Melting Point Standard 69-71°C
SIAL/77402 - analytical standard
Synonym: Stearic acid; 1-
CAS Number: 57-11-4
Empirical Formula (Hill Notation): C18H36O2
Molecular Weight: 284.48
EC Number: 200-313-4
MDL Number: MFCD00002752
Linear Formula: CH3(CH2)16COOH
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 77402-1G
| application(s) | food and beverages pharmaceutical |
| bp | 361 °C (lit.) |
| format | neat |
| grade | analytical standard |
| InChI | 1S/C18H36O2/c1-2-3-4-5-6- |
| InChI key | QIQXTHQIDYTFRH-UHFFFAOYSA |
| mp | 67-72 °C (lit.) |
| 69-71 °C (±0.3°C) | |
| Quality Level | 100  |
| shelf life | limited shelf life, expiry date on the label |
| SMILES string | CCCCCCCCCCCCCCCCCC(O)=O |
| vapor pressure | 1 mmHg ( 173.7 °C) |
| 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. |
| 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 |
| 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. |
| General description: | This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | nwg |
| Flash Point(F) | 235.4 °F - closed cup |
| Flash Point(C) | 113 °C - closed cup |
| bp | 361 °C (lit.) |
| mp | 67-72 °C (lit.); 69-71 °C (±0.3°C) |
| UNSPSC | 20121904 |