It is a sky blue crystalline solid. Cobalt Chloride Test Paper [Vial of 100 Strips] for Water, Moisture and Humidity Detection, FREE Shipping on orders over $25 shipped by Amazon, 20” x 20” Reusable Cobalt Chloride Moisture & Leak Detection Cloth, 100PK Cobalt Chloride Test Papers for Testing Water Presence & Humidity - Eisco Labs, Cobalt Chloride Moisture and Humidity Detection Test Paper Vial of 100 Strips, Hammermill Colored Paper, 20 lb Blue Printer Paper, 8.5 x 11-1 Ream (500 Sheets) - Made in the USA, Pastel Paper. Cobalt(II) chloride is an inorganic compound of cobalt and chlorine, with the formula CoCl 2. Cobalt chloride paper is pink when moist and blue when dried at 40°C – 50°C. Extra large sheets up to 20x24" (500x600mm) can be ordered but there is a 100 sheet minimum. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. Festival of Sacrifice: The Past and Present of the Islamic Holiday of Eid al-Adha. Our Cobalt Chloride Test Paper can quickly and economically measure the presence of relative humidity in the atmosphere. Cobalt chloride test paper is responsive to 50% relative humidity and above, and any direct measure of an aqueous solution. Fact Check: What Power Does the President Really Have Over State Governors? Only 1 left in stock - order soon. This test paper is useful in difficult to reach places and recesses. Other uses are to detect the detection of moisture in crates during transportation where the presence of … Solution being pipetted on to a piece of cobalt chloride (CoCl2) paper. When testing for humidity, the experimenter can simply use cobalt chloride paper to detect airborne water particles. It is a convenient way to use cobalt chloride as a test for the presence of water. As humidity increases, cobalt chloride will shift from blue to pink, with a purplish color serving as the mid-phase hue between these two colors. Details. According to the American Chemistry Council, cobalt chloride has a crystalline structure that changes as the molecules shift to make room for water molecules, leading to the color change that makes this substance ideal for detecting the presence of humidity. There's a problem loading this menu right now. Our Cobalt Chloride test paper detects the presence of moisture. ), The Secret Science of Solving Crossword Puzzles, Racist Phrases to Remove From Your Mental Lexicon. Forms. a Dissolve 5 g of hydrated cobalt(II) chloride in 100 cm 3 of water (solution is TOXIC). Named for a shade of blue, cobalt chloride in liquid or paper form is toxic when ingested. If moisture is present, the test paper will turn from blue to a light pink/white color. Cobalt chloride test paper is responsive to 50% relative humidity and above, and any direct measure of an aqueous solution. c The filter paper can be cut into small strips and stored in a desiccator with dry silica gel. $8.89 $ 8. FREE Shipping. Cobalt chloride paper is pink when moist and blue when dried at 40°C – 50°C. Heat and humidity are two factors that help determine our outdoor comfort level in summer. 4.0 out of 5 stars 23. Image 2 of 2. 4.6 out of 5 stars 2. When water is present, cobalt (II) chloride (CoCl2) test paper changes its colour from blue (anhydrous CoCl2) to purple (dihydrate CoCl2 2H2O) to pink (hexahydrate CoCl2 6H2O). Cobalt chloride paper is used to indicate the presence of water - changing from blue to pink in a hydration reaction. Details Specs Reviews Related Products. When conducting experiments, wearing gloves can ensure the substance doesn't transfer to hands. Is the Coronavirus Crisis Increasing America's Drug Overdoses? You can use these larger 8x10" (200x250mm) cobalt chloride paper sheets for water vapor or cut then to the size you need. Cobalt chloride paper is used to test for the presence of water leaking through tiny cracks in pipes or porcelain. The paper is directly exposed to the atmosphere and turns from blue to pink upon contact with relative humidity greater than 2%. Buy Indigo™ cobalt chloride paper test strips to detect water in hard to reach places like tiny cracks & crevices; only $2.95 for one vial of 100 strips, save $$ on quantity. When heated, wet cobalt chloride paper can turn back from pink to blue as the water molecules are burned off and the original crystalline structure of the chemical is restored. As humidity increases, cobalt chloride will shift from blue to pink, with a purplish color serving as the mid-phase hue between these two colors. Cobalt chloride is an inorganic salt that is bright blue when it is not exposed to humidity. Available in various sheet sizes. Cobalt chloride test paper. Will 5G Impact Our Cell Phone Plans (or Our Health?! After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Time is fleeting. We’ve made it easier to discover products with sustainability certifications, as part of our commitment to help preserve the natural world. Buy cobalt chloride paper and make your own inexpensive water indicator paper tape for locating hard to find water leaks. They can also be used to indicate when desiccants such as silica gel are exhausted. Cobalt chloride paper is absorbent paper which has been soaked in cobalt chloride solution and allowed to dry. What Does Cobalt Chloride Paper Test For. If water is present, cobalt chloride will change colors from blue to purple to pink. Other uses are to detect the detection of moisture in crates during transportation where the presence of … Instructions: Place the test strip near recesses or areas where there may be cracks/leaks. b Soak filter paper in this solution, drain and dry in an oven (set at no more that 100°C), so that it is a definite blue colour. Cobalt chloride paper tests for the presence of water. 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