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Innovating Science™ Disappearing Rainbow
SCI_ED

Catalog No. S98653
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Disappearing Rainbow
WARNING: This product can expose you to chemicals including Phenolphthalein/Methanol/Methyl isobutyl ketone, which are known to the State of California to cause cancer, birth defects and reproductive harm.
WARNING: This product can expose you to chemicals including Phenolphthalein/Methanol/Methyl isobutyl ketone, which are known to the State of California to cause cancer, birth defects and reproductive harm.

Description

Includes

Materials for five demonstrations: 800 mL Sodium Hydroxide solution; 50 mL Sodium Hydroxide, 3M; 1 L Hydrochloric Acid, 0.01M; violet, blue, green, yellow, orange and red indicators; and instructions

Use acids and bases with three indicators to create a rainbow of colors.

  • In a basic solution, phenolphtalein is red, p-nitrophenol is yellow and thymolphthalein is blue
  • These can be combined in various ways to create all the colors of the rainbow
  • If done correctly, students only see the acid or base being poured, adding to the impressive display

Specifications

Product Type Disappearing Rainbow Demonstration Kit
Color White
Grade 7 to 14
Age 13 to 20
For Use With (Application) Use acids and bases with three indicators to create a rainbow of colors
Includes 25 mL Red indicator UN1170, 25 mL orange indicator UN1170, 25 mL yellow indicator UN1170, 25 mL green indicator UN1170, 25 mL blue indicator UN1170, 25 mL violet indicator UN1170, 2 x 30 mL Hydrochloric Acid 1N UN1789, 2 x 30 mL Sodium Hydroxide 1N UN1824, 30 mL Sodium Hydroxide Sol 6M (6N) UN1824
Quantity 1
Dimensions (L x W x H) 5.5 x 4.25 x 6.75 in.
Class Size 6 Lab Groups
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