Thymol Blue Indicator

Product Description

Thymol Blue Indicator (Code: 06250) is a high-purity acid–base indicator dye that appears as a red-brown to dark violet crystalline powder. It is a sulfonphthalein pH indicator exhibiting two distinct color transitions depending on solution pH, making it extremely useful in acid-base titrations and buffer preparation.

Thymol Blue is widely used in analytical chemistry, biochemical experiments, and educational laboratories. Its precise color changes in two pH ranges make it suitable for determining both strong and weak acid–base equilibria.

Key Features

• Product Code: 06250
• Chemical Name: Thymol Blue
• Synonyms: Thymolsulfonephthalein, Thymol Blue Indicator
• Molecular Formula: C₂₇H₃₀O₅S
• Molecular Weight: 466.59 g/mol
• CAS Number: 76-61-9
• Appearance: Red-brown to dark violet crystalline powder
• Purity: ≥99% (Indicator Grade)
• Solubility: Slightly soluble in water; soluble in alcohol and dilute alkali solutions
• pH Transition Range:
  • First Transition: pH 1.2 (red) → pH 2.8 (yellow)
  • Second Transition: pH 8.0 (yellow) → pH 9.6 (blue)

Applications

Laboratory & Research

• Acid–Base Indicator: Used in titrations and pH determination across two distinct ranges.
• Buffer Preparation: Helps visualize pH changes in standard buffer solutions.
• Analytical Chemistry: Ideal for precise pH monitoring in chemical and biochemical experiments.
• Teaching & Demonstration: Commonly used in educational laboratories for visualizing acid-base equilibria.

Industrial & Specialized Uses

• Water Quality Testing: Used to detect pH changes in environmental and wastewater samples.
• Pharmaceutical Research: Assists in formulation studies requiring precise pH control.
• Chemical Manufacturing: Applied in process control for pH-sensitive reactions.

Safety & Handling

• Hazard: May cause mild irritation to eyes, skin, and respiratory system. Avoid ingestion or inhalation of dust.
• Precautions: Handle with care. Use protective gloves, safety goggles, and a dust mask when handling powders. Work in a well-ventilated area.
• Storage: Store in tightly closed containers, away from light, heat, and moisture.
• Disposal: Dispose of according to local environmental and laboratory waste regulations.

Price in Bangladesh

Available in 5 g, 10 g, 25 g, and 50 g laboratory-grade packs.
Bulk and educational-grade quantities available on request.
Discounts offered for schools, colleges, and research institutions.

Why Choose Thymol Blue Indicator 06250 from M/S Bright Scientific Co.?

• High-purity (≥99%) indicator-grade Thymol Blue.
• Sharp and reliable color transitions across two pH ranges.
• Consistent quality ideal for laboratory and teaching use.
• Available in various packaging options for lab and bulk users.
• Nationwide delivery with trusted service and competitive pricing.

Contact Information

M/S Bright Scientific Co.
📞 Phone: 01711285976