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Zinc Stearate Powder CAS 557-05-1

Molecular Formula: C36H70O4Zn

Formula Weight: 632.33

ZSpharmac: Zinc Stearate Powder Supplier

Product Name: Zinc Stearate Powder
CAS No: 557-05-1
Purity: 99%

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Basic Info

Product Name:Zinc Stearate Powder
Other Names:Zinc Stearate
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:White Powder
EINECS No.:209-151-9
Storage:Room Temperature
Provide:Zinc Stearate Powder MSDS;
Zinc Stearate Powder COA

What is Zinc Stearate Powder?

Zinc stearate is white light excellent powder. Molecular formula ZN(C17H35COO)2, molecular framework RCOOZnOOCR (R is the mixed alkyl team in industrial stearic acid), combustible, specific gravity 1.095, autoignition variable 900 ° C, thickness 1.095, melting point 130 ° C, with an unsafe feel. Insoluble in water, ethanol, ether, soluble in warm ethanol, turpentine, benzene as well as other natural solvents along with acids. Zinc stearate is warmed and liquified in a natural solvent as well as likewise ends up being jelly when it is cooled, as well as additionally disintegrates into stearic acid as well as additionally the comparable zinc salt when it is met with solid acid. Lubricant, hygroscopic, secure, a little troublesome, non-polluting, as well as also non-hazardous. Zinc stearate along with calcium stearate can be split by taking advantage of the residence that zinc stearate is soluble in benzene yet calcium stearate is insoluble in benzene.

Zinc stearate is insoluble in polar solvents, however is very soluble in fragrant compounds as well as also chlorinated hydrocarbons when heated up. Their primary area of application is the plastics as well as likewise rubber market, where they are used as launch representatives as well as lubricants because of their superb compatibility.

Zinc Stearate Powder Property

Melting point 128-130 °C (lit.)
Boiling point 240℃[at 101 325 Pa]
density 1.095g/cm3
vapor pressure 0Pa at 25℃
Fp 180℃
storage temp. Inert atmosphere,Room Temperature
solubility alcohol: insoluble(lit.)
form Powder
color White
Odorwh. powd., faint char. odor
Water Solubility Insoluble


Zinc Stearate Powder Uses

  1. Zinc Stearate Powder is utilized as a softening lube for rubber things, a brightening representative for fabrics, as well as a stabilizer for PVC plastics.
  2. Zinc Stearate Powder is made use of as a stabilizer for PVC plastic items as well as a conditioner for rubber things.
  3. Zinc Stearate Powder is taken advantage of in the pharmaceutical market, in the formula of healing oils as well as lubes, along with similarly as a paint drier. It is utilized in the handling of PVC as well as likewise rubber risk-free items. It has a synergistic result with calcium stearate and additionally barium stearate, which can effectively boost the light as well as cozy security of PVC along with rubber products. The amount made use of in PVC handling is usually <1 component; utilized for rubber Product touch agent, furthermore used in the manufacture of PP, PE, PS, EPS polymerization components and additionally pencil lead, the fundamental dosage is 1 ~ 3 components.
  4. Zinc Stearate Powder is made use of as a dispersant as well as also warmth stabilizer for polyethylene, polystyrene, polyvinyl chloride and likewise top-quality chemical fiber masterbatches in the petrochemical sector. Made use of in color masterbatch (granule) as warmth stabilizer, dispersant in addition to lubricating substance.

Application of Zinc Stearate Powder

1. The family member density of Zinc Stearate Powder is 1, 05-1.10. It is generally used as active representative and also dusting powder. It can also be made use of as mold and mildew launch lube, plasticizer and also softener. It appropriates for all-natural rubber, artificial rubber and latex. When used as an energetic agent, it can activate the acid kind and also improve the handling performance. It can be sprayed externally of the product or in the mold and mildew tooth cavity as a cleaning powder, or it can be made right into a liquid dispersion as well as coated on the surface of the product or the design to stop the movie from sticking.

2. Zinc Stearate Powder is normally made use of as a melting representative in rubber as well as is seldom used as an energetic representative because it has a really tiny solubility with rubber as well as is very easy to spray on the surface, however it is often utilized in peroxide foaming products such as EVA. It is utilized as a supporting frothing representative, that is, an energetic agent.

3. Zinc Stearate Powder, an acidic filler energetic agent, is just active on acidic fillers, and also can likewise be made use of as a release agent, with a reasonably small cost. It feels good as an internal touch launch representative, as well as its performance is very secure.

4. Zinc Stearate Powder, typically utilized as a launch agent. When mixing neoprene and also chlorosulfonated polyethylene rubber, it is an excellent lube, which can dramatically decrease the occurrence of sticking rollers. The general dosage is 1– 2%, which is secure, and it is very easy to spray out if it is excessive. Additionally, it has the impact of decreasing the surface area gloss of rubber items, that is, it has a specific matting impact. It also has another function. Including 1– 2% during blending can dramatically enhance the fluidity of the rubber compound, that is, the internally included rubber fluidity improver, which can considerably reduce the lack of defective items in the production of film-pressed items. happen.

