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Zhishang Chemical

Stearyl Alcohol CAS 112-92-5

Molecular Formula: C18H38O

Formula Weight: 270.49

ZSpharmac: Stearyl Alcohol Raw Material Supplier

Product Name: Stearyl Alcohol
CAS No: 112-92-5
Purity: 99%

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Basic Info

Product Name:Stearyl Alcohol
Other Names:1-Octadecanol
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:White Flakes
EINECS No.:204-017-6
Provide:Stearyl Alcohol MSDS;
Stearyl Alcohol. COA

What is Stearyl Alcohol?

Stearyl alcohol, likewise described as stearyl alcohol, is a tiny white waxy crystal with a scent. The loved one density is 0.8124 (59/4 ℃), the melting point is 59 ℃, and the boiling point is 210.5 ℃ (15 × 133.322 ). Insoluble in water, soluble in ethanol, ether and acetone. It can go through sulfonation reaction with focused sulfuric acid, yet has no chemical result when subjected to alkali. Currently, stearyl alcohol is produced industrially by using stearic acid or methyl stearate as basic materials and taking advantage of Cu-based stimulants for hydrogenation. Heptadecene section can additionally be gotten by handling the polymerization of ethylene under the activity of alkyl aluminum., and after that get octadecyl alcohol via oxo synthesis. Stimulants based upon Cu-Cr are very polluting and have high reaction demands. For that reason, lately, scholars have in fact continued to research Cu-based drivers.

Stearyl Alcohol Property

Melting point 56-59 °C (lit.)
Boiling point 210 °C15 mm Hg
density 0.812 g/mL at 25 °C (lit.)
vapor density 9.3 (vs air)
vapor pressure <0.01 mm Hg ( 38 °C)
refractive index 1.4356 (estimate)
Fp 185°C
storage temp. 2-8°C
solubility methanol: soluble10mg/mL, clear, colorless
form Flakes
Specific Gravity0.812
color White
Odorwh. unctuous flakes or gran., faint odor, bland taste
explosive limit~8%
Water Solubility insoluble


Stearyl Alcohol App

As a vital fatty alcohol, Stearyl Alcohol is widely utilized in chemical study, everyday chemicals, fabrics, printing and dyeing, medicine, cosmetics and other sectors. It is a resources for producing plastic additives, surfactants, emulsifiers and numerous ingredients.

1. Prepare Stearyl Alcohol polyoxyethylene ether.
Stearyl alcohol polyoxyethylene ether is a good dye leveling representative with outstanding emulsification and leveling properties, excellent cozy thickness and biodegradability. The product is nonionic in alkaline and neutral media, and cationic in acidic media. It can be made use of as a leveling representative for acidic complex dyes to minimize the amount of sulfuric acid in the color bathroom and reduce solid damages to materials. It can also be used as a leveling agent for neutral dyes and vat dyes, and as a removing representative for woollen and nylon fabrics.

The prep work technique utilizes Stearyl Alcohol and ethylene oxide as resources and accomplishes polymerization reaction in the visibility of a catalyst; the weight ratio of the stearyl alcohol and ethylene oxide is 1:0.145 ~ 3.05; the driver is strong methanol Any one or a blend of greater than one salt, salt methoxide methanol service, KOH, NaOH, and so on, is included a quantity of 0.05 to 0.6% by weight of the ready stearyl polyoxyethylene ether. The above technique fairly figures out the raw material ratio, driver dosage, polymerization response temperature level, time and various other process specifications and problems. The reaction problems are light, easy to regulate, and have reduced tools needs. The gotten stearyl polyoxyethylene ether has light shade and stable performance. The variety of flexible molecular weight is huge, and the dye leveling representative product with the called for efficiency can be obtained by changing the molecular weight, which can meet the needs of different celebrations.

2. Preparation of maleic anhydride reactive emulsifier.
It includes the adhering to actions: first prepare an epoxypropyltrimethylammonium chloride intermediate, mix epichlorohydrin and trimethylamine, and respond at 25-30 ° C for 4-5 hours to prepare epoxypropyltrimethylammonium chloride. Ammonium chloride intermediate; prepare stearyl maleic anhydride intermediate, mix maleic anhydride and stearyl alcohol, and respond at 70-75 ° C for 3 to 4 hours to prepare stearyl maleic anhydride. Intermediate; warmth the stearyl maleic anhydride intermediate ready over to 110-115 ° C, and slowly add the epoxypropyltrimethylammonium chloride intermediate to the stearyl maleic anhydride intermediate., regulate the enhancement time to 3 to 5 hours, and begin to warm up after the addition is finished. When the product temperature level reaches 120 ° C, the temperature level is maintained continuous for 1 hour to obtain a maleic anhydride-type reactive emulsifier.

