1 of 5000

|

Colour Art

Paper Art

Science Art

Detail Art

wood prints colour wood prints paper wood prints science wood prints detail wood prints lab wood prints test wood prints series wood prints acid wood prints glass bottle wood prints chemical wood prints laboratory wood prints chemistry wood prints close up wood prints

photographs colour photos paper photos science photos detail photos lab photos test photos series photos acid photos glass bottle photos chemical photos laboratory photos chemistry photos close up photos

Add This Artwork to Your Favorites Collection

Comment

Add This Artwork to Your Favorites Collection

Comment

pH of concentrated sulphuric acid being tested using universal indicator paper (close-up at upper right). Universal indicator paper is used to measure the strength of an acid or an alkali. When a sample of the solution is added to the paper, the paper changes colour depending on the solution's pH. Yellow is neutral (pH 7), whereas orange and red are acidic, and green and dark blue are alkaline. Here, the result is purple, which indicates a pH between 0 and 1, which is very acidic.

Science Photo Library (SPL) is the leading source of science images and footage. Sourced from scientific and medical experts, acclaimed photographers and renowned institutions, our content is unrivaled worldwide. Outstanding quality, accuracy and commitment to excellence are deeply embedded in our DNA. Science Photo Library inspires creative professionals and delivers engaging content of the highest quality for a wide range of clients in a variety of sectors. Visit sciencephoto.com for more information and stay connected on Twitter, LinkedIn, Instagram and Vimeo.