4 هیدروکسی بنزوئیک اسید 821814 مرک Hydroxybenzoic acid-4 821814 merck
4 هیدروکسی بنزوئیک اسید 821814 مرک
Hydroxybenzoic acid-4 821814 merck 4-Hydroxybenzoic acid for synthesis.
اطلاعات فیزیکوشیمیایی
دمای احتراق> 250 درجه سانتی گراد
نقطه ذوب 213 - 216 درجه سانتی گراد
مقدار pH 3.3 (1 گرم در لیتر ، H₂O ، 20 درجه سانتی گراد)
تراکم فله 600 کیلوگرم در متر مکعب
حلالیت 5 گرم در لیتر
Product Information
CAS number 99-96-7
EC number 202-804-9
Hill Formula C₇H₆O₃
Chemical formula 4-(OH)C₆H₄COOH
Molar Mass 138.12g/mol
HS Code 2918 29 00
Structure formula Image
Applications
Application 4-Hydroxybenzoic acid for synthesis. CAS 99-96-7, chemical formula 4-(OH)C₆H₄COOH.
Physicochemical Information
Ignition temperature >250C
Melting Point 213-216C
pH value 3.3 (1g/l, H₂O, 20C)
Bulk density 600kg/m3
Solubility 5g/l
Toxicological Information
LD 50 oral LD50 Rat > 5000 mg/kg
Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s) H319: Causes serious eye irritation.
Precautionary Statement(s) P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Storage class 10 - 13 Other liquids and solids
WGK WGK 1 slightly water endangering
Disposal 4
Liquid organic acids or solutions should be diluted, if necessary, and carefully neutralized with sodium hydrogen carbonate (Cat. No. 106323) or with sodium hydroxide (Cat. No 106462). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535).
Safety Information
Hazard Symbols Irritant
Categories of danger irritant
R Phrase R 36
Irritating to eyes.
Storage and Shipping Information
Storage Store below +30C.
Specifications
Assay (HPLC, area%) 98.0% (a/a)
Melting range (lower value) 214C
Melting range (upper value) 217C
Identity (IR) passes test