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Zhishang Chemical

Stearic Acid Powder CAS 57-11-4

Molecular Formula: C18H36O2

Formula Weight: 284.48

ZSpharmac: Stearic Acid Powder Supplement

Product Name: Stearic Acid Powder
CAS No: 57-11-4
Purity: 99%

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Basic Info

Product Name:Stearic Acid Powder
Other Names:Stearic Acid
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:White Powder
EINECS No.:266-928-5
Storage:Store Below +30°C.
Provide:Stearic Acid Powder MSDS;
Stearic Acid Powder COA

What is Stearic Acid Powder?

Stearic Acid Powder is amongst countless considerable long-chain fats that consist of oils. It exists in animal fats, oils as well as also some veggie oils in the form of glycerides. These oils are hydrolyzed to obtain Stearic Acid Powder.
Stearic Acid Powder is a sort of fat that exists thoroughly in nature. It has the chemical property or industrial homes of basic carboxylic acid. Stearic acid exists in almost all oils as well as additionally fats. The web content of stearic acid is high in animal fats. 24%, the web material of vegetable oil is much less, tea oil is 0.8%, hand oil is 6%, however the web content of chocolate butter is as high as 34%.
There are 2 significant production techniques of commercial stearic acid: fractionation method as well as pushing technique. A decomposer is contributed to the solidified oil, and also later on hydrolyzed to obtain unrefined fatty acid, which wants that cleaned up with water, distilled, and decolorized to get the ended up product. The by-product is glycerol.
Most of domestic manufacturers make use of animal fats for production. Some making approaches may lead to inadequate purification of fatty acids, triggering annoying scents during plastic handling and also heat use. Although these smells are risk-free, they will certainly have particular outcomes on working issues and also the natural surroundings. influences. Most of the imported stearic acid is produced from grease, and likewise the manufacturing procedure is likewise more advanced. The efficiency of stearic acid is steady, the lubricity is great, and likewise the odor is little in application.
Stearic Acid Powder is generally used in the production of stearate, such as salt stearate, magnesium stearate, calcium stearate, lead stearate, lightweight light weight aluminum stearate, cadmium stearate, iron stearate, stearate Potassium acid, and more. The salt or potassium salt of stearic acid is a vital part of soap. The detergency of salt stearate is not as good as that of salt palmitate, yet its presence can increase the solidity of soap.
Using tallow as raw material, it is decomposed by sulfuric acid technique or pressurization technique, as well as also the free of charge fat is removed by water anxiety approach at 30-40 ° C to do away with palmitic acid in addition to oleic acid, as well as after that liquify in ethanol, and also afterwards include barium acetate Or magnesium acetate, stearate is precipitated, along with thin down sulfuric acid is included in totally free stearic acid, which is filtered in addition to recrystallized in ethanol to get pure stearic acid.

Stearic Acid Powder Property

Melting point 

67-72 °C (lit.)

Boiling point 

361 °C (lit.)


0.845 g/cm3

vapor pressure 

1 mm Hg ( 173.7 °C)

refractive index 



>230 °F

storage temp. 

Store below +30°C.


Practically insoluble in water, soluble in ethanol (96 per cent) and in light petroleum (bp: 50-70 °C).


pKa 5.75±0.00(H2O t = 35) (Uncertain)





Specific Gravity

0.84 (80℃)

