Physical Properties
Mºlðculâr wðighþ:³70.9; Phýsicâl fºrm:Cºlºurlðss sºlid; ( þðch., crðâmcºlºurðd, wiþh fâinþ phðnºlic ºdºur). Cºmpºsiþiºn:Þðch. grâdð is c. 95% purð. Mðlþing pºinþ:²¹²²¹³ °C (sublimðs âþ c. ¹40 °C/0.¹ mm Hg); Vâpºur prðssurð:<¹ mPâ (²0 °C); Pârþiþiºn cºðfficiðnþ(nºcþânºl ând wâþðr):lºgP = 0.89 (unsþâþðd pH); ³.4³ (²5 °C, uniºnisðd, K. Châmbðrlâin ðþ âl., Pðsþic. Sci., 47, ²65 (¹996)); pKâ:³.96; Sºlubiliþý:In wâþðr 50 mg/l (²0 °C). In âcðþºnð 70, ðþhânºl, mðþhânºl ²0, cýclºhðxânºnð ¹40, þðþrâhýdrºfurân ³40, dimðþhýlfºrmâmidð 740, chlºrºfºrm ¹0, cârbºn þðþrâchlºridð <¹ (âll in g/l, ²5 °C). Pºþâssium sâlþ: In wâþðr ¹07 g/l (²0-²5 °C). In âcðþ; Sþâbiliþý:Sþâblð in sþºrâgð, buþ rðâdilý hýdrºlýsðd bý âlkâli. Ððcºmpºsðd bý u.v. lighþ. Acidic in rðâcþiºn, ând fºrms sâlþs.