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/418/501/product-dating-information-06-25-mk.pdf
8.00673
Stearic acid
for synthesis
Synonym(s):
Stearic acid
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
grade
synthesis grade
Quality Level
assay
≥97% (GC)
form
solid
autoignition temp.
395 °C
potency
>5000 mg/kg LD50, oral (Rat), >5000 mg/kg LD50, skin (Rabbit)
bp
370 °C/1013 hPa
mp
68-70 °C
transition temp
flash point 196 °C
solubility
water: insoluble at 20 °C
bulk density
400‑500 kg/m3
storage temp.
2-30°C
SMILES string
[O-]C(=O)CCCCCCCCCCCCCCCCC.[H+]
InChI
1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20)
InChI key
QIQXTHQIDYTFRH-UHFFFAOYSA-N
Application
- Green Strong Cornstalk Rind-Based Cellulose-PVA Aerogel for Oil Adsorption and Thermal Insulation: This study highlights a novel aerogel incorporating stearic acid for enhanced oil adsorption and thermal insulation properties (X Yi et al., 2024).
- Preparation and characterization of self-aggregating micelles from stearic acid-modified burdock root polysaccharide: Focuses on the development of micelles using stearic acid, exploring their potential in food science and technology (C Zhang et al., 2024).
- A prototype system for the removal of 137Cs from liquid radioactive waste using reverse osmosis membrane: Discusses the use of a stearic acid-modified membrane for improving radioactive waste treatment (M Shaltout et al., 2024).
- Compatibility study of mirtazapine with several excipients used in pharmaceutical dosage forms employing thermal and non-thermal methods: Investigates interactions between stearic acid and pharmaceutical excipients, indicating possible concerns for drug formulation (D Circioban et al., 2024).
Analysis Note
Melting range (lower value): ≥ 68 °C
Melting range (upper value): ≤ 70 °C
Identity (IR): passes test
1 of 1
This Item | |||
|---|---|---|---|
| grade synthesis grade | grade reagent grade | grade certified reference material, pharmaceutical secondary standard | grade certified reference material, TraceCERT® |
| assay ≥97% (GC) | assay 95% | assay - | assay - |
| Quality Level 200 | Quality Level 200 | Quality Level 300 | Quality Level 300 |
| form solid | form powder or flakes | form - | form - |
| solubility water: insoluble at 20 °C | solubility - | solubility - | solubility - |
| storage temp. 2-30°C | storage temp. - | storage temp. 2-30°C | storage temp. - |
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Storage Class
11 - Combustible Solids
wgk
nwg
flash_point_f
392.0 °F - Cleveland open cup
flash_point_c
200 °C - Cleveland open cup
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 8006731000 | 04022536361727 |
| 8006739050 | 04022536774503 |
| 8006730500 | 04022536361710 |
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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