公开(公告)号：US3754871A

公开(公告)日：1973-08-28

申请号：US3754871D

申请日：1971-01-22

Applicant: STEWART HALL CHEM CO

Inventor： HESSEL H ,  KIELE F

IPC: B01J4/02 ,  B01L3/00 ,  C02F1/68 ,  B01D11/02 ,  C02B1/18

CPC classification number: B01L3/505 ,  B01F1/0027 ,  B01J4/02 ,  C02F1/688

Abstract: A simplified chemical dispenser apparatus capable of dispensing a predetermined amount of a treatment chemical into a fluid includes a porous matrix exhibiting capillary action when the fluid contacts a surface of the matrix, a fluid treatment chemical composition located on a surface of the matrix, and housing means for covering said chemical composition and at least said chemical bearing matrix surface to shield against dripping or splashing from the top or sides. The housing may be applied as an envelope in which case the chemical supported upon the matrix is sealed therein.