Reagent Collection

The Wider Image: Fighting tuberculosis in Perus village of hope
A health technician analyses blood samples for tuberculosis testing in a high-tech tuberculosis lab in Carabayllo in Lima, Peru May 19, 2016

Alchemical symbols, 18th century C013 / 5276
Alchemical symbols. 18th-century listing of characters and symbols used by alchemists to represent chemicals, elements, and other objects and processes

Litmus test strip in hydrochloric acid

Yeast and sugar solution turned into froth of carbon dioxide (anaerobic respiration)

Solutions of potassium and iodide in water and solution of lead nitrate in water being mixed together, turning yellow and forming a lead iodide

Litmus test strip in tap water

Three jars containing red cabbage juice, turned red by adding lemon (acid), green by adding soap (alkali), and blue with nothing added

Copper wire immersed in a clear silver nitrate solution

Two glass flasks of copper coils in silver salt solution, before and after chemical reaction, resulting in blue copper nitrate and silver crystals (displacement reaction)

Sample bottle F006 / 8657
Sample bottle

Bird flu diagnostic kit C015 / 8805
Bird flu diagnostic kit. Reagents for diagnosing influenza type a H7N9 infection in humans. This virus first emerged in the human population in China, in March 2013

Streptococcus grouping test C013 / 8759
Streptococcus grouping test. This is the Streptocard acid latex test, used to identify serotypes (subtypes) of beta-haemolytic Streptococcus bacteria

Streptococcus grouping test C013 / 8757
Streptococcus grouping test. This is the Streptocard acid latex test, used to identify serotypes (subtypes) of beta-haemolytic Streptococcus bacteria

Streptococcus grouping test C013 / 8758
Streptococcus grouping test. This is the Streptocard acid latex test, used to identify serotypes (subtypes) of beta-haemolytic Streptococcus bacteria

Streptococcus grouping test C013 / 8743
Streptococcus grouping test. This is the Streptocard acid latex test, used to identify serotypes (subtypes) of beta-haemolytic Streptococcus bacteria

Streptococcus grouping test C013 / 8742
Streptococcus grouping test. This is the Streptocard acid latex test, used to identify serotypes (subtypes) of beta-haemolytic Streptococcus bacteria

Streptococcus grouping test C013 / 8741
Streptococcus grouping test. This is the Streptocard acid latex test, used to identify serotypes (subtypes) of beta-haemolytic Streptococcus bacteria

Streptococcus grouping test C013 / 8740
Streptococcus grouping test. This is the Streptocard acid latex test, used to identify serotypes (subtypes) of beta-haemolytic Streptococcus bacteria

Streptococcus grouping test C013 / 8739
Streptococcus grouping test. This is the Streptocard acid latex test, used to identify serotypes (subtypes) of beta-haemolytic Streptococcus bacteria

Alchemical symbols, 18th century C013 / 5275
Alchemical symbols. 18th-century listing of characters and symbols used by alchemists to represent chemicals, elements, and other objects and processes

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"Unveiling the Mysteries: Exploring the World of Reagents" Step into the realm of reagents, where ancient alchemical symbols and 18th-century artifacts intertwine with modern scientific marvels. In this captivating journey, we delve into a village in Peru known as the "Village of Hope, " where tuberculosis is being fought relentlessly. Witness an enchanting litmus test strip immersed in hydrochloric acid, revealing vibrant colors that hint at unseen chemical reactions. Marvel at a frothy concoction formed by yeast and sugar solution undergoing anaerobic respiration, releasing carbon dioxide like tiny bubbles of life. Observe as solutions of potassium iodide and lead nitrate dance together in water, transforming from clear to yellow hues while giving birth to mesmerizing lead iodide crystals. A simple litmus test strip submerged in tap water unravels its hidden secrets, showcasing its true nature through vivid color changes. Three jars containing red cabbage juice become living canvases for acidity exploration; lemon turns it red (acid), soap renders it green (alkali), while leaving it untouched reveals a serene blue hue. Witness copper wire submerging itself gracefully into silver nitrate solution, creating an intricate interplay between metals. Two glass flasks housing copper coils immersed within silver salt solution demonstrate a breathtaking chemical reaction - witness their transformation from transparent to ethereal blue copper nitrate and shimmering silver crystals through displacement reactions. Amidst these wonders lies sample bottle F006 / 8657 - holding untold possibilities waiting to be unlocked. Bird flu diagnostic kits C015 / 8805 stand ready to detect invisible threats lurking within our midst. Meanwhile, streptococcus grouping tests C013 / 8759 offer hope for accurate identification and treatment plans against this notorious bacterium. In this world of reagents lies boundless potential for discovery and innovation – unlocking secrets both ancient and contemporary alike.