Phenolphthalein Indicator – Where to Buy Reliable Quality? D&H Chemical Offers Competitive Pricing

1. What is Phenolphthalein?

Phenolphthalein is a widely used pH indicator in analytical chemistry, especially in acid–base titrations. With its sharp color transition, phenolphthalein plays an essential role in laboratories, education, and industrial hygiene quality control.

• Also known as: Phenolphtalein, Phenolphatalein
• Molecular formula: C₂₀H₁₄O₄
• Color change properties:
  • Colorless at pH < 8.2
  • Pink to violet at pH 8.2 – 10.0
• Available forms: White crystalline powder or ethanol-based solution (0.5% – 1%)

2. Practical Applications of Phenolphthalein Indicator

A. Titration in Laboratories

Used to determine the equivalence point in acid–base reactions, essential in chemical, pharmaceutical, and food analysis.

B. Residual Alkali Detection After Cleaning

Phenolphthalein is widely applied to detect residual alkali (NaOH, KOH, etc.) after washing dishes, glasses, towels, or mattresses—ensuring no harmful chemical residues remain.

C. Educational & Training Use

A common pH indicator in chemistry education across schools, universities, and vocational training centers.

D. Application in Water Treatment

Used for quick pH checks, helping assess acidic or basic conditions in wastewater and industrial water treatment systems.

3. How to Use Phenolphthalein Indicator

• Residual alkali test: Apply a few drops to the surface → If it turns pink, residual alkali is present.
• In titration: Add 1–2 drops to the solution → Observe the color change to determine the endpoint.
• Note: Store in a dry, cool place, away from light. Reseal container tightly after use.

4. Why Buy Phenolphthalein from D&H Chemical?

D&H Chemical Solutions is a Vietnam-based manufacturer and distributor of phenolphthalein indicator, offering outstanding advantages:

• ✅ Locally produced with quality equivalent to Sigma and Merck
• ✅ Competitive prices, saving 20–40% compared to imported products
• ✅ Available in pure powder or pre-mixed solutions (0.5%, 1%)
• ✅ Comes with COA, MSDS, VAT invoice, and nationwide shipping
• ✅ Suitable for laboratories, factories, hotels, restaurants, and schools
• ✅ Custom formulation and private labeling upon request

Where to Buy Phenolphthalein in Vietnam?

???? D&H Chemical – Trusted Professional Supplier in Vietnam

???? Nationwide shipping | ???? Full documentation provided | ???? Free samples for large orders
???? Hotline/Zalo: +84 913 390 054
???? Email: [email protected]
???? Website: https://dhchemical.com.vn