How "Hydroxy" helps clean equipment easily...inexpensively - C&EN

Nov 6, 2010 - Chem. Eng. News , 1962, 40 (16), p 101. DOI: 10.1021/cen-v040n016.p101. Publication Date: April 16, 1962. Copyright © 1962 AMERICAN ...
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How "Hydroxy" helps clean equipment easily... inexpensively Hydroxy ace tic acid is one of the low·, est-priced organic acids. It's an effec­ tive scale dissolver and chelating agent; kills rust-producing bacteria. It can often replace more costly or­ ganic acids, presents no chloride stress-cracking problems, and is only slightly corrosive to metals. OIL WELLS — In acid cleaning, hy­ droxy acetic acid aids in dissolving the scale . . . then its chelating prop­ erties keep the scale dissolved. In water used for flooding, it keeps the iron in solution . . . at low cost. WATER WELLS—Hydroxyacetic acid

dissolves iron deposits, keeps the iron in solution by chelation during pump-out, and kills rust-producing bacteria . . . all in a single treatment. POWER-GENERATION

BOILERS-

Modern super-critical boilers of stainless steel must be kept scrupu­ lously clean. A formic/hydroxyacetic acid mixture does the job with no danger of chloride stress corrosion or danger of precipitation during cleaning. DECONTAMINATION

CLEANING— H y -

droxyacetic acid can be part of for­ m u l a t i o n s used for c l e a n u p of radioactive materials. It is able to dissolve and sequester many metals as effectively as many high-cost chemicals. MISSILES—The hydrazine tanks of liquid-fuel missiles must be neutral­ ized and cleaned before each refuel­ ing. A low-cost compound based on hydroxyacetic acid is currently be­ ing used on the Titan II. METAL

VERSATILE CLEANING AGENT... DU PONT HYDROXYACETIC ACID

dUPDNI

BETTER THINGS FOR BETTER LIVING ,

THROUGH

CHEMISTRY

PICKLING—Hydroxyacetic

acid is an excellent organic acid for cleaning and pickling many metals. It eliminates residues and elevatedtemperature volatilization . . . so it cuts down on dangerous acid fumes. For your copy of the latest techni­ cal booklet on Du Pont hydroxyace­ tic acid, write: Du Pont Company, N-2545, Industrial & Biochemicals· Dept., Wilmington 98, Delaware.

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INDUSTRIAL CHEMICALS

Industrial & Biochemicals Dept. C & Ε Ν 101