Highly stable dichlorobenzidine dihydrochloride slurry and a met

Details Highly stable dichlorobenzidine dihydrochloride slurry and a met Highly stable dichlorobenzidine dihydrochloride slurry and a met

1984-02-09

1985-12-17

Gron, Teddy S.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252311, 106308N, C09K 300, B01J 1300, C09D 1100

Patent

active

045591601

ABSTRACT:
A dichlorobenzidine dihydrochloride (DCB) slurry is produced by adding DCB to a dilute mineral acid carrier composed of hydrochloric acid, sulfuric acid or phosphoric acid, by maintaining the DCB concentration within the range such that the diamine amount constitutes from about 35% to about 50% by weight, and by blending the slurry with a high shear device in order to break up any clumps of DCB and to reduce the size of the individual particles of DCB. The resulting slurry is very fluid, yet has an extremely low solids settling rate.

REFERENCES:
patent: 4341701 (1982-07-01), Pechey et al.

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