富马酸

<*n style="font-family:SimSun;">富马酸<*n>      规格<*n>:99.0%     产地<*n>:日本<*n>/美国<*n>     包装<*n>:25kg/包<*n>    价格<*n>:7600元<*n>/吨<*n>

<*n style="font-family:SimSun;">富马酸<*n>

<*n style="font-family:SimSun;">Fumaric acid

<*n style="font-family:SimSun;">Cas<*n style="font-family:SimSun;">号<*n>: 110-17-8 

<*n style="font-family:SimSun;">分子式<*n> ****H4O4；<*n> HOOCCH=CHCOOH

<*n style="font-family:SimSun;">分子量<*n> 116.07

<*n style="font-family:SimSun;">别名<*n>   *酸<*n>,富马酸，紫堇酸<*n>,E)-2-丁烯二<*n>,反<*n>-1,2-乙烯二羟酸<*n>

<*n style="font-family:SimSun;">TMEDA

<*n style="font-family:SimSun;">trans-2-Butenedioic Acid

<*n style="font-family:SimSun;">性状<*n>   白色单斜棱柱体、针状或叶状结晶。<*n>200℃升华，<*n>230℃部分炭化。能溶于醇，微溶于水和醚，<*n>100g水中溶解度：<*n>25℃时<*n>0.63g，<*n>40℃时<*n>1.07g,60℃时<*n>2.4g,100℃<*n>95%乙醇中溶解度：<*n>30℃时<*n>5.76g；<*n>100g 酮中溶解度：<*n>30℃时<*n>1.72g，<*n>100g 醚中溶解度：<*n>25℃时<*n>0.72g。几乎不溶于橄榄油、****、苯、****、*和液氨。<*n>(封管，急剧加热<*n>)。有刺激性。冷水溶富马酸比原富马酸在冷水中的溶解度****<*n>65%以上，是一种口味更加纯正的酸味剂，其酸度为柠檬酸的<*n>2.5倍，而且乳化性、稳定性更好。<*n>

<*n style="font-family:SimSun;">密度：<*n>1.635

<*n style="font-family:SimSun;">熔点：<*n>287℃<*n>

<*n style="font-family:SimSun;">备注<*n>: 以上描述，仅作参考，并不表示您收到的产品，与此项描述完全相符，产品的出厂标准，请参见质量标准。<*n>

<*n style="font-family:SimSun;">质量标准<*n>  

<*n style="font-family:SimSun;">    Q/(HG)SJ 184-92

<*n style="font-family:SimSun;">项目<*n>Item                                               化学纯<*n>  

<*n style="font-family:SimSun;">                                                        (CP)    

<*n style="font-family:SimSun;">含量<*n>(****H4O4)Assay,%                                   ≥<*n> 99.0    

<*n style="font-family:SimSun;">灼烧残渣<*n>(以*盐计<*n>)Ignition residue,%               ≤<*n> 0.05    

<*n style="font-family:SimSun;">水溶解试验<*n>Solubility                                    合格<*n>    

<*n style="font-family:SimSun;">氯化物<*n>(Cl)Chloride,%                                 ≤<*n> 0.002   

<*n style="font-family:SimSun;">铁<*n>(Fe)Iron,%                                         ≤<*n> 0.001   

<*n style="font-family:SimSun;">*<*n>(以<*n>Pb计<*n>)He*y metals,%                         ≤<*n> 0.002 

<*n style="font-family:SimSun;"> 

<*n style="font-family:SimSun;">项目<*n>                                                 优级纯<*n>    

<*n style="font-family:SimSun;">                                                      (GR)

<*n style="font-family:SimSun;">外观<*n>Appearance                                       白色结晶粉末<*n>

<*n style="font-family:SimSun;">红外光谱鉴别<*n>Infrared spectrometry                    和对照品匹配<*n>

<*n style="font-family:SimSun;">含量<*n>Assay                                            >99.5 %

<*n style="font-family:SimSun;">*<*n>He*y metals (as Pb)                           <5 ppm

<*n style="font-family:SimSun;">灼烧残渣<*n>Res. after ignition                          <0.005 %

<*n style="font-family:SimSun;">氯<*n>Cl                                                 < 50 ppm

<*n style="font-family:SimSun;">铁<*n>Fe                                                 < 5 ppm

<*n style="font-family:SimSun;">*<*n>As                                                 < 2 ppm

<*n style="font-family:SimSun;">总硫<*n>total sulfur (S):                                < 0.0005%

<*n style="font-family:SimSun;"> 

<*n style="font-family:SimSun;">品级<*n>Grade                                细胞培养级，≥<*n>99%  

<*n style="font-family:SimSun;">                                    (for cell culture<*n style="font-family:SimSun;">，≥<*n>99%)

<*n style="font-family:SimSun;">外观<*n>Appearance                            White Powder

<*n style="font-family:SimSun;">醇溶解试验<*n>Solubility                      Colorless Clear ，<*n>50 mg/mL, EtOH

<*n style="font-family:SimSun;">红外光谱<*n>Infrared spectrum                 Conforms to Structure

<*n style="font-family:SimSun;">纯度<*n>Purity (GC)                           ≥<*n>99 %

<*n style="font-family:SimSun;">纯度<*n>Purity (Titration by NaOH)            ≥<*n>99%

<*n style="font-family:SimSun;">细胞培养测试<*n>Cell Culture Test             Pass

<*n style="font-family:SimSun;"> 

<*n style="font-family:SimSun;">≥<*n>99%, FCC：<*n>

<*n style="font-family:SimSun;">外观<*n>Appearance                            White Crystal to Powder

<*n style="font-family:SimSun;">红外光谱<*n>Infrared spectrum                 Conforms to Structure

<*n style="font-family:SimSun;">纯度<*n>Purity (Titr. by NAOH) anhyd.         99.5 - 100.5 %

<*n style="font-family:SimSun;">纯度<*n>Purity (GC)                           ≥<*n>99.0 %

<*n style="font-family:SimSun;">杂质<*n>Impurities                            ≤<*n>0.1 %

<*n style="font-family:SimSun;">  Maleic Acid

<*n style="font-family:SimSun;">灼烧残渣<*n>Residue on ignition (Ash)         ≤<*n>0.10 %

<*n style="font-family:SimSun;">水分<*n>Water (by Karl Fischer)               ≤<*n>0.5 %

<*n style="font-family:SimSun;">*<*n>He*y metal                         ≤<*n>2 ppm

<*n style="font-family:SimSun;"> &nb*s Lead)

<*n style="font-family:SimSun;">*<*n>Arsenic (As)                            ≤<*n>3 ppm

<*n style="font-family:SimSun;">镉<*n>Cadmium (Cd)                            ≤<*n>1 ppm

<*n style="font-family:SimSun;">*<*n>Mercury (Hg)                            ≤<*n>1 ppm

<*n style="font-family:SimSun;">贮存<*n>   密封保存。<*n>

<*n style="font-family:SimSun;">用途<*n>   标定标准碱液。从*、镧、镨和铷中分离钍。合成树脂。媒染剂。*剂。<*n>

<*n style="font-family:SimSun;">联合国编号<*n> 3077

<*n style="font-family:SimSun;">Risk<*n style="font-family:SimSun;">：<*n> R36-

<*n style="font-family:SimSun;">Safety :   S26-

<*n style="font-family:SimSun;">Hazard :   Xi -