Hydroxy Napthol Blue
Price 1 INR/ Kilograms
Hydroxy Napthol Blue Specification
- Ingredients
- Hydroxy Napthol Blue (main constituent), possible trace impurities
- Grade
- Laboratory, Analytical
- EINECS No
- 205-508-3
- Shelf Life
- 2 years (under recommended storage conditions)
- Purity
- 98%
- Storage
- Store in tightly closed container, in cool and dry place, protected from light
- Appearance
- Violet to dark blue powder
- Properties
- pH indicator, forms deep blue to violet color in alkaline environment, water soluble, stable under normal conditions
- Melting Point
- >300C (decomposes)
- Physical Form
- Powder
- CAS No
- 145-52-6
- Application
- Biochemistry, clinical diagnostics, laboratory indicator
- Molecular Formula
- C20H14N2O7S
- Molecular Weight
- 426.40 g/mol
- Shape
- Powdered solid
- Structural Formula
- [Structure not available as text]
- HS Code
- 3204.19.00
- Solubility
- Soluble in water; slightly soluble in ethanol
- Usage
- Used as a complexometric indicator especially for calcium titration
- Poisonous
- YES
- Smell
- Odorless
- Product Type
- Chemical compound / Indicator
- Ph Level
- Useful as pH indicator in pH 6.810.5 range
- pKa
- 7.5, 9.0 (indicative pKa values for indicator transitions)
- Synonyms
- Eriochrome Blue Black R, Mordant Blue 1
- EC Number
- 205-508-3
- Registration Status
- REACH registered for laboratory use
- Safety Precautions
- Use gloves, protective eyewear; avoid ingestion or inhalation
- Color Change Range
- Turns from red to blue between pH 6.8 to 10.5
- Boiling Point
- Not applicable (decomposes before boiling)
- Compatibility
- Compatible with most inorganic ions except strong oxidizers
- Stability
- Stable under recommended storage conditions
- Disposal
- Dispose as hazardous laboratory chemical according to local regulations
- Packaging
- Bottle or sealed bag, typically 10g, 25g, 50g, or 100g
Hydroxy Napthol Blue Trade Information
- Minimum Order Quantity
- 25 Kilograms
- Supply Ability
- 100 Kilograms Per Week
- Delivery Time
- 1 Week
About Hydroxy Napthol Blue
Features:
- Accurate pH value
- High effectiveness
- Non-toxic nature
- Longer shelf life
Distinctive Color Change Properties
Hydroxy Napthol Blue offers an impressive color transition between red and blue as pH shifts from 6.8 to 10.5. This makes it highly effective for visualizing endpoint changes in acid-base and complexometric titrations, notably in laboratories focused on biochemistry and diagnostics.
Safety and Handling Guidelines
Due to its poisonous nature, Hydroxy Napthol Blue should be handled exclusively with gloves and protective eyewear. Avoid direct ingestion or inhalation, and ensure proper storage in a tightly sealed container, kept cool, dry, and shielded from light to preserve stability.
Versatile Laboratory Applications
Primarily used as a complexometric indicator, especially for calcium titration, Hydroxy Napthol Blue is compatible with most inorganic ions aside from strong oxidizers. Its high water solubility and stability make it ideal for both routine and advanced analytical procedures.
FAQs of Hydroxy Napthol Blue:
Q: How is Hydroxy Napthol Blue typically used in laboratory settings?
A: Hydroxy Napthol Blue is most commonly employed as a complexometric indicator, particularly for titrating calcium ions. Its ability to clearly signal endpoint changes through distinct color transitions enhances analytical accuracy in biochemistry and clinical diagnostics.Q: What safety precautions are required when handling Hydroxy Napthol Blue?
A: Users should always wear gloves and protective eyewear when handling Hydroxy Napthol Blue. The compound is toxic and must be kept away from mouth and nose to prevent accidental ingestion or inhalation. Proper ventilation and strict laboratory safety protocols are essential.Q: When does Hydroxy Napthol Blue change color, and why is this important?
A: Hydroxy Napthol Blue shifts from red to blue between pH 6.8 and 10.5, with pKa values around 7.5 and 9.0. This property is crucial for precise endpoint determination in titrations, ensuring accurate results in chemical analyses.Q: Where should Hydroxy Napthol Blue be stored to maximize shelf life?
A: Store Hydroxy Napthol Blue in a tightly closed container, in a cool, dry location protected from light. This guarantees stability and maintains its two-year shelf life under standard laboratory conditions.Q: What is the recommended process for disposing of Hydroxy Napthol Blue?
A: Hydroxy Napthol Blue should be disposed of as hazardous laboratory waste. Adhere to local regulatory guidelines to ensure safe handling and environmental compliance during disposal.Q: What packaging options are available for Hydroxy Napthol Blue shipments?
A: Hydroxy Napthol Blue is usually supplied in bottles or sealed bags, with quantities ranging from 10g, 25g, 50g, to 100g, suitable for laboratory, export, and manufacturer needs.
Price:
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