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307564

Sigma-Aldrich

Zinc stearate

technical grade

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
Beilstein:
3919706
MDL number:
MFCD00013031
UNSPSC Code:
12352100
PubChem Substance ID:
24858605
NACRES:
NA.22
Pricing and availability is not currently available.

grade

technical grade

form

powder

autoignition temp.

1454 °F

composition

mixture consisting mainly of palmitate (C16) and stearate (C18) salts, 90%
stearate salt : Minimum, ~40% GC

mp

128-130 °C (lit.)
128-130 °C

SMILES string

CCCCCCCCCCCCCCCCCC(=O)O[Zn]OC(=O)CCCCCCCCCCCCCCCCC
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
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
XOOUIPVCVHRTMJ-UHFFFAOYSA-L

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General description

The thermal decomposition of zinc stearate was studied[1].

Application

Zinc stearate was used as a reference compound to study the infrared spectra of a colloidal stearate-capped ZnO catalyst substrate for analysing gas adsorption on a colloidal stearate-capped zinc oxide (ZnO) surface[2]. It was also used to prepare the sample suspension injection required for improving the therapeutic treatment for periodontitis[3].

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H319,H410

Hazard Classifications

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM4006
BCCL2617
BCCJ4264
BCCK1071
BCCK3688

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Ian P Silverwood et al.
Applied spectroscopy, 68(1), 88-94 (2014-01-11)
Attenuated total reflection Fourier transform infrared (ATR FT-IR) spectroscopy has been applied in situ to study gas adsorption on a colloidal stearate-capped zinc oxide (ZnO) surface. Infrared spectra of a colloidal stearate-capped ZnO catalyst substrate were assigned at room temperature
Enrico Della Gaspera et al.
Journal of the American Chemical Society, 135(9), 3439-3448 (2013-02-12)
We present a new colloidal synthesis of gallium-doped zinc oxide nanocrystals that are transparent in the visible and absorb in the near-infrared. Thermal decomposition of zinc stearate and gallium nitrate after hot injection of the precursors in a mixture of
Yoshihiro Tokudome et al.
Biological & pharmaceutical bulletin, 35(9), 1496-1501 (2012-09-15)
The purpose of this research is improvement of therapeutic treatment for periodontitis by using lipophilic and/or hydrophilic zinc materials. The sample suspension injections were prepared from zinc octanate (C8Zn), zinc stearate (C18Zn), zinc sulfate hepta-hydrate (ZnSO4) and tricalcium phosphate (ZnTCP)

Questions

1–3 of 3 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. Is this cosmetic grade. Can Zinc stearate - pure grade powder 557-05-1 be used to make cosmetic face powder? Thank you.

    1 answer

    1. This product is intended for research use only. It is not suitable for use in the cosmetic industry. Currently, there is no zinc stearate product available that would be suitable.

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