供应正辛酸
正辛酸    

n-Octanoic    acid    

Cas号:124-07-2                MDL:        --MFCD00004429        

Beilstein        1747180        EINECS:        --204-677-5        

分子式    C8H16O2；    CH3(CH2)6COOH    

分子量    144.21    

别名正    辛酸;正辛酸锂;辛酸;羊脂酸;正辛酸(羊脂酸);辛酸

Caprylic    acid    

分子结构式        

性状    无色油状液体，略有不愉快气味。溶于醇和醚，水中溶解度:0.68    g/L    (20°C)。

密度:        0.91        

熔点:        15-17    °C    

沸点:        238    °C    

闪点:        110    °C    

折光率nD20:        1.428            

                

质量标准            

        项目                                                                                                                                                分析纯                    

                                                                                                                                                                (AR)    

纯度Purity                                                                                                                        ≥99.0%    (GC)    

酸值Acid    value，mgKOH/g                                                                    385-390

碘值Iodine    value                                                                                                

<0.5    g    I2/100    g    >熔点Melting    point                                                                                            14-17°C    

皂化值Saponification    value，mgKOH/g                    385-392    

水分Water                                                                                                                            ≤0.2%    

未皂化值unsap.matter                                                                                ≤1.0%    

色泽Colour（Lovibond    5%）：　R                                        ≤0.2    

                                                                                                                    Y                                        ≤1    

    

项目                                                                                                                                                化学纯                    

                                                                                                                                                                    (CP)    

含量Assay                                                                                                                            ≥98.0%        

结晶点Freeging    point，℃                                                                ≥9.0        

相对密度Specific    gravity    (20/20°C)                    0.905～0.915        

折光率Refractive    index    n20/D                                                1.427～1.429        

灼烧残渣Residue    ignition                                                                ≤0.05%                

贮存    密封阴凉干燥保存。    

用途    气相色谱分析标准。防腐剂。杀菌剂。香料、染料、增塑剂、润滑剂的制造。    

联合国编号    3265