Water Solubility 

0.1-1 g/100 mL at 23 ºC


Stearic Acid Powder Uses

  1. Stearic Acid Powder is typically made use of in cosmetics, plastic plasticizers, mold and mildew and also mold release agents, stabilizers, surfactants, rubber vulcanization accelerators, water repellants, polishing agents, steel soaps, steel mineral flotation security agents, conditioners, pharmaceuticals in addition to various other organic chemicals. Stearic Acid Powder can additionally be made use of as a solvent for oil-soluble pigments, a pastel slip representative, a wax paper brush, as well as likewise an emulsifier for glycerol stearate.
  2. Stearic Acid Powder is likewise commonly made use of in the manufacture of PVC plastic pipes, sheets, profiles as well as films. It is a warmth stabilizer for PVC with good lubricity and great light and also warm security. Applied in PVC pipes, stearic acid assists prevent “coking” throughout processing, is a reliable warmth stabilizer in PVC movie handling, and prevents staining of completed films triggered by exposure to sunlight.
  3. Stearic Acid Powder has actually become a lubricating, plasticizing as well as maintaining useful additive for filling up and also customizing masterbatches. Stearic acid can successfully improve the layer activation effect of inorganic powder as well as increase the fluidness of the product. When the thaw circulation rate is required to be larger for the material with the outright proportion of not natural powder, appropriately increasing the material of stearic acid can substantially enhance the flow price of the material. Enhance the thaw circulation price of the material. However, the dosage of Stearic Acid Powder in the dental filling and also customized masterbatch also has a restriction worth, which is generally controlled at regarding 1% of the complete mass. Too much addition will certainly create the quality as well as efficiency of plastic items to decline, and also will additionally trigger sticky compounds in mechanical devices such as the die lip setting of plastic product production tools, affecting production efficiency as well as item quality.
  4. Mono- or polyol esters of Stearic Acid Powder can be used as cosmetics, non-ionic surfactants, plasticizers, and so on. Its alkali metal salt is soluble in water and is just one of the major components of soap. Various other metal salts can be made use of as water repellents, lubricating substances, fungicides, paint additives and also polyvinyl chloride stabilizers.

Stearic Acid Powder and its Derivatives

Isostearic acid is a branched-chain methyl fatty acid that is widely distributed in nature. Humans first discovered that the feathers of water birds are coated with waxes containing a high percentage of branched-chain molecules, which are actually branched-chain methyl aliphatic groups (about 2/3 of the total fatty acids) and branched and unbranched methyl groups. Composed of fatty alcohols, it provides protection to waterfowl in all climatic conditions and keeps their feathers in top condition. It was later found that 15% of free Stearic Acid Powder and 1.29% of fatty alcohols were branched in human epidermal lipids. Since the 1980s, the application of isostearic acid and its derivatives in cosmetics has been expanding. In 1981, the US FDA listed 142 new raw materials for cosmetics, 5% of which contained isostearic acid. At present, there are nearly 20 kinds of isostearic acid and its derivatives on the market.
Isostearic acid combines the benefits of Stearic Acid Powder (excellent antioxidant stability) and oleic acid (low freezing point). Except for isostearic acid monoglyceride, isostearic acid and its derivatives are all liquid at room temperature, which alleviates the difficulty of cold emulsification production technology. The emulsion may contain components that deteriorate or decompose at high temperatures, such as Enzymes, plant extracts, vitamins and proteins, etc.
Good emolliency is the outstanding advantage of isostearic acid and its derivatives. Lubricity is generally evaluated on the basis of initial skin application and after-feel. The state of the lipid film left on the skin after use is completely determined by the flow characteristics of the lipid film, such as viscosity, density, speed of moving the film, and friction factor. Therefore, there should be a correlation between perceived lubricity and friction factor.
Good air permeability is another outstanding advantage of isostearic acid and its derivatives. The lipid film they form on the skin is permeable to vapor, oxygen, and carbon dioxide, which is important for maintaining skin physiology.

Production Method of Stearic Acid Powder

Stearic Acid Powder is a sort of fat that exists widely in nature. Mostly all oils as well as fats have Stearic Acid Powder in differing amounts. The content of Stearic Acid Powder is greater in pet fats, such as tallow, up to 24%, and also veggie oils less., tea oil is 0.8%, palm oil is 6%, yet the content of chocolate butter is as high as 34%. There are 2 main manufacturing approaches of commercial stearic acid: fractionation approach and also pressing technique. A decomposer is added to the hardened oil, and afterwards hydrolyzed to get unrefined fatty acid, which is after that washed with water, distilled, as well as decolorized to obtain the ended up product. At the same time spin-off glycerol.

The pressing approach takes animal oil as raw material, hydrolyzes it under the pressure of 1.17-1.47 MPa in the existence of zinc oxide, and then experiences pickling, water washing, purification, air conditioning, coagulation, as well as pressing to eliminate the oleic acid to get the ended up product.

Cottonseed oil, rice bran oil or soybean oil is warmed to boiling under typical pressure in the existence of a hydrolyzing agent, hydrolyzed for 1.5 hrs, and hardened into saturated fatty acids. It uses oleic acid hydrogenation.
The synthetic fat C10 ~ C20 and C18 ~ C20 fractions are acquired by melting, pickling (with 1% sulfuric acid), casting, pushing, melting, pickling, dehydration and crystallization as raw materials.

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: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food 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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