77402
Melting Point Standard 69-71°C
analytical standard
Synonym(s):
Stearic acid, 1-Heptadecanecarboxylic acid, C18:0, Cetylacetic acid, NSC 25956, NSC 261168, Octadecanoic acid, Stearophanic acid
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About This Item
Linear Formula:
CH3(CH2)16COOH
CAS Number:
Molecular Weight:
284.48
UNSPSC Code:
20121904
NACRES:
NA.24
PubChem Substance ID:
EC Number:
200-313-4
Beilstein/REAXYS Number:
608585
MDL number:
grade
analytical standard
Quality Segment
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
SMILES string
CCCCCCCCCCCCCCCCCC(O)=O
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
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
Storage Class
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
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