Page 216 - Demo

Safety Reference
Preparation of Acid Solutions
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Name / Formula / F.W.
Acetic Acid* CH3CO2H
F.W. 60.05 99.7%, 17.4 M sp. gr. 1.05
Hydrochloric Acid* HCl
F.W. 36.4 37.2%, 12.1 M sp. gr. 1.19
Nitric Acid* HNO3
F.W. 63.01 70.0%, 15.8 M sp. gr. 1.42
Phosphoric Acid* H3PO4
F.W. 98.00 85.5%, 14.8 M sp. gr. 1.70
Sulfuric Acid* H2SO4
F.W. 98.08 96.0%, 18.0 M sp. gr. 1.84
Concentration
6 M 3 M 1 M
0.5 M 0.1 M
6M 3 M 1M
0.5 M 0.1 M
6M 3M 1M
0.5 M 0.1 M
6M 3M 1M
0.5 M 0.1 M
9M 6M 3M 1M
0.5 M 0.1 M
Amount/Liter§ 345 mL
173 58 29 5.8
500 mL 250 83 41 8.3
380 mL 190 63 32 6.3
405 mL 203 68 34 6.8
500 mL† 333† 167† 56
28 5.6
*Always add acid to water. The addition of acid to water is an exothermic reaction. Use high temperature (e.g., Pyrex®) glassware.
†Extremely exothermic, submerge mixing vessel in an ice bath. See adjacent box.
§The amount of solute required to prepare one liter of solution.
Preparing Sulfuric Acid Solution?
Always ADD ACID (AA) to water! A great amount of heat is liberated when sulfuric acid is added to water. The temperature of the solution will rise rapidly. In fact, the temperature may rise so fast that the solution will boil and possibly spatter a strongly acidic solution. Consider immersing your mixing vessel in a bucket of ice to control the solution temperature. Always add the acid to water very slowly while stirring continuously.
See free How To video at flinnsci.com.
Safe Storage of Acids
Flinn/SciMatCo® Wooden Acid Cabinets are Ideal for School Storerooms
Corrosive chemicals, such as strong acids and bases, must be isolated from other chemicals to prevent accidental contact and hazardous reaction conditions. The best way to isolate your corrosive chemicals is to store them in an approved corrosive storage cabinet like the Flinn wooden acid cabinet. Locked storage cabinets also provide secu- rity against theft and vandalism.
Flinn wood acid cabinets are designed specifically for high school chemical storerooms. Made from nine-ply, high-density plywood, Flinn acid cabinets are guaranteed never to rust or corrode.
Flinn acid cabinets will provide long life and safe, secure storage for all your corrosives.
See free video at flinnsci.com.
Optional polypropylene compartment to accommodate nitric acid is available.
Entirely constructed of 1" thick, high density, 9-ply plywood and finished with Super Chem-Tuff® Paint.
One fixed- position shelf included.
Interlocking wooden door assembly.
All polypropylene, .125'' thick.
Top recessed to include a liquid-tight polypropy- lene tray. Tray will hold 12 liters of spilled liquid. Use this top tray as a dispensing area.
* Must be shipped by motor truck freight.
Cabinet floor constructed with
a 2'' high liquid-tight trough to contain spillage and provide secondary containment.
Catalog No.
Description
Price/Each
SE8041
Flinn Acid Cabinet; Wood; interior PARTIALLY lined with polypropylene (floor, shelf and top tray)
$ 864.45*
SE8051
Flinn Acid Cabinet; Wood; interior COMPLETELY lined with polypropylene (floor, interior walls, interior top and top tray)
1108.40*
Flinn Acid Cabinets
• Wooden acid cabinets are safer and more durable than metal cabinets. • Acid attacks ALL metal cabinets.
• Nometalisusedanywhereintheinteriorconstructionof
Flinn/SciMatCo acid cabinets.