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氨基磺酸分析纯AR试剂性能参数介绍
来源:http://www.jnjrh.com 日期:2019-09-28 发布人:admin
点:215-225°c (dec.)
Point: 215-225 degrees C (dec.)
水溶性:146.8 g/l (20°c)
Water solubility: 146.8 g/l (20 degree c)
外观:白色斜方晶体。无味无臭,不挥发,不吸湿
Appearance: White orthorhombic crystal. No odor, no volatility, no moisture absorption
相对密度:2.126
Relative density: 2.126
熔点:205℃(209℃开端合成,260℃合成放出so2、so3、n2和水及其它微量产物)
Melting point: 205 C (starting at 209 C, synthesizing at 260 C, releasing so2, so3, n2, water and other trace products)
折射率:α型1.553,β型1.563,γ型1.568
Refractive index: alpha type 1.553, beta type 1.563, gamma type 1.568
折射系数(25±3℃):1.553~1.568
Refractive coefficient (25 + 3 C): 1.553-1.568
离解常数:1.10×10-2
Dissociation constant: 1.10 *10-2
生成热:685.9kj/mol
氨基磺酸
Heat of formation: 685.9 kj/mol
溶解性:易溶于水和液氨,在水溶液中呈中等酸性,微溶于甲醇,不溶于乙醇和乙醚。
Solubility: Soluble in water and liquid ammonia, medium acidity in aqueous solution, slightly soluble in methanol, insoluble in ethanol and ether.
是偶极体,红外光谱显现3个h的化学环境完整相同,3个o的化学环境也完整相同,所以其构造简式不是h2nso2oh,而是h3nso3,即发作了分子内的酸碱反响。
It is a dipole. Infrared spectra show that the chemical environment of three hours is the same, and the chemical environment of three o is the same. Therefore, the simplified formula is not h_2nso_2oh, but h_3nso_3, i.e. the acid-base reaction occurs within the molecule.
贮存
Keep in storage
密封枯燥保管  密闭包装,并贮于枯燥通风处。与氧化剂、碱类等分储分运。留意个体防护,严禁身体直接接触。误食,用水漱口,饮牛奶或蛋清。
Sealed dry storage sealed packaging, and stored in dry and ventilated place. Storage and transportation with oxidants and alkalis. Pay attention to personal protection and prohibit direct physical contact. Eat by mistake, gargle with water, drink milk or egg white.