产品规格：5kg原装产品货号：U0631产品原价：￥1150.00促销价：800.00所属分类：其他生化***所属厂家：Sigma产品说明：ProductNameUrea,BioXtra,pH7.5-9.5(20°C,5MinH2O)ProductNumberU0631ProductBrandSIGMACASNumber57-13-6MolecularWeight60.06TESTSPECIFICATIONAPPEARANCEWHITEPOWDERSOLUBILITYCLEARCOLORLESS(5MINWATERAT20DEGC)IRSPECTRUMCONFORMSTOSTRUCTUREAMMONIACONTENT<OR=0.05%RESIDUEONIGNITION<OR=0.1%PHTEST7.5TO9.5(5MINWATERAT20DEGC)CHLORIDE<OR=0.05%SULFATE<OR=0.05%INSOLUBLEMATTER<OR=0.1%ALUMINUM<OR=0.0005%CALCIUM<OR=0.0005%COPPER<OR=0.0005%IRON<OR=0.0005%LEAD<OR=0.001%MAGNESIUM<OR=0.0005%PHOSPHORUS<OR=0.005%SODIUM<OR=0.005%ZINC<OR=0.0005%POTASSIUM<OR=0.005%UV-VISSPECTRUM<OR=0.06AT260NM<OR=0.06AT280NM(C=6M,INH2O)ASSAY99.0-100.5%RECOMMENDEDRETEST5YEARS)