???? ???? ????? ???? ???????? ??????, ?????? ??????, ???? ???????? ??????? ?? ??????? ?????????? ?????? ???????????? ???????, ???????? ??? ???? ??? ??? ?? ???? ??? ???? ???????? ????? (d2025): 1.363? ??????? 270 °c (???)? ?????? ???????? (67.6g/100ml, 20 °C), 5% ??? ??? (47.5g/100ml, ???? ?????????), 25% ???? ??? (5Chemicalbooklg/100ml, ???? ?????????)? ????????? ??????? (5.8g/100m1), ????? (0.3g/100m1) ? ????????? 1% ????? ??????? pH ??? 7~8? ??? ?????? ???????????? ??? ???? ?????????? ???? ????????? ?????? ???? ??? ???????? ???????????? ??????? ????????? ???? ?? ??????? ??? ??????? ?????? ??????????? ???? ?????? ????????? ???????????, ??? ?????????????? ???????? ????? ?????? ???? ???? ??? ???????? ???????? ?? ?????? ??? ?? ?????