26423

Zinc stearate

purum, 10-12% Zn basis

• Synonym(s): Stearic acid zinc salt
• Linear Formula: [CH₃(CH₂)₁₆COO]₂Zn
• CAS Number: 557-05-1
• Molecular Weight: 632.33
• Beilstein/REAXYS Number: 3919706
• MDL number: MFCD00013031
• UNSPSC Code: 12352100
• PubChem Substance ID: 57648174
• NACRES: NA.22

Properties

• Quality Level: 100
• grade: purum
• autoignition temp.: 1454 °F
• composition: mixture consisting mainly of palmitate (C16) and stearate (C18) salts, 90% ; stearate salt : Minimum, ~40%
• reaction suitability: core: zinc; reagent type: catalyst
• concentration: 10-12% Zn
• impurities: ≤3.5% free acid (as stearic acid)
• ign. residue: 12-15%
• loss: ≤1% loss on drying, 105 °C
• mp: 128-130 °C (lit.)
• solubility: alcohol: insoluble(lit.); benzene: soluble(lit.); diethyl ether: insoluble(lit.); water: insoluble(lit.)
• SMILES string: CCCCCCCCCCCCCCCCCC(=O)O[Zn]OC(=O)CCCCCCCCCCCCCCCCC
• InChI: 1S/2C18H36O2.Zn/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2*2-17H2,1H3,(H,19,20);/q;;+2/p-2
• InChI key: XOOUIPVCVHRTMJ-UHFFFAOYSA-L

Description

General description

The effect of zinc stearate on mechanical properties and on thermal stability of plastigels obtained from polyvinylchloride and dioctylphthalate plastisols was studied. Zinc stearate decreases the melt viscosity of the ionomeric blend of maleated ethylene-propylene-diene monomers and maleated high-density polyethylene.

Application

Zinc stearate has been used as reinforcing filler and as a plasticizer for the maleated ethylene-propylene-diene rubber.

Safety Information

• pictograms: GHS07,GHS09
• signalword: Warning
• hcodes: H319,H410
• pcodes: P264 - P273 - P280 - P305 + P351 + P338 - P337 + P313 - P391
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• ppe: dust mask type N95 (US), Eyeshields, Gloves