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Thermochromism
The way in which light is absorbed or reflected by a crystalline material is determined by the structure of the crystal. This crystal structure can be changed by the application of heat. In some cases this change is reversible and the original structure, and therefore, the original color, returns upon cooling. Two compounds are formed when metal salts are reacted with [HgI4]2- Ion. Each compound is heated on a hotplate and a change in color is noted. The initial color of the compound returns upon cooling.
Kit includes:
- Mercury (II) Chloride UN1624 - 25 g x 3 Bottles
- Potassium Iodide - 25 g x 3 Bottles
- Silver Nitrate UN1493 - 15 g x 1 Bottle
- Copper (II) Chloride, Anhydrous UN2802 - 25 g x 2 Bottles
Materials needed but not supplied:
- (# 6131-4) Beaker 250 ml - 15 pcs
- (# 6138-2) Erlenmeyer Flask 100 ml - 30 pcs
- (# 6138-5) Erlenmeyer Flask 250 ml - 30 pcs
- (# 5445-3) Funnels & (# 6201-6) Filter Paper - 30 pcs
- (# 3071-30) Hot Plates - 15 pcs
Please note that the pictures may show items not included in this kit, the pictures are there to show kit functionality. Please refer to the product details above for more information on the contents of this kit.
DOT: Small quantity exemption 173.4. This package conforms to 49 CFR 173.4 for domestic highway or rail transport only
*AP and the Advanced Placement Program are registered trademarks of the College Entrance Examination Board, which was not involved in the production of and does not endorse these products.
This product will only be shipped to Schools, Universities, or Companies. If you are an individual ordering this product, it will not be shipped to you. It will be deleted from your order and the rest of the order will be shipped without your confirmation. Please make sure you give a commercial address and not a residential address.
This product may be shipped directly from the manufacturer and can arrive in a separate shipment. There can be a delay if the manufacturer does not have this item in stock.
If this product contains Chemicals, it can only be shipped via Ground. Please do not select any other shipping method. It will delay your order.
RETURNS NOT ACCEPTED: To ensure no contamination, we have a NO RETURN policy for this product. Absolutely NO RETURNS even if the box / container is unopened.
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Thermochromism