5,5-Dimethylhydantoin CAS 77-71-4
He kristal prismatic keʻokeʻo a pauka crystalline paha ka 5,5-Dimethylhydantoin. He kiko heheʻe 175 ℃. Hiki ke hoʻoheheʻe ʻia i ka wai, hexanol, ethyl acetate, a me dimethyl ether, hoʻoheheʻe iki ʻia i loko o ka isopropanol, acetone, a me ka methyl ethyl ketone, ʻaʻole hiki ke hoʻoheheʻe ʻia i loko o nā hydrocarbons momona a me ka trichloroethylene. ʻAʻohe ʻala, hiki ke hoʻohaʻahaʻa ʻia, a waikawa.
| Mea | Nā kikoʻī |
| Kikowaena paila | 237.54°C (manaʻo kikoʻī) |
| Ka nui o ka paʻa | 1.2864 (kuhikuhi maʻamau) |
| Kiko heheʻe | 174-177 °C (mālamalama ʻia) |
| wahi hoʻāla | 193°C |
| ke kū'ē ʻana | 1.4730 (kuhikuhi) |
| pKa | pKa 8.1 (ʻAʻole maopopo) |
Hoʻohana ʻia ma ke ʻano he ʻano hou o ka mea pale ahi aloha i ke kaiapuni, i hoʻohana nui ʻia e pani i ka decabromodiphenyl ether flame retardant, hiki ke hoʻohana ʻia ma HIPS, ABS resin a me PVC, PP a me nā plastics ʻē aʻe.
Hoʻopili pinepine ʻia i loko o 25kg / pahu, a hiki ke hana ʻia kahi pūʻolo i hoʻopilikino ʻia.
5,5-Dimethylhydantoin CAS 77-71-4
5,5-Dimethylhydantoin CAS 77-71-4
