品级二氧化钛

　　TitaniumDioxideFood（Cosmetic)Grade

　　化学名称Chemicalname:二氧化钛TitaniumDioxide

　　分子式Molecularformula:Ti02分子量Molecularweight:79.88

　　晶型crystalform:锐钛型AnatasePhase

　　CAS:[13463-67-7]INS:171

　　描述DESCRIPTION:它是一种白色粉末，不溶于水、盐酸、稀硫酸及乙醇等有机溶剂，它可以缓慢溶于氢氟酸及热硫酸。Itisawhitepowder,Itisinsolubleinwater,inhydrochloricacid,indilutesulfuricacid,andinalcoholandotherorganicsolvents.Itdissolvesslowlyinhydrofluoricacidandinhotsulfuricacid.

　　鉴定Identification:取试样0.5g，加硫酸5ml，缓缓加热至出现硫酸烟雾后冷却。谨慎地用水稀释至约100ml后过滤。取5ml透明滤液，加过氧化氢数滴，应立即出现橘红色。Add5mLofsulfuricacidto500mgofsample,heatgentlyuntilfumesofsulfurtrioxideevolve,continueheatingforatleast10s,andcool.Cautiouslydilutetoabout100mLwithwater,andfilter.AddafewdropsofhydrogenperoxideTSto5mLoftheclearfiltrate.Ayellow-redtoorange-redcolorappearsimmediately.

　　功能Function:着色剂Color.

　　用途Uses:对食品有增白作用，对紫外线起屏蔽作用，主要用于糖果包衣、凉果、酸奶、面粉改良剂等产品中。Offoodhavewhiteningeffect,ontheroleofultravioletshieldingeffect,mainlyusedforcoatingcandy,preservedfruits,yogurt,flourimprovers,suchasproducts.

　　技术指标符合下列要求Thetechnicalindexessatisfythefollowingrequirements: