G L U C O N I C A C I D : mild nontoxic compound—sequesters m e t a l l i c ions over m e d i u m a n d h i g h pH r a n g e s . W h e n u s e d i n c a u s t i c s o l u t i o n s prevents a d h e r e n t scale i n a l u m i n u m e t c h i n g , d e r u s t s , retards r e r u s t i n g , strips p a i n t w i t h o u t a t t a c k i n g base m e t a l s — c l e a n s glass m o l d s and bottles. O X A L I C A C I D : strong org a n i c a c i d — n o t e d for i t s a b i l i t y t o solubilize iron oxide—oxalates are i m p o r t a n t i n b l u e p r i n t i n g a n d gold coloring of a l u m i n u m •—widely u s e d i n m e t a l cleaners and polishes.
TARTARIC ACID: nontoxic
s e q u e s t e r a n t over low a n d m e d i u m pH ranges—its s a l t s are u s e d i n copper e l e c t r o p l a t i n g , for brass c l e a n i n g , t i n p l a t i n g , m i r ror silvering, textile p r i n t i n g and blueprinting. B E N Z O I C A C I D : used as a resin i n t e r m e d i a t e — s o d i u m s a l t is a n a n t i m y c o t i c a n d a n t i - c o r rosive c o m p o u n d for p a i n t s a n d textiles.
COOH HCOH HOCH HCOH HCOH CHJOH
COOH COOH
rill
v -
CITRIC ACID: a m o s t ver-
s a t i l e n o n t o x i c s e q u e s t e r a n t for low a n d m i d d l e pH ranges u p t o 9, excellent for d e r u s t i n g , d e s c a l i n g a n d c l e a n i n g ferrous a n d n o n f e r r o u s m e t a l s . Also effective i n p r i n t i n g pastes for p o l y propylene c a r p e t i n g a n d fabric.
ITACONIC ACID: low toxicity — u n i q u e beta-carboxyl g r o u p adds a d h e s i o n , s o l u b i l i t y , and stability to copolymers. Other i t a c o n i c m o n o m e r s (dim e t h y l a n d d i b u t y l ) also c o m mercially available.
CH: = C-C00H 1 CH:-C00H
FUMARIC ACID: is a prime
COOH HCOH
HCCOOH
m o n o m e r i n alkyd or polyester 1 resins a n d resin a d d u c t s m a n u facture.
HOOCCH
HOCH COOH
ERYTHORBIC ACID.anti-
0 = C
1
o x i d a n t . . . effective i n t h e p r e p a r a t i o n of p h o t o g r a p h i c d e v e l opers.
HOC
1
II HOC
0 1
:
! !
1
M1 C — 1 HCOH
> CH.OH
Pfizer
CHEMICALS DIVISION
235 E. 42nd St., N.Y. 10017
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