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Crystal Violet (Gram's) solution for microscopy is a purple aqueous primary stain (typically 1% crystal violet in water or alcohol) used in the Gram staining technique to differentiate Gram-positive (purple) from Gram-negative (pink/red) bacteria based on cell wall peptidoglycan differences.
Composition and Preparation
Primary component: Crystal violet dye (gentian violet, CI 42555), often with ammonium oxalate for stability.
Standard formulation: 1% crystal violet solution, clear purple liquid suitable for microscopic staining.
Role: Initial stain binds to all bacterial cells; fixed by Gram's iodine mordant.
Staining Procedure
Prepare thin heat-fixed bacterial smear on slide.
Flood with Crystal Violet (Gram's) for 30–60 seconds, rinse gently with water.
Apply Gram's iodine 30–60 seconds, rinse; decolorize with ethanol/acetone 10–20 seconds, rinse; counterstain with safranin 30–60 seconds, rinse, dry, observe under oil immersion.
Results: Gram-positive retain violet (thick peptidoglycan); Gram-negative lose dye, take safranin (pink).
Properties and Handling
Appearance: Purple solution, light-sensitive; store dark.
Critical factor: Decolorization timing affects results; over-decolorizes Gram-positive to pink.
For catalog: “Crystal Violet (Gram’s) solution for microscopy, 1% purple stain, for bacterial differentiation in Gram procedure; Gram+ purple, Gram- pink/red
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Ferrous borate extra pure is a high-quality iron(II) borate compound (commonly referred to as iron(II) borate or ferrous borate), used predominantly in laboratory and industrial settings for applications that demand high purity standards. It typically appears as a fine, air-sensitive solid and is valued for its chemical stability under controlled conditions. The compound features a high degree of purity, making it especially suitable for analytical work, advanced research, and select industrial processes.
Product Description for Website
Ferrous borate extra pure (Iron(II) borate) is a premium-grade inorganic salt prepared to strict purity standards, ensuring low levels of contaminants and accurate stoichiometry for scientific and technical applications. The product is carefully processed and packaged to maintain its chemical integrity and support reliable results in laboratory analysis and synthesis.
Synonyms: Iron(II) borate, Ferrous borate
Chemical Formula: Fe(BO2)2 (hydrated forms and other stoichiometries possible)
Appearance: Pale solid, may be air-sensitive
Grade: Extra pure (analytical/research grade)
Applications: Used in specialized laboratory analyses, catalyst systems, advanced inorganic synthesis, and as a starting material in certain industrial applications where high purity is critical.
Key Features
High purity and controlled chemical analysis for reliable, reproducible results
Packaged with minimal contamination risk and maximum shelf-life
Suitable for use in chemical research, formulation, and manufacturing at the analytical level
Safety & Handling
Ferrous borate is generally stable under typical laboratory conditions but should be handled with care as it may be sensitive to atmospheric moisture and air. Use standard personal protective equipment and store in a tightly sealed container in a cool, dry environment.
This concise description is suitable for use as a base product summary or catalog entry for e-commerce or laboratory supply websites, ensuring clarity for research and procurement professionals.
Ferrous borate extra pure is a high-quality iron(II) borate compound (commonly referred to as iron(II) borate or ferrous borate), used predominantly in laboratory and industrial settings for applications that demand high purity standards. It typically appears as a fine, air-sensitive solid and is valued for its chemical stability under controlled conditions. The compound features a high degree of purity, making it especially suitable for analytical work, advanced research, and select industrial processes.
Product Description for Website
Ferrous borate extra pure (Iron(II) borate) is a premium-grade inorganic salt prepared to strict purity standards, ensuring low levels of contaminants and accurate stoichiometry for scientific and technical applications. The product is carefully processed and packaged to maintain its chemical integrity and support reliable results in laboratory analysis and synthesis.
Synonyms: Iron(II) borate, Ferrous borate
Chemical Formula: Fe(BO2)2 (hydrated forms and other stoichiometries possible)
Appearance: Pale solid, may be air-sensitive
Grade: Extra pure (analytical/research grade)
Applications: Used in specialized laboratory analyses, catalyst systems, advanced inorganic synthesis, and as a starting material in certain industrial applications where high purity is critical.
Key Features
High purity and controlled chemical analysis for reliable, reproducible results
Packaged with minimal contamination risk and maximum shelf-life
Suitable for use in chemical research, formulation, and manufacturing at the analytical level
Safety & Handling
Ferrous borate is generally stable under typical laboratory conditions but should be handled with care as it may be sensitive to atmospheric moisture and air. Use standard personal protective equipment and store in a tightly sealed container in a cool, dry environment.
This concise description is suitable for use as a base product summary or catalog entry for e-commerce or laboratory supply websites, ensuring clarity for research and procurement professionals.