Grams Iodine

What is Gram's Iodine? Gram's Iodine is a prepared aqueous solution of iodine (I₂) and potassium iodide (KI), specifically formulated for use in the Gram staining method, a differential staining technique used to classify bacteria into Gram-positive and Gram-negative groups. The iodine acts as a mordant, forming a complex with crystal violet dye that becomes trapped in the thick peptidoglycan layer of Gram-positive bacteria. This step is critical for accurate microbial identification in clinical, research, and teaching laboratories.

Manufactured in the UK: Our Grams Iodine Solution is manufactured and bottled using non-toxic, chemical-resistant bottles, providing reliable and trusted quality to our customers.

Frequent Uses

Gram Stain Protocols
Used as a mordant in the Gram staining procedure, where it fixes the crystal violet dye within the cell walls of Gram-positive bacteria, aiding in bacterial classification.

Clinical Microbiology
Applied in diagnostic laboratories to help differentiate bacterial species in patient samples, supporting rapid and accurate diagnosis.

Educational Demonstrations
Widely used in teaching settings to illustrate bacterial morphology and staining reactions, helping students understand cell wall differences.

Research Laboratories
Essential in microbiological studies for preliminary classification of bacteria during culture and identification workflows.

• Used as a mordant in the Gram staining protocol

• Applied in diagnostic laboratories to help differentiate bacterial species in patient samples

• Widely used in teaching settings to illustrate bacterial morphology and staining reactions

• Essential in microbiological studies for preliminary classification of bacteria during culture and identification workflows.

Contains:
Iodine: <3%
Potassium Iodide: <6%

HS Code / Commodity Code: 3822900000

Hazard Phrases: H0001