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醋酸鈉

分子式:C2H3NaO2·xH2O(x=0 or 3)

分子量: anhydrous: 82.03 ; trihydrate:136.08

CAS NO: anhydrous 127-09-3 ; trihydrate 6131-90-4

質量指標
          

參數

FCC V

E262(i)

鑒別試驗)

Pass test

Pass test

(含量)  %

99.0-101

≥98.5

(堿度) %

≤0.2      anhydrous
≤0.05     trihydrate

---

鉛) mg/kg

≤2

≤2

干燥減量)%

≤1.0      anhydrous
36.0-41.0   trihydrate

≤2.0     anhydrous (120℃,4hours)
36.0-42.0  trihydrate  (120℃,4hours)

(鉀化合物) %  

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PH(1%)

---

8.0-9.5

(砷)    mg/kg

---

≤3

y(汞)

---

≤1

(甲(jia)酸)    mg/kg

---

≤1000

 

性狀:無(wu)色無(wu)味的結晶體,在(zai)空氣中可被風化,可燃(ran)。溶于(yu)(yu)(yu)水(shui)和乙醚,微溶于(yu)(yu)(yu)乙醇(chun)。三水(shui)醋酸鈉(na)的熔點58℃,相(xiang)對密度1.45,自燃(ran)點607.2℃。于(yu)(yu)(yu)123℃時脫去3分子水(shui)。無(wu)水(shui)醋酸鈉(na)的熔點324℃,相(xiang)對密度1.528

用(yong)(yong)(yong)(yong)(yong)(yong)(yong)途:用(yong)(yong)(yong)(yong)(yong)(yong)(yong)作(zuo)有機合(he)成的酯化劑(ji)(ji)(ji)以及攝影(ying)藥品、醫藥、印(yin)染(ran)(ran)媒(mei)染(ran)(ran)劑(ji)(ji)(ji)、緩(huan)(huan)沖(chong)劑(ji)(ji)(ji)、化學試劑(ji)(ji)(ji)、肉(rou)類防(fang)腐、顏料(liao)、鞣(rou)革等(deng)(deng)(deng)許多方面(mian)。可(ke)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)制取各種化工產(chan)品,如呋(fu)喃丙(bing)烯酸(suan)、醋酸(suan)酯和(he)氯乙酸(suan)等(deng)(deng)(deng)。該品作(zuo)為調(diao)味(wei)料(liao)的緩(huan)(huan)沖(chong)劑(ji)(ji)(ji),可(ke)緩(huan)(huan)和(he)不良氣(qi)味(wei)并(bing)防(fang)止變色,具有一定的防(fang)霉(mei)作(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)。亦可(ke)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)作(zuo)調(diao)味(wei)醬、酸(suan)菜(cai)、蛋黃醬、魚(yu)糕、香腸、面(mian)包、粘(zhan)糕等(deng)(deng)(deng)的酸(suan)味(wei)劑(ji)(ji)(ji)。與甲基纖維素、磷酸(suan)鹽等(deng)(deng)(deng)混合(he),用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)提高(gao)香腸、面(mian)包、粘(zhan)糕等(deng)(deng)(deng)的保存性。用(yong)(yong)(yong)(yong)(yong)(yong)(yong)作(zuo)普通分析試劑(ji)(ji)(ji)、媒(mei)染(ran)(ran)劑(ji)(ji)(ji)、緩(huan)(huan)沖(chong)劑(ji)(ji)(ji),還可(ke)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)染(ran)(ran)料(liao)合(he)成及影(ying)片沖(chong)洗。用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)醫藥、印(yin)染(ran)(ran)及有機合(he)成用(yong)(yong)(yong)(yong)(yong)(yong)(yong)作(zuo)媒(mei)染(ran)(ran)劑(ji)(ji)(ji)和(he)緩(huan)(huan)沖(chong)劑(ji)(ji)(ji),也用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)染(ran)(ran)料(liao)和(he)制藥工業(ye)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)印(yin)染(ran)(ran)、醫藥、攝影(ying)等(deng)(deng)(deng),亦用(yong)(yong)(yong)(yong)(yong)(yong)(yong)作(zuo)酯化劑(ji)(ji)(ji)、防(fang)腐劑(ji)(ji)(ji)。

包裝(zhuang):25kg紙(zhi)塑復合袋

儲(chu)運:庫房通風低溫干燥(zao); 與氧化劑、酸類分開存放


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