原产于中国PH9298 | 氯化钠 优级纯 GR ≥99.8% Sodium chloride CAS号:7647-14-5

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产品名称 : PH9298 | 氯化钠 优级纯 GR ≥99.8% Sodium chloride CAS号:7647-14-5
产品品牌 : 飞净 PHYGENE

 

产品名称:氯化钠
CAS号:7647-14-5
重金属(以Pb计),% ≤0.0005
pH值(50g/L,25℃) 5.0~8.0
含量,% ≥99.8
澄清度试验 合格
总氮量(N),% ≤0.0005
碘化物(I),% ≤0.001
硫酸盐(SO4),% ≤0.001
磷酸盐(PO4),% ≤0.0005
溴化物(Br),% ≤0.005
干燥失量,% ≤0.2
水不溶物,% ≤0.003
性状:白色立方结晶或结晶性粉末。25℃时,1g溶于2.8ml水、2.6ml沸水、10ml甘油,极微溶于乙醇。其水中溶解度因HCl存在而减少,几乎不溶于浓盐酸。水溶液呈中性,pH为5.0~8.0。相对密度 2.17。熔点 804℃。沸点 1413℃。
用途:生化研究
执行标准:GB/T1266-2006

保存:常温运输保存,有效期3年。


Sodium chloride commonly known as salt (although sea salt also contains other chemical salts), is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions.  With molar masses of 22.99 and 35.45 g/mol respectively, 100 g of NaCl contains 39.34 g Na and 60.66 g Cl.  Sodium chloride is the salt most responsible for the salinity of seawater and of the extracellular fluid of many multicellular organisms.  In its edible form of table salt, it is commonly used as a condiment and food preservative.  Large quantities of sodium chloride are used in many industrial processes, and it is a major source of sodium and chlorine compounds used as feedstocks for further chemical syntheses.  A second major application of sodium chloride is de-icing of roadways in sub-freezing weather.

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