557-06-2 Usage
Description
(Z)-(octadecanoato-O)(9-octadecenoato-O)zinc, commonly known as zinc stearate, is a chemical compound that serves as a versatile lubricant and releasing agent. It is a white, fine powder that is insoluble in water and ethanol but soluble in hydrocarbons. Zinc stearate is characterized by its ability to improve the manufacturing processes and product formulations across various industries due to its unique properties.
Uses
Used in Plastics Industry:
Zinc stearate is used as a mold release agent for the production of rubber, plastic, and polyurethane products. It facilitates the easy separation of the molded product from the mold, enhancing the efficiency of the manufacturing process.
Used in Pharmaceutical Industry:
In the pharmaceutical sector, zinc stearate is utilized as a lubricant in the production of various types of powders. Its lubricating properties help in the smooth processing and formulation of pharmaceutical products.
Used in Cosmetics Industry:
Zinc stearate is employed as an anti-caking agent in cosmetics and pharmaceuticals. It prevents the caking and clumping of powders, ensuring a consistent and uniform texture in the final product.
Used in Rubber Industry:
As a lubricant, zinc stearate is used in the rubber industry to improve the processing and manufacturing of rubber products. It helps in reducing friction during the production process, leading to a smoother and more efficient manufacturing experience.
Used in Polymers:
Zinc stearate can act as a stabilizer in PVC and other polymers, enhancing their overall performance and durability. It contributes to the stability and longevity of the final product, making it a valuable component in the polymer industry.
Check Digit Verification of cas no
The CAS Registry Mumber 557-06-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,5 and 7 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 557-06:
(5*5)+(4*5)+(3*7)+(2*0)+(1*6)=72
72 % 10 = 2
So 557-06-2 is a valid CAS Registry Number.
557-06-2Relevant articles and documents
Mixed saturated-unsaturated alkyl-chain assemblies: Solid solutions of zinc stearate and zinc oleate
Barman,Vasudevan
, p. 5212 - 5217 (2007)
The linear saturated stearic acid and the bent mono-unsaturated oleic acid do not mix and form solid solutions. However, the zinc salts of these acids can. From X-ray diffraction and DSC measurements we show that the layered zinc stearate and zinc oleate salts form a homogeneous solid solution at all composition ratios. The solid solutions exhibit a single melting endotherm, with the melting temperature varying linearly with composition but with the enthalpy change showing a minimum. By monitoring features in the infrared spectra that are characteristic of the global conformation of the hydrocarbon chain, and hence can distinguish between stearate and oleate chains, it is shown that solid solution formation is realized by the introduction of gauche defects in a fraction of the stearate chains that are then no longer linear. This fraction increases with oleate concentration. It has also been possible from the spectroscopic measurements to establish a quantitative relation between molecular conformational order and the thermodynamic enthalpy of melting of the solid solutions.
