alpha Naphtholphthalein
Price 1 INR/ Kilograms
alpha Naphtholphthalein Specification
- Grade
- Laboratory Reagent Grade
- Physical Form
- Powder
- Application
- Used as pH indicator in analytical chemistry
- Usage
- Used in laboratories for detecting pH changes in titration, research, and education
- Shelf Life
- 2 Years under proper storage conditions
- EINECS No
- 201-048-7
- Structural Formula
- [Structural formula image available upon request]
- Melting Point
- 238-240°C
- Appearance
- Fine blue to greenish powder
- Storage
- Store tightly sealed in a cool, dry place away from direct sunlight
- Molecular Formula
- C28H18O4
- Ingredients
- alpha-Naphtholphthalein pure compound
- Solubility
- Practically insoluble in water; soluble in alcohols and organic solvents
- Smell
- Odorless
- Ph Level
- Indicator range pH 7.3-8.7
- Shape
- Crystalline or amorphous powder
- HS Code
- 29309020
- CAS No
- 77-62-3
- Poisonous
- Yes, harmful if ingested or inhaled
- Density
- 1.27 Gram per cubic centimeter(g/cm3)
- Taste
- Odorless, characteristic chemical
- Molecular Weight
- 418.45 g/mol
- Properties
- alpha-Naphtholphthalein is a chemical indicator used in acid-base titrations; shows color change over pH range 7.3 to 8.7.
- Product Type
- Organic Indicator
- Purity
- 99%
- Color Change
- Colorless to blue (at pH 7.3-8.7)
- UN Number
- Not regulated as dangerous goods
- Certificate of Analysis Available
- Yes, upon request
- Regulatory Status
- Complies with analytical standards
- Boiling Point
- Not applicable (decomposes before boiling)
- Synonyms
- 1,1'-Binaphthyl-2,2'-diol-3,3'-dicarboxylic acid anhydride; alpha-Naphtholphthalein indicator
- EC Number
- 201-048-7
- Packing Size
- Custom packaging available (typically 25g, 100g, 500g)
- Stability
- Stable under recommended storage conditions
- Hazard Statement
- Irritant (Xi), handle with care
- Packaging Type
- Sealed HDPE bottles or glass vials
alpha Naphtholphthalein Trade Information
- Minimum Order Quantity
- 25 Kilograms
- Supply Ability
- 100 Kilograms Per Week
- Delivery Time
- 1 Week
- Sample Available
- Yes
- Sample Policy
- Free samples are available
- Packaging Details
- Drum packing.
- Main Domestic Market
- All India
About alpha Naphtholphthalein
Features:
- Longer shelf life
- Correct formulation
- Eco-friendly
- Non-hazardous
Reliable pH Indicator for Analytical Chemistry
Alpha Naphtholphthalein is valued for its effective color transition from colorless to blue within the pH range of 7.3 to 8.7. This property makes it an excellent choice for use in acid-base titrations, research, and educational applications. Its high purity and stable composition ensure reproducible results in laboratory environments.
Safe Packaging and Regulatory Compliance
Packaged in sealed HDPE bottles or glass vials according to custom sizes (typically 25g, 100g, and 500g), Alpha Naphtholphthalein is handled with care to maintain its stability and integrity. The product complies with analytical standards and is not classified as dangerous goods under UN regulations, offering confidence in both safety and quality for professional use.
Storage and Longevity
To preserve the quality and stability of Alpha Naphtholphthalein, it should be stored in a tightly sealed container in a cool, dry area away from direct sunlight. When correctly stored, the powder maintains a shelf life of up to two years, ensuring reliability for ongoing laboratory applications.
FAQs of alpha Naphtholphthalein:
Q: How should Alpha Naphtholphthalein be stored to ensure its stability and shelf life?
A: To maximize stability and maintain its two-year shelf life, Alpha Naphtholphthalein should be kept tightly sealed in its original container, stored in a cool, dry place away from direct sunlight and moisture.Q: What are the primary uses and benefits of Alpha Naphtholphthalein in laboratory settings?
A: Alpha Naphtholphthalein is primarily used as a pH indicator in acid-base titrations, research, and educational experiments. Its clear and distinct color change between pH 7.3 and 8.7 allows for accurate detection of chemical endpoints, benefiting analytical processes.Q: When is Alpha Naphtholphthalein most effective as a pH indicator?
A: This compound is most effective in solutions where the pH falls within 7.3 to 8.7, as it transitions from colorless to blue in this range, providing clear visual confirmation during titrations and other analytical procedures.Q: Where can Alpha Naphtholphthalein be purchased and in what packaging sizes is it available?
A: Alpha Naphtholphthalein is readily available from specialized chemical exporters, manufacturers, and suppliers in India. Standard packaging typically includes 25g, 100g, or 500g sealed HDPE bottles or glass vials, with custom sizes on request.Q: What safety precautions should be followed when handling Alpha Naphtholphthalein?
A: As Alpha Naphtholphthalein is classified as an irritant and harmful if ingested or inhaled, users should handle it with care, avoiding contact with skin, eyes, and clothing. Always use appropriate personal protective equipment such as gloves, goggles, and a lab coat.Q: How can I obtain a certificate of analysis or the structural formula image for Alpha Naphtholphthalein?
A: A certificate of analysis and a structural formula image are available upon request from the supplier. Simply contact your distributor or manufacturer, specifying your need for these documents with your order.Q: What is the process for dissolving Alpha Naphtholphthalein for laboratory use?
A: Although Alpha Naphtholphthalein is practically insoluble in water, it dissolves readily in alcohols and various organic solvents. To prepare a solution, weigh the required amount and mix with a suitable solvent under standard lab conditions.
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