3. Prep work of stearyl acrylate.
First include a polymerization prevention of 0.3 ~ 0.8% of stearyl alcohol to Stearyl Alcohol, warmth it to entirely dissolve it, and afterwards include 1.2 ~ 1.5 times the molar quantity of stearyl alcohol to acrylic acid and 0.5 ~ 1.2% of stearyl alcohol. Driver, mix and blend; warm the blend to 60 ~ 120 ℃, reflux for 2 ~ 3 hours, different the water created by the reaction, remain to raise the temperature to 130 ~ 140 ℃, maintain the response for 2 ~ 4 hours, and boil down under decreased stress to remove the unreacted components. of acrylic acid and recurring water, and then wash the response product with a caustic antacids aqueous option, and then wash it with water until neutral; ultimately, vacuum cleaner dry it at 40 ° C for 6 to 8 hours to get waxy solid stearyl acrylate.

Today development has the advantages of fast reaction price, high reaction selectivity, brief response time, high ester yield, and easy release of item water. It does not make use of an entrainer and prevents major contamination issues caused by hazardous solvents. It belongs to Clean manufacturing procedure.

Stearyl Alcohol Preparation

Approach 1: The Cu-Al-Ba driver prepared by co-precipitation approach has high task and selectivity for the liquid-phase catalytic hydrogenation of methyl stearate to prepare stearyl alcohol. Stimulants prepared by countercurrent co-precipitation, treated with natural solvents and then dried have smaller CuO crystal grains, which is beneficial to enhancing catalytic task.

The synthesis procedure problems are: making use of the countercurrent co-precipitation technique, the stimulant is prepared by drying out after therapy with organic solvents, the decrease temperature level is 250 ~ 400 ° C, w( catalyst) = 3%, the reaction pressure is 6MPa, the reaction temperature is 240 ° C, and the response time is 5 hours., under this procedure condition, the conversion rate of methyl stearate is 998%, and the selectivity of stearyl alcohol is 96.6%. Deal with methyl stearate with 0.02 mol/L sodium hydroxide, let it stand for splitting up, get rid of the water layer, and afterwards dry the acquired methyl stearate at 80 ° C. The objective is to reduce the acid worth and decrease the influence of residual stearic acid on the security of the stimulant. The response formula is as complies with:

Methyl stearate is hydrogenated and lowered under the action of a catalyst to produce stearyl alcohol and methanol. The response formula is as follows:

Side reaction: Hydrodecarboxylation of methyl stearate generates heptadecane:

When stearyl alcohol is created, stearyl alcohol is further hydrogenated under the action of Cu driver to produce octadecane.

Technique 2: An approach for preparing stearyl alcohol via hydrodeoxygenation conversion of stearic acid. Stearic acid, n-heptane and Ni/m-ZrO 2 catalyst are contributed to a high-pressure reactor, where the mass of stearic acid and n-heptane/ The volume ratio is 0.4/ 100 (g/ml), H2 is billed, and the reaction is mixed at 240 ° C and the rotation rate is 1000r/min. The mass of stearic acid is 0.4 g, and the volume of n-heptane is 100 mL. The active element of the catalyst is Ni, the provider is highly malfunctioning monoclinic stage nano-ZrO2, and the specific surface area is 50-150m2/ g. The loading of driver Ni is 3%, the catalyst mass is 8-10% of the stearic acid mass, preferably 0.036 g, and the H2 pressure is 5.5 MPa.

Contact Us

About Products:
If you need Stearyl Alcohol as 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 Stearyl Alcohol manufacturer and supplier, our company, ZSpharmac will provide Stearyl Alcohol raw materials to customers around the world for a long time.
Over the years, the company has adhered to the spirit of “integrity management, strict quality control, and customer first” and has won unanimous praise from customers at home and abroad.

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.

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