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Basic Rhodamine B - High-Quality Rose Red Dye from China Suppliers and Factory for Specialty Fireworks
Introduction
Basic Violet 10 commonly known as Rhodamine B or Basic Rhodamine B, is a triphenylmethane-based basic dye with strong fluorescence.
Physicochemical Properties
Basic Rhodamine B is easily identifiable due to its striking appearance and strong fluorescence.
Appearance
Dark greenish-purple or bright green shimmering crystals/powder.
Fluorescence
Aqueous solution exhibits a peach-pink fluorescence with a yellowish-green tinge.
Solubility
Easily soluble in water and ethanol; aqueous solution is blue-red; slightly soluble in acetone, chloroform, and sodium hydroxide solution.
Melting Point
Approximately 210-211°C (decomposes).
Chemical Properties
Reaction with Sulfuric Acid
Turns yellowish-brown with strong green fluorescence upon contact with concentrated sulfuric acid; upon dilution, turns bright red → blue-red → orange.
Reaction with Sodium Hydroxide
Aqueous solution with NaOH produces a rose-red color; heating produces a hairy precipitate.
Reaction with Hydrochloric Acid
Aqueous solution reacts with hydrochloric acid to precipitate fine green crystals.
Main Industrial and Scientific Applications
Basic Violet 10 (Basic Rhodamine B) has a wide range of applications, mainly focusing on the following:
Industrial Dyeing
Used in the paper industry for dyeing waxed paper and typing paper; used in the textile industry for dyeing acrylic, silk, hemp, wool, and other fabrics; also used for coloring leather, wood, and straw.
Pigment Production
Through reaction with substances such as phosphotungstic molybdic acid, it can produce lake pigments with high lightfastness and vibrant colors, used in the manufacture of paints, pigments, and inks.
Research Applications
In the laboratory, it is a classic fluorescent staining agent for observing cell morphology and structure; it can also be used as an adsorption indicator in analytical chemistry for titration analysis.
Other Industrial Applications
Due to its vibrant color and fluorescent effect, it is also used for coloring colored glass and specialty fireworks.
Safety and Regulations
Important Safety Warning
Industrial dye, strictly prohibited from ingestion. This is the most important information about "Basic Violet 10 (Basic Rhodamine B)": It is strictly prohibited for use in food. It is an industrial dye and may pose health risks.
Health Hazards
Harmful if ingested.
Serious risk of eye damage.
Environmental Impact: Harmful to aquatic life and may have long-lasting effects.
Handling and Storage
Personal Protection: Wear protective clothing, gloves, and goggles when handling.
Storage: Store in a cool, dry place in a sealed container.
Safety Guidelines
Skin Contact
Immediately remove contaminated clothing and wash with plenty of soap and water for at least 15 minutes.
Eye Contact
Immediately flush with plenty of water for at least 15 minutes and seek medical attention as soon as possible.
Ingestion
Seek immediate medical attention and show the doctor the chemical label. Do not induce vomiting in an unconscious person.
Spill Handling
Avoid dust generation. Clean up with a damp vacuum cleaner, or moisten the spilled material and transfer it to a sealed container for professional handling.
Packaging
Frequently Asked Questions
What is Basic Violet 10 commonly known as?
Basic Violet 10 is commonly known as Rhodamine B or Basic Rhodamine B. It is a triphenylmethane-based basic dye recognized for its intense color and strong fluorescent properties.
What are the key physical properties of Basic Rhodamine B?
It appears as dark greenish-purple or bright green shimmering crystals or powder. In aqueous solutions, it exhibits a distinct peach-pink fluorescence with a yellowish-green tinge.
Is Basic Violet 10 soluble in water?
Yes, Basic Violet 10 is easily soluble in water and ethanol, creating a blue-red solution. It is only slightly soluble in acetone, chloroform, and sodium hydroxide solutions.
Can Rhodamine B be used in food products?
No. Basic Violet 10 (Basic Rhodamine B) is an industrial dye and is strictly prohibited from use in food products due to potential health hazards and toxicity.
What are the main industrial applications of Basic Violet 10?
It is primarily used for dyeing waxed and typing paper, coloring acrylic, silk, wool, and hemp fabrics, and staining leather, wood, and straw. It is also used in pigment and ink manufacturing, as well as laboratory fluorescent staining.
How should a spill of Basic Violet 10 be handled?
Spill handling requires avoiding dust generation. Clean up should be done using a damp vacuum cleaner or by moistening the spilled material before transferring it to a sealed container for professional disposal.