公开(公告)号：EP1025182A1

公开(公告)日：2000-08-09

申请号：EP98941441.2

申请日：1998-08-26

申请人： Fortum Power and Heat Oy

发明人： ILVES, Antti ,  REIJONEN, Heikki

IPC分类号： C09K5/04

CPC分类号： C09K5/20

摘要： The invention relates to a liquid for evaporative cooling, said liquid being particularly suitable to indirect evaporative cooling apparatus. The liquid comprises an aqueous solution of trimethyl glycine, preferably containing 5-35 wt.% trimethyl glycine or a derivative thereof, and 65-95 wt.% water.

公开(公告)号：EP1034231A1

公开(公告)日：2000-09-13

申请号：EP98941440.4

申请日：1998-08-26

申请人： Fortum Power and Heat Oy

发明人： ILVES, Antti ,  REIJONEN, Heikki ,  NIEMINEN, Jukka-Pekka

IPC分类号： C09K3/18

CPC分类号： C09K3/185

摘要： The present invention relates to an environmentally friendly liquid for the prevention of freezing of aircrafts and runways, said liquid being particularly suitable to various spraying equipments. The vapor pressure of the said liquid is less than 5 Pa, and the acute oral toxicity, LD50, is more than 10 000 mg/kg. This anti-freezing liquid comprises 10-60 wt.% trimethyl glycine or derivatives thereof, and 40-90 wt.% water, and optionally additives known for anti-freezing liquids.