01422

Melting point standard 79-81°C

analytical standard

• Sinônimo(s): Naphthalene
• Fórmula empírica (Notação de Hill): C₁₀H₈
• Número CAS: 91-20-3
• Peso molecular: 128.17
• Beilstein: 1421310
• Número CE: 202-049-5
• Número MDL: MFCD00001742
• Código UNSPSC: 20121904
• ID de substância PubChem: 329747268
• NACRES: NA.24

Propriedades

• grau: analytical standard
• Nível de qualidade: 100
• densidade de vapor: 4.4 (vs air)
• pressão de vapor: 0.03 mmHg ( 25 °C)
• temperatura de autoignição: 978 °F
• prazo de validade: limited shelf life, expiry date on the label
• Lim. expl.: 5.9 %
• pb: 218 °C (lit.)
• pf: 79-81 °C (±0.3°C); 80-82 °C (lit.)
• aplicação(ões): food and beverages; pharmaceutical
• cadeia de caracteres SMILES: c1ccc2ccccc2c1
• InChI: 1S/C10H8/c1-2-6-10-8-4-3-7-9(10)5-1/h1-8H
• chave InChI: UFWIBTONFRDIAS-UHFFFAOYSA-N

Descrição

Descrição geral

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.

Aplicação

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.

Características e benefícios

• 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

Informações de segurança

• Pictogramas: GHS02,GHS08,GHS07,GHS09
• Palavra indicadora: Warning
• Frases de perigo: H228,H302,H351,H410
• Declarações de precaução: P202 - P210 - P240 - P273 - P301 + P312 - P308 + P313
• Classificações de perigo: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Flam. Sol. 2
• Código de classe de armazenamento: 4.1B - Flammable solid hazardous materials
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): 173.3 °F - closed cup
• Ponto de fulgor (°C): 78.5 °C - closed cup
• Equipamento de proteção individual: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges