77402
熔点标准品 69-71°C
analytical standard
别名:
硬脂酸, 1-十八碳烷酸, C18:0, NSC 25956, NSC 261168, 十八烷酸
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关于此项目
线性分子式:
CH3(CH2)16COOH
化学文摘社编号:
分子量:
284.48
UNSPSC Code:
20121904
NACRES:
NA.24
PubChem Substance ID:
EC Number:
200-313-4
Beilstein/REAXYS Number:
608585
MDL number:
InChI key
QIQXTHQIDYTFRH-UHFFFAOYSA-N
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)
SMILES string
CCCCCCCCCCCCCCCCCC(O)=O
grade
analytical standard
vapor pressure
1 mmHg ( 173.7 °C)
shelf life
limited shelf life, expiry date on the label
bp
361 °C (lit.)
mp
67-72 °C (lit.), 69-71 °C (±0.3°C)
application(s)
food and beverages
pharmaceutical
format
neat
Quality Level
General description
Melting point standard 69-71 °C, stearic acid is an mp standard, ideal for the routine calibration of melting point apparatus to assure its accuracy, as per local, national and international standards laboratories. The mp value is documented as an average of 6 to 12 iterations using a Büchi B-545 equipment that is calibrated against primary standards. Melting point is ascertained by Capillary method, according to Ph. Eur. 2.2.14.
This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food.
Application
Stearic Acid melting point standard 69-71 °C is a melting point calibration standard, used for determining the identity and purity of chemical substances.
This product also has additional use as a reference standard in thermal property studies.
This product also has additional use as a reference standard in thermal property studies.
Features and Benefits
- Traceable to primary standards from LGC, London
- Grade: Analytical Standard
- Melting point as confirmed in the thermodynamic mode of analysis
- Measured uncertainty up to ± 0.3 °C
- Available with certificates of analysis and safety data sheet
存储类别
11 - Combustible Solids
wgk
nwg
flash_point_f
392.0 °F - Cleveland open cup
flash_point_c
200 °C - Cleveland open cup
ppe
dust mask type N95 (US), Eyeshields, Gloves
In Vitro Starch Digestion and Physicochemical Properties of Maize Starch and Maize Meal Modified by Heat-Moisture Treatment and Stearic Acid
Asare IK, et al.
Starch/Staerke (2021)
Palle J Pedersen et al.
Journal of medicinal chemistry, 53(9), 3782-3792 (2010-04-22)
The design of retinoid phospholipid prodrugs is described based on molecular dynamics simulations and cytotoxicity studies of synthetic retinoid esters. The prodrugs are degradable by secretory phospholipase A(2) IIA and have potential in liposomal drug delivery targeting tumors. We have
Qian Wan et al.
Nanoscale, 5(2), 744-752 (2012-12-12)
As a versatile gene vector, minicircle DNA (mcDNA) has a great potential for gene therapy. However, some serious challenges remain, such as to effectively deliver mcDNA into targeted cells/tissues and to non-invasively monitor the delivery of the mcDNA. Superparamagnetic iron
T A Doran et al.
American journal of obstetrics and gynecology, 133(3), 302-307 (1979-02-01)
Lecithin/sphingomyelin (L/S) ratio, creatinine, percentage of lipid-positive cells, palmitic acid, palmitic acid/stearic acid (P/S) ratio, and total cortisol were analyzed as tests for fetal maturity and fetal pulmonary maturity in 164 samples of amniotic fluid from 121 patients. Fifty samples
A M Turpeinen et al.
Arteriosclerosis, thrombosis, and vascular biology, 18(2), 316-322 (1998-03-04)
The effects of stearic acid (C18:0) and trans-fatty acids (trans-FAs) on measures of platelet function and prostacyclin (PGI2) production are poorly understood in humans. In this controlled dietary study, platelet function and endothelial PGI2 production were studied in healthy humans
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