From plants "on stream"...from basic knowledge of sulfonation

Nov 12, 2010 - Eng. News , 1957, 35 (46), pp 78–79. DOI: 10.1021/cen-v035n046.p078. Publication Date: November 18, 1957. Copyright © 1957 AMERICAN ...
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ACID Assay

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PHENOLSULFONIC 70-75%

Solubility

Soluble in water. Slightly soluble in benzene,

Corrosivity

No appreciable corrosion of cast iron or steel below 1 2 0 ° C.

II -S-OH

Sp. Gr. 2 5 / 1 5 . 5 ° C .

1.435-60

Typical applications: A strongly acid compound used mainly as a dye intermediate and as an accelerator in resin manufacture. D a t a sheet available.

OH

SO3H

V

ACID

(mixed

isomers)

Available as 65 % a n d 7 0 % aque­ ous solutions. 70% solution h a s these approximate p r o p e r t i e s : Free phenol Iron (Fe) Free H2SO4 Assay Specific gravity at 15.5° C

2.2°^, maximum 0.10% maximum 3 . 0 % maximum 70.0—72.5% 1.375—Ί.395

Typical applications: Useful as a tin-plating additive, for t h e manufacture of oth r intermediates, a n d for t h e production of dyes, medicinals a n d tanning a g e n t s . D a t a sheet available.

Monsanto is the world's largest producer of phenol by the benzene-sulf onation, caustic-fusion method. Through this same sulfonation know-how, Monsanto can provide high-assay tonnages of sulfonated ring intermediates. The four shown are typical. Samples available when requested on your company letterhead. More descriptive chemical data on these sulfonated ring compounds may be obtained with the coupon.

78

C& ΕΝ

NOV.

18,

19 5 7

hERCULES PE HELPS YOU GET BETTER hERCULES PE HELPS YOU GET BETTER

hERCULES PE HELPS YOU GET BETTER TOLUENESULFONIC ACID ( t e c h n i c a l )

D I H Y D R O X Y DIPHENYL SULFONE

Composition..

CH

y ^ 3 > ^ Λ. w^ ,i

SO3H ^v J ^Vs. J? >r

..Approx. 8 0 % para, 20