Ethylene Glycol → Tris (ethylenediamine) zinc (II) chloride

Tris (ethylenediamine) zinc (II) chloride is prepared by adding 788 ml of ethylenediamine (3.0 molar equivalents) to an aqueous solution containing 533 gms of zinc chloride in 1800 ml of water. The plasticizing solution is Estrabond E (a mixture of 55 percent triacetin and 45 percent ethylene glycol 400). Filter rods (120 mm) were made at "standard" pressure drop and weight. The plasticizer solution and zinc complex solutions were applied separately to the tow with wick applicators. For a 20 mm filter section, an overall weight increase of 11.4 percent was observed with a zinc ion and polyethylene glycol concentration of 0.73 mg and 2.66 mg respectively for a 20 mm filter section. 85 mm cigarettes were then prepared containing a 20 mm filter section. Analyses for hydrogen cyanide and various other constituents are given in Table IV.

1. filtrationFor a 20 mm filter section
2. temperaturean overall weight increase of 11.4 percent
3. filtrationfilter section
4. custom85 mm cigarettes were then prepared
5. additioncontaining a 20 mm
6. filtrationfilter section

ORD-Eintrag

ord-5a8a4e1c98144f06bf844f0051783743

Quelldatensatz

uspto-grants-1978_05

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US04091822