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Ted Mooney, P.E. RET

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Chromate Properties

In cold rolling mills we use chromate solution I wish to know the viscosity of chromate at room temperature & pH value of chromate.

Davinder Singh
Calender Roll Manufacturer - Chandigarh, India
2005

Hi, Davinder. I might be misreading the question, but if you're treating your rolls with a solution, why can't you tell us the pH and viscosity instead of asking us to guess at it? 'Chromate' is CrO3--, which is to say it would be any arbitrary concentration, but it's also slang for a range of proprietary post treatment solutions which also contain dichromates, and possibly fluorides and sulphates, accelerators, dyes, and miscellaneous ingredients, with the darker yellow chromates being thicker than the clear and blue-brights.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2005

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