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Safety Information

90107

Sigma-Aldrich

Gram′s iodine solution

for microscopy

Synonym(s):

Potassium Triiodide

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About This Item

UNSPSC Code:
12171500
NACRES:
MA.02

grade

for microscopy

Quality Level

100

product line

BioChemika

form

liquid

shelf life

limited shelf life, expiry date on the label

technique(s)

microbe id | staining: suitable

color

brown to very dark brown

refractive index

n20/D 1.335

density

1.005 g/mL at 20 °C

antibiotic activity spectrum

Gram-negative bacteria
Gram-positive bacteria

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

suitability

bacteria

Related Categories

Application

Gram’s iodine solution is used as a mordant in the Gram staining process. It is added after the primary staining step with Crystal Violet; the resultant Crystal Violet - Iodine complex imparts purple color to the cells.

Biochem/physiol Actions

Iodine(I) interacts with Crystal Violet(CV) to form large CV-I complexes within the cytoplasm and outer layers of the cell.

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

90107-250ML-F:
90107-2.5L-F:
90107-VAR-F:
90107-BULK-F:

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG6997
BCCG6999
BCCG6998
BCCG7001
BCCG7000

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