Tris(2,4-dibromophenyl)phosphate(BPP) is an additive flame-retardant for plastic with the properties of low melt point,good compatibility and excellent thermal stability.Chloroform with high value of AN was selected a...Tris(2,4-dibromophenyl)phosphate(BPP) is an additive flame-retardant for plastic with the properties of low melt point,good compatibility and excellent thermal stability.Chloroform with high value of AN was selected as the solvent based on the solvent effect,the flame retardant tris(2,4-dibromophenyl)phosphate(BPP) was synthesized by POCl3 reacting with 2,4-dibromophenol(mol tatio was 1.0∶3.1) under reflux conditions,the yield was 96.4%.展开更多
A mixed-valence polyoxovanadate(DienH3)2(DienH2)[(VⅣ8VⅤ10)O42(PO4)](PO4)·H2O has been hydrothermally synthesized and characterized by elemental analysis,TAG,IR, ESR and X-ray diffraction.Crystal data:monoclinic...A mixed-valence polyoxovanadate(DienH3)2(DienH2)[(VⅣ8VⅤ10)O42(PO4)](PO4)·H2O has been hydrothermally synthesized and characterized by elemental analysis,TAG,IR, ESR and X-ray diffraction.Crystal data:monoclinic, space group C2/c,a=23.728(4),b=12.998(2) ,c=20.089(4) ,β=106.072(3)°,V=5953.4(18)3,Z=4,Dc=2.516g/cm3,C12H52N9O51P2V18,Mr=2116.99,R=0.0974,wR=0.2107(Dien=diethylenetriamine).展开更多
文摘Tris(2,4-dibromophenyl)phosphate(BPP) is an additive flame-retardant for plastic with the properties of low melt point,good compatibility and excellent thermal stability.Chloroform with high value of AN was selected as the solvent based on the solvent effect,the flame retardant tris(2,4-dibromophenyl)phosphate(BPP) was synthesized by POCl3 reacting with 2,4-dibromophenol(mol tatio was 1.0∶3.1) under reflux conditions,the yield was 96.4%.
文摘A mixed-valence polyoxovanadate(DienH3)2(DienH2)[(VⅣ8VⅤ10)O42(PO4)](PO4)·H2O has been hydrothermally synthesized and characterized by elemental analysis,TAG,IR, ESR and X-ray diffraction.Crystal data:monoclinic, space group C2/c,a=23.728(4),b=12.998(2) ,c=20.089(4) ,β=106.072(3)°,V=5953.4(18)3,Z=4,Dc=2.516g/cm3,C12H52N9O51P2V18,Mr=2116.99,R=0.0974,wR=0.2107(Dien=diethylenetriamine).
