01422

Melting point standard 79.5-81°C

analytical standard

• Synonyme(s) : Naphthalene
• Formule empirique (notation de Hill): C₁₀H₈
• Numéro CAS: 91-20-3
• Poids moléculaire : 128.17
• Beilstein: 1421310
• Numéro CE : 202-049-5
• Numéro MDL: MFCD00001742
• Code UNSPSC : 20121904
• ID de substance PubChem : 329747268
• Nomenclature NACRES : NA.24

Propriétés

• Qualité: analytical standard
• Niveau de qualité: 100
• Densité de vapeur: 4.4 (vs air)
• Pression de vapeur: 0.03 mmHg ( 25 °C)
• Température d'inflammation spontanée: 978 °F
• Durée de conservation: limited shelf life, expiry date on the label
• Limite d'explosivité: 5.9 %
• pb: 218 °C (lit.)
• Pf: 79-81 °C (±0.3°C); 80-82 °C (lit.)
• Application(s): food and beverages; pharmaceutical
• Chaîne SMILES: c1ccc2ccccc2c1
• InChI: 1S/C10H8/c1-2-6-10-8-4-3-7-9(10)5-1/h1-8H
• Clé InChI: UFWIBTONFRDIAS-UHFFFAOYSA-N

Description

Description générale

Melting point standard 79-81 °C, naphthalene is a non-polar hydrocarbon for use in the characterization of pure chemicals and pharmaceutical compounds. The melting point value is determined with an average of 6 to 12 measurements using a Büchi B-545 instrument that is calibrated against primary standards.

Application

Naphthalene melting point standard 79-81 °C is an analytical standard used to calibrate melting point instruments, operating in the thermodynamic mode of analysis. It′s also applicable in R&D labs for chemical quality control (QC) and quality assurance (QA) to identify solid crystalline substances and to check their purity.
Additionally, this mp standard is also used as a temperature calibration standard in thermal studies.

Caractéristiques et avantages

• Melting point calibration standard traceable to primary standards (LGC, London)
• Grade: Analytical Standard
• Standard deviation up to ± 0.3 °C
• Provided with certificates of analysis and safety data sheet

Informations sur la sécurité

• Pictogrammes: GHS02,GHS08,GHS07,GHS09
• Mention d'avertissement: Warning
• Mentions de danger: H228,H302,H351,H410
• Conseils de prudence: P202 - P210 - P240 - P273 - P301 + P312 - P308 + P313
• Classification des risques: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Flam. Sol. 2
• Code de la classe de stockage: 4.1B - Flammable solid hazardous materials
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): 173.3 °F - closed cup
• Point d'éclair (°C): 78.5 °C - closed cup
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges