{"product_id":"whatman-acid-alkali-ph-indicators-2600-601","title":"Whatman™ Acid-Alkali pH Indicators","description":"\u003cp\u003eBlue and red litmus paper and phenophthalein strips are mixed-indicator tests designed for fast, accurate, and reliable pH solution testing.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstant pH readings\u003c\/li\u003e\n\u003cli\u003eMixed-indicator\u003c\/li\u003e\n\u003cli\u003eAccurate for a wide range of routine pH testing\u003c\/li\u003e\n\u003cli\u003eConvenient and portable for field use\u003c\/li\u003e\n\u003cli\u003eChoice of blue and red litmus paper or phenophthalein strips\u003c\/li\u003e\n\u003cli\u003eColor change in pH solutions ranging from approximately 5 to 8\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUniversal indicators\u003c\/p\u003e\u003cp\u003eCytiva's acid-alkali litmus paper is impregnated with a mixture of pH indicators. They assume a color specific to sample pH upon contact with a sample.\n\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRed litmus paper turns blue in alkaline solutions\u003c\/li\u003e\n\u003cli\u003eBlue litmus paper turns red in acidic solutions\u003c\/li\u003e\n\u003cli\u003ePhenophthalein strips are colorless in acidic solutions and pink in basic solutions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe convenience of using indicator papers for the rapid determination of pH values has a variety of applications in laboratories and industry.\u003c\/p\u003e\u003cp\u003eBlue and red litmus papers\u003c\/p\u003e\u003cp\u003eThese easy-to-use test papers facilitate a general test for acid or alkaline reactions. Change in color occurs around pH 5 to 8. Blue and red litmus paper reels are particularly recommended for educational use.\u003c\/p\u003e\u003cp\u003ePhenophthalein reels\u003c\/p\u003e\u003cp\u003ePhenophthalein white paper changes to pink at pH 8.3 and becomes red at pH 10. These pH indicator strips are useful for the determination of the neutralization point in weak acid\/strong alkali reactions.\u003c\/p\u003e\u003cp\u003eLooking for a filter paper, membrane filter, or syringe filter? Let Cytiva help you \u003ca href=\"http:\/\/www.gelifesciences.com\/webapp\/wcs\/stores\/servlet\/catalog\/GELifeSciences\/service-and-support\/whatman-filter-selector\/\"\u003efind the optimal filter\u003c\/a\u003e for your needs to ensure reliable analysis.\u003c\/p\u003e","brand":"Cytiva","offers":[{"title":"Litmus blue, 10 books of 20 strips","offer_id":45982223794255,"sku":"2600-601","price":673.0,"currency_code":"ILS","in_stock":true},{"title":"Litmus red, 10 books of 20 strips","offer_id":45982223827023,"sku":"2600-602","price":673.0,"currency_code":"ILS","in_stock":true},{"title":"Reel, litmus blue","offer_id":45982223859791,"sku":"2600-201A","price":147.0,"currency_code":"ILS","in_stock":true},{"title":"Reel, litmus red","offer_id":45982223892559,"sku":"2600-202A","price":137.0,"currency_code":"ILS","in_stock":true},{"title":"Reel, phenophthalein","offer_id":45982223925327,"sku":"2600-204A","price":147.0,"currency_code":"ILS","in_stock":true},{"title":"Strip, litmus blue","offer_id":45982223958095,"sku":"10360300","price":147.0,"currency_code":"ILS","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/0748\/5519\/files\/digi-28651-original-png_2a8f5b9c-348b-45e3-9fcf-875da36fdf8a.png?v=1785959203","url":"https:\/\/www.danyel.co.il\/products\/whatman-acid-alkali-ph-indicators-2600-601","provider":"danyel biotech","version":"1.0","type":"link"}