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檸檬酸鋅 ZINC CITRATE
一、化學(xue)名稱:檸檬酸鋅
二、分子式:Zn3(C6H5O7)2 ;Zn3(C6H5O7)2·2H2O
三、分子(zi)量:無水(shui):574.43 ;二水(shui):610.47
四、CAS:無水:546-46-3 ;二水:5990-32-9
五、性(xing)狀:白色粉末,無臭(chou)無味,微(wei)溶于水(shui),有風化(hua)性(xing)。能溶于稀礦酸及(ji)堿。
六、用(yong)(yong)途(tu):用(yong)(yong)作營(ying)(ying)養強(qiang)(qiang)化劑(ji)(ji)鋅(xin)質強(qiang)(qiang)化劑(ji)(ji),可(ke)應用(yong)(yong)到食(shi)品(pin)(pin)、保健品(pin)(pin)和醫(yi)療(liao)中(zhong)。檸檬(meng)酸(suan)鋅(xin)作為有(you)機鋅(xin)補劑(ji)(ji),適用(yong)(yong)于(yu)制造片狀(zhuang)營(ying)(ying)養強(qiang)(qiang)化補劑(ji)(ji)和粉狀(zhuang)混合食(shi)品(pin)(pin);因其(qi)具有(you)螯合作用(yong)(yong),可(ke)增加果汁(zhi)飲料的(de)澄清(qing)度以及果汁(zhi)爽口的(de)酸(suan)味(wei),在果汁(zhi)飲料中(zhong)被廣泛應用(yong)(yong);同時可(ke)應用(yong)(yong)于(yu)谷(gu)類及其(qi)制品(pin)(pin)和食(shi)鹽中(zhong)。
七、包裝:內襯聚乙烯塑(su)料袋(dai),外套復合塑(su)料編織袋(dai)包裝,每袋(dai)25kg。
八、貯存(cun)與(yu)運(yun)輸(shu):本品應(ying)貯存(cun)在干燥通(tong)風清潔的庫房中(zhong),裝(zhuang)載運(yun)輸(shu)時要輕裝(zhuang)輕放,防止(zhi)(zhi)包裝(zhuang)破損,防止(zhi)(zhi)受潮、受熱(re),運(yun)輸(shu)過程(cheng)中(zhong)防止(zhi)(zhi)雨淋受潮,應(ying)與(yu)有毒(du)物品隔離(li)。

| 質量指標 | Specification | GB 1903.49-2020 | USP40 | |
| Anhydrous,Dihydrate | Trihydrate | |||
| 含量(Zn3(C6H5O7)2·3H2O),w/% ≥ | Content(Zn3(C6H5O7)2·3H2O), w/% ≥ | ———— | 99.0-103.0 | ———— |
| 含量Zn(以干基計),w/% ≥ | Content Zn (On dry basis),w/% ≥ | 31.3 | ———— | 31.3 |
| 溶解度(25℃)/(g/100ml) | Solubility(25℃)/(g/100ml) | ———— | 3.60 | ———— |
| 鹽酸不溶物,w/% ≤ | Hydrochloric acid insoluble,w/%≤ | ———— | 0.1 | ———— |
| 干燥失重,w/% ≤ | Loss on drying,w/% ≤ | 1.0 | 1.0(Anhydrous) | |
| 氯化物(Cl),w/% ≤ | Chloride (Cl),w/% ≤ | 0.05 | 0.05 | |
| 硫酸鹽(SO4), w/% ≤ | Sulfates (SO4),w/% ≤ | 0.05 | 0.05 | |
| 溶液澄清度 | Solution clarity | ———— | 合格 | ———— |
| 鐵(Fe),mg/kg ≤ | Iron(Fe),mg/kg ≤ | 50 | ———— | |
| 鉛(Pb),mg/kg ≤ | Lead (Pb),mg/kg ≤ | 5.0 | 10.0 | |
| 總砷(As),mg/kg ≤ | Arsenic (As) ,mg/kg ≤ | 2.0 | 3.0 | |
| 鎘(Cd),mg/kg ≤ | Cadmium (Cd),mg/kg ≤ | 5.0 | 5.0 | |
| 干燥溫度和時間分別為105℃±2℃和2h | ||||