The 1-(Alpha)-Naphtholphthalein Analytical Grade by Dinâmica, available at LojaLab, is an acid-base indicator from the phthalein dye class used to monitor pH changes near neutral and mildly alkaline conditions. In indicator solution, it shows a color transition approximately between pH 7.3 and 8.7, supporting visualization of endpoints and alkalinity changes in compatible methods.
Characteristics
- Organic indicator also known as alpha-naphtholphthalein
- Approximate pH transition range from 7.3 to 8.7
- Color change from pinkish-yellow to greenish-blue
- Beige to light-brown solid
- Different from 1-naphthol and phenolphthalein.
Applications
- Preparation of indicator solutions for compatible acid-base titrations
- Visualization of pH transitions near neutral and moderately alkaline conditions
- Quality control assays specifying alpha-naphtholphthalein
- Demonstrations and studies of acid-base equilibria and color indicators.
Technical Specifications
- Product: 1-(Alpha)-Naphtholphthalein Analytical Grade
- Brand: Dinâmica Química
- CAS number: 596-01-0
- Molecular formula: C28H18O4
- Molar mass: 418.45 g/mol
- Transition range: approximately pH 7.3 to 8.7
- Available quantity: 5 g.
Technical Data
| Physical state | Solid |
| Color | Beige to light brown |
| Melting/freezing point | 253 to 255 °C |
| Color transition | Pinkish-yellow to greenish-blue |
| PH range | 7.3 to 8.7 |
Frequently Asked Questions
What is 1-(Alpha)-Naphtholphthalein Analytical Grade used for?
The main applications of 1-(Alpha)-Naphtholphthalein Analytical Grade include preparation of indicator solutions for compatible acid-base titrations; visualization of pH transitions near neutral and moderately alkaline conditions.
What are the main characteristics of 1-(Alpha)-Naphtholphthalein Analytical Grade?
The characteristics listed for 1-(Alpha)-Naphtholphthalein Analytical Grade include organic indicator also known as alpha-naphtholphthalein; approximate pH transition range from 7.3 to 8.7.
How should 1-(Alpha)-Naphtholphthalein Analytical Grade be selected for a laboratory application?
Selection of 1-(Alpha)-Naphtholphthalein Analytical Grade should consider the grade, presentation, method requirements, and technical specifications described on this page.
What quantities of 1-(Alpha)-Naphtholphthalein Analytical Grade are available?
1-(Alpha)-Naphtholphthalein Analytical Grade is available in 5 g. For other quantities, recurring purchases, or larger requirements, contact the sales team to check availability and request a quotation.
How can companies and institutions purchase 1-(Alpha)-Naphtholphthalein Analytical Grade and request a formal quotation?
Companies, laboratories, educational institutions, and research organizations can purchase 1-(Alpha)-Naphtholphthalein Analytical Grade directly from LojaLab. For recurring purchases, internal approval processes, research funding, public procurement, or formal quotation requirements, contact the sales team.
Professional Use and Safety Guidance
This product is intended for professional use in scientific research, laboratory analysis, education, and compatible industrial applications.
Each product has its own handling, storage, and disposal requirements. Before use, consult the corresponding SDS and follow the manufacturer's instructions and the safety procedures adopted by the institution.
LojaLab provides guidance on product selection and provenance; defining the use protocol and verifying suitability for the final application are the responsibility of the purchasing professional or institution.
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