-- The Home Page of the Finishing Industry
23+ years of serious education, promoting Aloha,
& the most fun you can have in metal finishing smiley
    no popups, no spam
on this site
current topics
topic 11197

Chemical or Physical?


For my science lab, I took calcium hydroxide(powder form) and Ammonium chloride(powder form)on the either side of a paper circle. Then folded it to enclose the compounds and rubbed the top surface vigorously with my fingers. When I opened it, a very strong odour which wasn't there before was present. There was no change in color, shape or anything. Only an odour which made my nose burn. I need to know whether or not any reaction took place. Please Help!

Farah Naz Ahmed
- Ottawa city, Ontario, Canada


You did say that this produced a strong odor that wasn't there before, didn't you? So there was obviously a reaction. Although I'm not familiar with the particular experiment, I can make an educated guess as to what the reaction was--and I think you can too.

Ted Mooney, Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey

This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Comment to THIS thread START a NEW threadView CURRENT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices

©1995-2018, Inc., Pine Beach, NJ   -   About   -  Privacy Policy
How Google uses data when you visit this site.