soluble in alcohol, soluble in ether and also chloroform. Vapor and also air develop an eruptive blend with an explosion limit of 1.0-6.0% (quantity). Divided from petroleum extracts. The vibration is very terrible when it sheds as well as explodes in the cyndrical tube. It is rated at no octane. Blends in various proportions with * iso-octane (octane number is set as 100) are commonly used as a standard for figuring out the octane number of gasoline.

N-Heptane Property

Melting point −91 °C(lit.)
Boiling point 98 °C(lit.)
density 0.684 g/mL at 20 °C
vapor density 3.5 (vs air)
vapor pressure 40 mm Hg ( 20 °C)
refractive index n20/D 1.397
Fp 30 °F
storage temp. Store at +5°C to +30°C.
solubility acetone: miscible(lit.)
pka>14 (Schwarzenbach et al., 1993)
form Liquid
color ≤10(APHA)
Specific Gravity0.684 (20/4℃)
Relative polarity0.012
Odor Threshold0.67ppm
explosive limit1-7%(V)
Water Solubility practically insoluble


N-Heptane Uses

  1. N-Heptane is largely used as a common along with solvent for resolution of octane number, together with for natural synthesis and likewise prep job of speculative reagents. N-heptane is simply among one of one of the most typically utilized hydrocarbon solvents in industry today. It is made use of as a removal solvent for pet in addition to veggie oils, in addition to for quick-drying rubber adhesives as well as additionally rubber solvents. It is additionally taken advantage of in the manufacture of cosmetics and also as a solvent for cleansing layers, paints, quick-drying inks and also printing press components. Industrial-grade n-heptane is mainly gotten by means of separation of oil portions, as well as additionally its pureness is relatively low.
  2. N-Heptane is used as analytical reagent, fuel engine knock examination requirement, recommendation product for chromatographic examination, and also solvent. The item can advertise the breathing system, along with has an anesthetic effect at high concentrations. Flammable, the limit focus of eruptive mix in air is 1.0-6.0% (quantity).
  3. N-Heptane can be utilized in biochemical research study, healthy and balanced protein sequence analysis. Choice of ozone, triglycerides. Chemical residue evaluation. Spectroscopy, fluorescence assessment. The typical gas for determining the anti-knock performance of fuel.

N-Heptane Preparation

(1) Increase n-heptane, a basic material with a purity of regarding 98%, over the silica gel adsorption column. The specs of the adsorption column are: size 1.5 m, internal size 3.2 centimeters, the quantity of silica gel filled up is 4/5 of the column length, in addition to circulation right into the column by gravity Inside, control the circulation rate of 50mL-80mL/ minutes, make the all-natural solvent fully contact with the silica gel, and also take in the alkane and additionally fragrant hydrocarbon pollutants in it, and also remove the very first effluent (relating to 200-500ml), because the pollutants in the silica gel will absolutely be hauled with the Come out, assess the liquid out.
( 2) Circulation the uncovered n-heptane effluent right into the diatomite adsorption column, the diatomite adsorption column is the same as the silica gel adsorption column, as well as make use of the diatomite adsorption column to contact with the natural solvent, which can take in impurities such as carbonyl substances and also different from them Breaking up, the flow cost is 50mL-80mL/ minutes, and also the absorbance of the outflow examination is close to the index. For the adsorption columns (silica gel, diatomaceous world) utilized in the above 2 steps, the candidate has actually executed numerous examinations. The results disclose that the integrated use both adsorbents has a better impact. After being adsorbed by two-stage adsorption columns, the product of n-heptane is ≥ 99%.
( 3) The n-heptane effluent of step (2) is dried by means of a drying out column, the desiccant in the drying column is anhydrous calcium chloride or calcium hydride, as well as also the moisture material of the drying out effluent is 0.01% to 0.05%, over 0.05% Assuming that the desiccant is filled with water, replace the desiccant prior to drying. After drying with anhydrous calcium chloride or calcium hydride, the water content gets to 0.01% to 0.05%.
( 4) Put the dried effluent right into the reaction pot for adjustment, and likewise utilize electrical house heating to manage the home heating temperature level at 140 ° C to 200 ° C, the temperature degree of the n-heptane fluid in the kettle is 100 ° C to 110 ° C, as well as likewise the temperature level of the result liquid is 98 ° C to 99 ° C; The reflux proportion is 10:5 ~ 8, gradually transform the reflux percentage to 10:12 ~ 15, as well as lastly acquire the chromatographic high quality n-heptane thing; repair according to the figured out process conditions, handle the rectification temperature level and reflux proportion, and additionally remove the previous portion, and prepare The n-heptane created all pleased the chromatographic index demands.
( 5) After passing the test, the ended up item is filteringed system with a 0.45 μm microporous membrane layer, bottled, as well as also conserved under nitrogen protection.

About Products:
If you need N-Heptane, a cosmetic raw material, please contact our service staff directly, and we will provide you with high-quality products at the best price.
As an experienced N-Heptane manufacturer and supplier, ZSpharmac will provide N-Heptane raw materials for customers all over the world for a long time.
Over the years, the company has been adhering to the spirit of “integrity management, strict quality control, customer first”, and has won unanimous praise from domestic and foreign customers.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge 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.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

Get N-Heptane Quotation