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isophthalic acid
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isophthalic acid
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isophthalic acid
间苯二甲酸
白色结晶性粉末或针状结晶。易溶于醇和冰醋酸,微溶于沸水但不溶于冷水,几乎不溶于苯和石油醚。熔点为345~348℃,相对水的密度为1.507。易燃,毒性低,能升华。又称异酞酸、1,3-苯二甲酸。
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Euler necessary condition
Euler number
Euler number triangle
Euler operator
Euler parameter
Euler path
Euler pentagonal number theorem
Euler phi function
Euler phi-function
Euler-Poincare characteristic
Euler-Poincaré characteristic
Euler-Poincaré class
Euler-Poincaré formula
Euler-Poincaré mapping
Euler Poinsot case
Euler-Poinsot case
Euler point
Euler Poisson Darboux equation
Euler-Poisson-Darboux equation
Euler-Poisson integral
euler pole
Euler polygonal arc
Euler polygonal arc method
Euler polygon division problem
Euler polygons
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