5. There is a kind of Zinc Stearate Powder, which is paste-like and also can be made use of as an anti-adhesive representative for raw silica gel (as a matter of fact, it is all semi-finished items of mixed rubber), which has a special impact. That is, prior to reducing the raw silica gel strips with a blade, you can place the pasty zinc stearate (a little) into a suitable amount of tap water, and after that blow and also mix it with a steam pipe (due to the fact that zinc stearate is insoluble in water). You can after that place the cut strips of raw glue in water and take them out today without staying with each other at all. You can likewise put this water into the sprayer, and also cut while spraying the glue, which is great.

Preparation of Zinc Stearate Powder

Record one
S1: Take tristearin, stir while feeding, keep the temperature level at 100 ° C, include energizer A, antioxidant as well as water after the tristearin is completely thawed, at a temperature of 135 ° C and additionally a stress and anxiety of 0.7 MPa Accomplish hydrolysis feedback under the trouble of problem, hydrolyzate delays 45min, oil and water are separated, and likewise oil stage stress filtration redeems stimulant as well as additionally rapidly gets stearic acid;

Wherein, in regards to mass proportion, in chauffeur A, zinc oxide: Al2O3-MgO is 1: 6, as well as also its intake is 4% of the high quality of glyceryl tristearate, as well as also Al2O3-MgO is prepared by rainfall method, in addition to in molar proportion, Al2O3: MgO is 2.5:1;

In regards to mass percentage, in anti-oxidants, antioxidant 1076: antioxidant DLTDP: antioxidant T501 is 0.12: 0.38: 1, and its intake is 0.5% of tristearin top quality;

By mass proportion, glyceryl tristearate: water is 1: 0.45;

S2: Include the stearic acid in S1 right into the zinc stearate feedback pot, maintain the temperature level at 110 ° C, include zinc oxide with 9% mass of tristearin while blending, after feeding, the temperature level of the material rises to 120 ° C, include driver B with 3% glyceryl tristearate mass, as well as additionally stir for thirty minutes;

Wherein, energizer B is the blend of hydrogen peroxide and zinc peroxide, by mass percentage, hydrogen peroxide: zinc peroxide is 4: 1;
S3: Include zinc oxide with 3.8% tristearin mass and also energizer B with 2% tristearin mass, respond at a temperature of 130 ° C, stop mixing, as well as the foam of the product goes down to the balance factor, include chauffeur B with 0.5% tristearin mass, and react at a temperature level of 150 ° C. for 20 mins;

S4: Include salt hydroxide of 0.25% by mass of glyceryl tristearate while mixing, and respond at regular temperature level for half an hour;

S5: Turn on the air pump, readjust the vacuum degree to -0.08 MPa, dry out, as well as respond stably for 60 mins under consistent temperature level as well as likewise regular stress conditions, the response is terminated, sampling and also testing, spraying powder after passing the examination, packaging and additionally storage space, to obtain zinc stearate, the return is 94.87%.

Record two,
A prep work method of mass zinc stearate, a, under regular stress, 1400g stearic acid is dropped into an activator as well as heated to 130-160 ° C. After including stimulant hydrogen peroxide 70g and also zinc oxide 220g, the response is liquified state for 90 mins; B, add antioxidant 5g and mix for 5-20 minutes; c, add in the mold and mildew that is positioned the polyethylene mesh skeletal system in the liquified zinc stearate that step b makes; D, make the needed shape after cooling Zinc stearate in swellings.

Report three
A kind of manufacturing approach of zinc stearate, described zinc stearate is prepared by the response of each element of complying with components by weight: 800-1200 parts of stearic acid, 140-170 parts of zinc oxide, 5-15 parts of stimulant, 50-70 parts of deionized water;

The manufacturing approach of zinc stearate, consists of the adhering to steps:
( 1) Place 800-1200 parts of stearic acid and also 140-170 parts of zinc oxide into the reactor, heat up to 57-65 ° C, begin mixing, after mixing for 8-15 minutes, add 5-15 parts of stimulant and also 50-70 parts of deionized water, cover the cover of the reaction pot, and also remain to heat up for the reaction;

( 2) Beginning the reaction when the temperature level in the reactor rises to 75-80 ° C, stop heating when the temperature remains to rise to 93-98 ° C, maintain the temperature secure, react for 18-25min until the pressure in the activator rises to 2-2.5 kg f/ cm2, open the exhaust valve of the activator to exhaust;

( 3) After the exhaust is finished, open up the cover of the kettle. At this time, the response product changes from liquid to powdery solid, and also the response is completed;

( 4) Release the reacted product from the response kettle, and also obtain the item with the crushing process.

Drivers consist of acetic acid, hydrogen peroxide, potassium hydroxide solution, and also ammonia.

About Products:
If you need Zinc Stearate Powder as a cosmetic raw material, please contact our service staff directly, we will provide you with high-quality products at the best price.
As an experienced Zinc Stearate Powder manufacturer and supplier, ZSpharmac will provide Zinc Stearate Powder raw materials to 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.

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