Thymolphthalein Indicator

Product Description

Thymolphthalein Indicator (Code: 06255) is a high-purity, fine crystalline powder used as a pH indicator in acid–base titrations. It is a triarylmethane dye that exhibits a distinct color change from colorless to deep blue over a specific alkaline pH range. Known for its clarity and sharp transition, Thymolphthalein is widely used in analytical chemistry, educational experiments, and water quality testing.

In laboratory applications, it serves as a visual endpoint indicator in titrations involving weak acids and strong bases, while also being used in formulation studies, diagnostic tests, and indicator solutions.

Key Features

• Product Code: 06255
• Chemical Name: Thymolphthalein
• Synonyms: 3,3-Bis(4-hydroxy-2-methyl-5-isopropylphenyl)phthalide
• Molecular Formula: C₂₈H₃₀O₄
• Molecular Weight: 430.54 g/mol
• CAS Number: 125-20-2
• Appearance: White to pale yellow crystalline powder
• Purity: ≥99% (Indicator Grade)
• Solubility: Insoluble in water; soluble in ethanol and alkalis
• pH Transition Range: pH 9.3 (colorless) → pH 10.5 (deep blue)

Applications

Laboratory & Research

• Acid–Base Indicator: Ideal for detecting endpoints in titrations involving weak acids and strong bases.
• Analytical Reagent: Used in precise pH determinations and buffer studies.
• Educational Demonstrations: Commonly used in chemistry labs to visualize pH-dependent color changes.
• Formulation Studies: Applied in analytical testing of alkaline substances.

Industrial & Specialized Uses

• Water Quality Analysis: Helps in monitoring alkalinity and buffer systems.
• Pharmaceutical Analysis: Used in assays and pH control in formulation research.
• Chemical Manufacturing: Component in indicator mixtures and titration kits.

Safety & Handling

• Hazard: May cause mild irritation to skin, eyes, and respiratory tract. Avoid inhalation and ingestion.
• Precautions: Handle with care in a ventilated area. Use appropriate protective gloves, safety goggles, and lab coat.
• Storage: Store in a tightly closed container in a cool, dry, and well-ventilated area, away from strong acids or oxidizers.
• Disposal: Dispose of according to local environmental and laboratory waste disposal guidelines.

Price in Bangladesh

Available in 5 g, 10 g, 25 g, and 50 g laboratory-grade packs.
Bulk and institutional quantities available upon request.
Discounts available for educational and research organizations.

Why Choose Thymolphthalein Indicator 06255 from M/S Bright Scientific Co.?

• High-purity (≥99%) indicator-grade compound with sharp color transition.
• Consistent and reliable performance in laboratory and industrial applications.
• Available in laboratory and bulk packaging options.
• Nationwide distribution with competitive pricing.
• Trusted supplier for universities, schools, and analytical laboratories.

Contact Information

M/S Bright Scientific Co.
📞 Phone: 01711285976