Stearic acid
Products Category
Tag list
- Description
-
Key characteristics
Physical State: Fine white powders or granular solids.
Key Properties: Lubricity, thermal stability, hydrophobicity, and emulsifying capacity.
Safety: Generally non-toxic, compliant with food-grade (e.g., GB 9685-2016) and pharmaceutical standards (USP/EP).
Main product series and technical parameters
1. Calcium Stearate
Formula: Ca(C₁₇H₃₅COO)₂
Specs: Calcium content 6.4–7.4%, melting point 150–160°C.
Applications:
Plastics: Internal/external lubricant for PVC pipes and films, reducing melt viscosity.
Food Packaging: Anti-blocking agent in PE cling film (0.8–1.2% dosage).
Pharmaceuticals: Tablet lubricant enhancing powder flow.
2. Zinc Stearate
Formula: Zn(C₁₇H₃₅COO)₂
Specs: Zinc content 10.3–11.3%, melting point 118–128°C.
Applications:
Rubber: Vulcanization activator for seals and conveyor belts.
Cosmetics: Mattifying agent in foundations and powders.
Coatings: Prevents pigment settling in paints.
3. Magnesium Stearate
Formula: Mg(C₁₇H₃₅COO)₂
Specs: Magnesium content 4–5%, insoluble in water.
Applications:
Pharma: Primary tablet/capsule lubricant (e.g., in drug formulations).
Food: Anti-caking agent in powdered products.
Core application areas
1. Plastic and rubber industry
Function: Acts as stabilizer, mold-release agent, and flow enhancer.
Example: Calcium stearate in PVC window profiles reduces die buildup.
Innovation: Zinc stearate in ABS resin boosts extrusion speed by 15%.
2. Medicine and food
Tableting: Magnesium stearate ensures uniform drug dispersion.
Food Safety: Calcium stearate prevents adhesion in baking molds.
3. Cosmetics
Emulsification: Stearates stabilize creams (e.g., cold creams) via water-in-oil systems.
Texture Enhancement: Zinc stearate provides silky feel in compact powders.
Package: 25kg/bag
Stearic acid
Products Category
Tag list
Inquire Now
Please enter your contact information and we will get in touch with you as soon as possible