76170

Schmelzpunktstandard 121-123°C

analytical standard

• Synonym(e): Benzoesäure
• Lineare Formel: C₆H₅COOH
• CAS-Nummer: 65-85-0
• Molekulargewicht: 122.12
• Beilstein: 636131
• EG-Nummer: 200-618-2
• MDL-Nummer: MFCD00002398
• UNSPSC-Code: 20121904
• PubChem Substanz-ID: 329766569

Eigenschaften

• Qualität: analytical standard
• Qualitätsniveau: 100
• Dampfdichte: 4.21 (vs air)
• Dampfdruck: 10 mmHg ( 132 °C)
• Selbstzündungstemp.: 1061 °F
• Haltbarkeit: limited shelf life, expiry date on the label
• bp: 249 °C (lit.)
• mp (Schmelzpunkt): 121-123 °C (±0.3°C); 121-125 °C (lit.)
• Anwendung(en): food and beverages; pharmaceutical
• Format: neat
• SMILES String: OC(=O)c1ccccc1
• InChI: 1S/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9)
• InChIKey: WPYMKLBDIGXBTP-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Benzoic acid melting point standard, 121-123 °C is useful as a melting point calibration standard while defining the purity of pharmaceutical chemicals. Its 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.

Anwendung

Melting point standard 121-123 °C, benzoic acid is an analytical standard used to calibrate melting point instruments, in the thermodynamic mode of operation. It is also used in R & D labs for chemical quality control (QC) and quality assurance (QA) to identify solid crystalline substances and to check their purity.

Leistungsmerkmale und Vorteile

• Melting point calibration standard traceable to primary standards (LGC, London)
• Grade: Analytical Standard
• Uncertainty of measurement up to ± 0.3 °C
• Provided with certificates of analysis and safety data sheet
• A product of analytical standard grade that meets the QC/QA requirements of melting point analysis

Sicherheitshinweise

• Piktogramme: GHS05,GHS08
• Signalwort: Danger
• H-Sätze: H315 - H318 - H372
• P-Sätze: P260 - P264 - P280 - P302 + P352 - P305 + P351 + P338 - P314
• Gefahreneinstufungen: Eye Dam. 1 - Skin Irrit. 2 - STOT RE 1 Inhalation
• Zielorgane: Lungs
• Lagerklassenschlüssel: 6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: dust mask type N95 (US), Eyeshields, Faceshields, Gloves