The first major update to the online version of ACS Reagent Chemicals released on February 15. It included changes to the content of 35 monographs and upgrades to over 1,400 equations. We’ve also added clear indicators for current content and a permanent link to the current version, so users can bookmark one page and never have […]

Monographs have clear 'Authoritative Version' markings for the current version just under the title information (top panel) and 'Expired' markings for the outdated versions (bottom panel). Click to enlarge.
Monographs have clear 'Authoritative Version' markings for the current version just under the title information (top panel) and 'Expired' markings for the outdated versions (bottom panel). Click to enlarge.

The first major update to the online version of ACS Reagent Chemicals released on February 15. It included changes to the content of 35 monographs and upgrades to over 1,400 equations. We’ve also added clear indicators for current content and a permanent link to the current version, so users can bookmark one page and never have to worry they’re reading an outdated copy. Additionally, every monograph will have a Supplements and Updates box to describe any changes that have occurred—whether that particular monograph has changed or not.

How have the monographs changed?

The ACS Committee on Analytical Reagents continually reviews existing monographs and considers new methods and quality specifications. ACS Reagent Chemicals now contains 35 updated monographs, incorporating changes the Committee saw as necessary to keep the monograph at the peak of scientific accuracy and discovery.

Because every monograph is under proactive review to ensure users get the best value, we also corrected links, punctuation, formatting, and appearance problems in over 60 monographs.

Why were the equations updated?

Every monograph has a box to describe changes. Even the monographs that haven't been updated will have an entry, so users never question whether they have the most up-to-date copy. Click to enlarge.
Every monograph has a box to describe changes. Even the monographs that haven't been updated will have an entry, so users never question whether they have the most up-to-date copy. Click to enlarge.

Want to see a sample of ACS Reagent Chemicals?

If you don’t have a subscription, visit the, Acetone, and Potassium Hydrogen Phthalate monographs to experience the latest online version. Subscribers, check out the full text of Colorimetry and Turbidimetry to view a complete example of how we archive expired content, watermark it, and integrate a new authoritative version.

Learn more about ACS Reagent Chemicals.

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