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Merck
CN

26423

Zinc stearate

purum, 10-12% Zn basis

Synonym(s):

Stearic acid zinc salt

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About This Item

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

Key Documents

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Product Name

Zinc stearate, purum, 10-12% Zn basis

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

SMILES string

CCCCCCCCCCCCCCCCCC(=O)O[Zn]OC(=O)CCCCCCCCCCCCCCCCC

InChI key

XOOUIPVCVHRTMJ-UHFFFAOYSA-L

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.)

Quality Level

100

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Application

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

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.

pictograms

Exclamation markEnvironment
GHS07,GHS09

signalword

Warning

hcodes

H319,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN2731
BCCN0510
BCCL3070
BCCL6246
BCCK7902

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Ionic thermoplastic elastomer based on maleated EPDM rubber. I. Effect of zinc stearate.
Datta S, et al.
Journal of Applied Polymer Science, 61(1), 177-186 (1996)
The effect of zinc stearate on melt-processable ionomeric blends based on zinc salts of maleated high-density polyethylene and maleated EPDM rubber.
Antony P and De SK.
Polymer, 40(6), 1487-1493 (1999)
Effect of zinc stearate and/or epoxidized soybean oil on gelation and thermal stability of PVC-DOP plastigels.
Baltacioglu H and Balkose D.
Journal of Applied Polymer Science, 74(10), 2488-2498 (1999)

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