CTL Scientific Supply Corp. products

Pack Size: box of 100 strips. Hazard Class /UN Number: Not Restricted. Storage Temp: Room Temperature. Test sticks for the semi-quantitative determination of the total hardness (Ca 2+ , Mg 2+ ), carbonate hardness (HCO 3 û , CO 3 2û ) and the pH value of aquarium water.Ranges:total hardness 5¦ û 25 ¦dcarbonate hardness 3¦ û 20 ¦dpH value 6,4 û 8,4The total hardness of a water is caused by its content of calcium and magnesium salts (Ca 2+ , Mg 2+ ). When measuring the total hardness, the sum of these salts is determined.

Pack Size: box of 25. Hazard Class /UN Number: Not Restricted. Storage Temp: Room Temperature.

Pack Size: box of 100 strips. Hazard Class /UN Number: Not Restricted. Storage Temp: REF. Test paper for the detection of lactoperoxidase in milk.

Pack Size: box of 50 strips. Hazard Class /UN Number: Not Restricted. Storage Temp: REF. Test paper for the determination of alkaline phosphatase in milk.

Turmeric paper is a filter paper impregnated with curcumin, the yellow dye extracted from the roots of Curcuma tinctoria (yellow ginger). It is used to detect boric acid and borates.Color reaction: yellow « red; oxidizing agents and iodide interfereApplication: The solution to be tested is acidified with dilute hydrochloric acid (pH 1 û 2); the turmeric paper is dipped into this solution and allowed to dry. Depending on the borate concentration the yellow paper turns orange to red. When the dried reaction zone is dipped into concentrated sodium hydroxide solution (NaOH), it turns greenish-black in the presence of boron compounds. û The yellow turmeric paper will change color from yellow to brown-red with bases. Limit of sensitivity: 20 mg/l boron.