Methylene Blue
CAS number:61-73-4
-
Molecular Formula:
C16H18N3S.Cl / C16H18ClN3S
-
Molecular Weight:
319.9 g/mol
-
Brief Introduction:
Methylene Blue (MB) is a widely used organic chloride dye with a molecular formula of C16H18N3ClS and a molecular weight of 319.85 g/mol. It has remarkable color characteristics and multiple applications. MB is not only used for dyeing silk, wool, cotton and paper, but also used as a redox indicator, antibacterial agent, antimalarial drug and antioxidant due to its unique chemical properties. MB has high solubility in water, can form a stable solution, and exhibits specific behavior in photocatalytic degradation, generating singlet and triplet species by absorbing light with a wavelength of 500-700 nm, and then undergoing self-decomposition. In recent years, research on MB photodegradation has been increasing, especially in the application of nanocatalytic materials. In addition, the adsorption removal technology of MB has also received widespread attention. Studies have shown that polymer nanocomposites and hydrogel nanocomposites as adsorbents exhibit excellent adsorption performance for MB, thanks to their high adsorption capacity and synergistic enhancement effect.
-
Properities:
Chemical Property Methylene blue molecules have a positively charged cationic group. [4] Adsorption Property This property enables methylene blue to be easily adsorbed to a variety of surfaces. [4] Occurrence MB can be discovered in industrial effluent from textiles, paper, printing, and leather processing. [4]
Effluent from the pharmaceutical sector, which uses MB as a staining agent in microbiological testing, might contain considerable levels of the dye. [4]
Applications Methylene blue is widely used in the textile, chemical, and biological industries. [1]
The pigment has been intensively researched for its application in dyeing textures, coloring biological materials in labs, and as a photosensitizer in photodynamic therapy for cancer therapy. [4]
Toxicity & Environmental Impact Methylene blue is also known for its toxicity and harmful effects on aquatic ecosystems. [1] Environmental Impact The presence of this dye in wastewater can lead to severe consequences for aquatic life and human health. [1] Degradation Method Photocatalytic degradation of methylene blue under 253.7 nm irradiation. [2] Removal Efficiency Highest 160 mg/L methylene blue removal (91.05%) was achieved by a geopolymer with Si/Al ratio of 2. [2] Photocatalytic Degradation Photocatalytic performance evaluated in the degradation of methylene blue dye. [3] Degradation Efficiency Under optimized conditions the degradation efficiency of dye reached 96% ± 0.5. [3] Substance Classification Among the most widely used, harmful and persistent substances in nature are industrial dyes. [3] Adsorption Target Activated carbon is highly effective in removing cationic dye, specifically methylene blue (MB), from wastewater. [4] Environmental Impact The release of methylene blue-rich effluent into bodies of water may have a negative impact on aquatic life and ecosystems. [4] Environmental Concern Increasing levels of water pollution, particularly due to synthetic dyes such as methylene blue, represent a significant environmental concern. [1] Toxicity (Aquatic Life) Methylene blue has been shown to be harmful to aquatic species such as fish, algae, and invertebrates, due to its ability to interfere with respiratory and metabolic functions. [4] Persistence Methylene blue persistence in the environment and capability to bioaccumulate offer long-term hazards. [4] Toxicity (Human Health) In terms of human health, Methylene Blue can cause skin and eye irritation. [4] Toxicity (Human Health) Prolonged or high-level exposure may lead to more serious repercussions, such as methemoglobinemia, a condition that reduces the blood's oxygen-carrying ability. [4] Water Pollution Water pollution caused by industrial dyes, such as methylene blue (MB), poses a significant environmental challenge due to its high toxicity and persistence. [5] Photodegradation Method Photodegradation of methylene blue using diatomite loaded with titanium dioxide (TiO2) nanoparticles. [5] Photodegradation Efficiency Achieving an efficiency of 80% in 270 min under natural sunlight. [5] -
References:
[1] - MoS2/NiO hybridized with reduced graphene oxide for glycerol and sorbitol electrooxidation
[2] - DFT study of the adsorption of glycerol on K2O (1 1 0) for biodiesel production
[3] - Induction conditions that promote the effect of glycerol on recombinant protein production in Escherichia coli
[4] - A clear-cut synthesis of silver nanoparticles using glycerol as a multipurpose medium toward catalytic hydrogenation and antibacterial
[5] - A clear-cut synthesis of silver nanoparticles using glycerol as a multipurpose medium toward catalytic hydrogenation and antibacterial
Dyes and Stains
Methylene Blue is commonly used as a dye, particularly in biological and medical applications, such as staining tissue samples for microscopy.
Redox Indicators
It is used as an indicator in redox titrations because it changes color depending on its oxidation state (blue when oxidized, colorless when reduced).
Antiseptics and Antimalarials
In medical contexts, Methylene Blue has been used as an antiseptic and as a treatment for conditions like methemoglobinemia and malaria.
Organic Compounds
It belongs to the class of organic compounds known as phenothiazines. It has a heterocyclic structure with nitrogen atoms and is a thiazine dye.
Pharmaceutical Compounds
It is used in medicine for various therapeutic purposes, including as a treatment for cyanide poisoning and as a diagnostic tool.
Biochemical Stains
Methylene Blue is utilized in biochemical research for staining proteins and other cellular components.
61-73-4 Suppliers
Shandong Haike Xinyuan Materials Technology Co., Ltd.
As a professional chemical product manufacturer, Shandong Haike Xinyuan Materials Co., Ltd. provides high-quality methylene blue products and has a good market reputation.
Jyoti Chemicals & Fertilizers
With certifications like GMP, ISO 9001-2015, ISO 14001-2015, and ISO 45001-2018, Jyoti Chemicals demonstrates its commitment to quality management systems, environmental responsibility, and occupational health and safety. The firm continues to expand its reach and improve its offerings, solidifying its position as a leader in the chemical industry.
