901229
硫酸铵
anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99.0%
别名:
硫铵石
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线性分子式:
(NH4)2SO4
化学文摘社编号:
分子量:
132.14
UNSPSC Code:
12352314
NACRES:
NA.21
EC Number:
231-984-1
MDL number:
Assay:
≥99.0%
Grade:
ACS reagent
anhydrous
anhydrous
Form:
powder or crystals
Solubility:
water: soluble 132 g/L at 20 °C
产品名称
硫酸铵, anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99.0%
assay
≥99.0%
InChI key
BFNBIHQBYMNNAN-UHFFFAOYSA-N
InChI
1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
SMILES string
N.N.OS(O)(=O)=O
grade
ACS reagent
anhydrous
product line
Redi-Dri™
form
powder or crystals
impurities
≤0.005% Insoluble matter
ign. residue
≤0.005%
pH
5.0-6.0 (25 °C, 5%)
mp
>280 °C (dec.) (lit.)
solubility
water: soluble 132 g/L at 20 °C
density
1.77 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤5 ppm
nitrate (NO3-): ≤0.001%
phosphate (PO43-): ≤5 ppm
cation traces
Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)
storage temp.
room temp
Quality Level
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Application
硫酸铵用于甲基纤维素可沉淀的单宁测定中，以评估成品酒样品中的葡萄酒单宁。它也用于制造外部混合气溶胶，以分析 1×3 串联差分迁移率分析仪（1×3-TDMA），主要用于确定气溶胶颗粒的吸湿性生长因子的不可逆性。
General description
硫酸铵是一种常用作肥料的铵盐。它可以用硫酸和氨中和法合成。它可以增强草甘膦等几种除草剂的植物毒性。硫酸铵是在生产己内酰胺(尼龙的前体)过程中形成的副产物。
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
存储类别
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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商品
Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.
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