76170

Melting point standard 121-123°C

analytical standard

• Synonym(s): Benzoic acid
• Linear Formula: C₆H₅COOH
• CAS Number: 65-85-0
• Molecular Weight: 122.12
• Beilstein/REAXYS Number: 636131
• EC Number: 200-618-2
• MDL number: MFCD00002398
• UNSPSC Code: 20121904
• PubChem Substance ID: 329766569
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• vapor density: 4.21 (vs air)
• vapor pressure: 10 mmHg ( 132 °C)
• autoignition temp.: 1061 °F
• shelf life: limited shelf life, expiry date on the label
• bp: 249 °C (lit.)
• mp: 121-123 °C (±0.3°C); 121-125 °C (lit.)
• application(s): 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)
• InChI key: WPYMKLBDIGXBTP-UHFFFAOYSA-N

Description

General description

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.

Application

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.

Features and Benefits

• 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

Safety Information

• pictograms: GHS08,GHS05
• signalword: Danger
• hcodes: H315,H318,H372
• pcodes: P260 - P264 - P280 - P302 + P352 - P305 + P351 + P338 - P314
• Hazard Classifications: Eye Dam. 1 - Skin Irrit. 2 - STOT RE 1 Inhalation
• target_organs: Lungs
• Storage Class: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Faceshields, Gloves