
PRODUCT
Description
1. Acid Violet 19 , Frequently referred to as acid fuchsin
Acid Violet 19 is a traditional triarylmethane based anionic dye with a Color Index variety of C.I. 42685. This substance comes from organic salts and exhibits anionic properties. Its molecular framework contains sulfonic acid groups, which allow it to dissolve well in water and grant it with acidic dye residential or commercial properties.
2. Physical features and morphology
Acid Violet 19 normally looks like a dark eco-friendly to dark green crystalline powder with a metallic appeal. It is easily soluble in water, with 1g of sample soluble in regarding 7ml of water, forming a brilliant purple red solution; Slightly soluble in ethanol. Its aqueous service will transform from red to colorless under solid alkaline problems of pH 12-14, and can be used as a pH indicator. On top of that, it is sensitive to humidity and needs to be secured and moisture-proof throughout storage space.
3. Market positioning and prep work history
Acid Violet 19 is prepared by sulfonation of aniline and has a secure placement in the field of chemical reagents. As one of the earliest acidic dyes made use of, it is recognized for its solid cells staining ability and chemical security. Although its appearance is a striking green powder, it launches its trademark purple red shade in solution, which makes it contribute as an “user interface bridge” in fabric dyeing and biomedical areas – it can strongly comply with protein fibers and provide clear aesthetic comparison.
Product Images & Packaging



Acid Violet 19 Parameters
| Acid Violet 19 Chemical Properties |
| Melting point | >250°C |
| density | 1.74[at 20℃] |
| bulk density | 920kg/m3 |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | room temp |
| solubility | H2O: soluble1mg/mL |
| form | Solid |
| Colour Index | 42685 |
| color | Very dark green |
| PH Range | 5(pink)-8(yellow) |
| PH | 3-4 (10g/l, H2O, 20℃) |
| Water Solubility | 14.3 g/100 mL |
| λmax | 546nm |
| Merck | 14,107 |
| BRN | 4111656 |
The application of Acid Violet 19
The primary uses Acid Violet 19
Acid Violet 19 plays an irreplaceable duty in various fields such as biomedical, commercial evaluation, and fabric printing and dyeing as a result of its high affinity for proteins and color growth features at various pH.
1.Biomedical and Histology
This is the most essential and irreplaceable application location of Acid Violet 19. In the pathology laboratory, it is just one of the core elements of Masson trichrome discoloration. This modern technology makes use of acid fuchsin to color the cytoplasm and fibrin of muscular tissue cells bright red, creating a sharp comparison with collagen fibers stained blue or eco-friendly, and is the gold criterion for identifying muscle tissue from connective tissue. On top of that, Acid Violet 19 is also an element of the Van Gieson staining technique, specifically made use of for differential discoloration of collagen fibers and muscle mass fibers. As a non-specific healthy protein color, it can plainly tarnish structures such as cytoplasm and extracellular matrix, and can be made use of for discoloring monitoring of microbial flagella.
2.Analytical Chemistry and Industrial Applications
In terms of commercial quality assurance, Acid Violet 19 is utilized to spot complimentary chlorine, which can rapidly identify the visibility of complimentary chlorine in water examples or examples through shade modifications. The procedure is easy and the outcomes are instinctive. On the other hand, it is likewise a pH indicator that undergoes a significant shade adjustment from red to colorless within the alkaline series of pH 12-14. Furthermore, the study also located that it can function as an inert tracer, and by adding it to the option, it can intuitively track the feeding course of pests, thereby studying the feeding actions of insects.
3.Fabric and Leather Industry
As a classic acid color, Acid Violet 19 is mostly made use of for dyeing healthy protein fibers such as wool, silk, and nylon. In a weakly acidic dye bathroom, dye particles will certainly form ionic bonds with the amino teams at the end of the fibers, offering the textile a bright and uniform purple red color, and possessing great light fastness. Based upon the same system, it is likewise widely utilized in the dyeing procedure of fur and natural leather to boost the look quality and commercial value of products.
Acid Violet 19 's Procurement Guide
Procurement Guidelines
1. Sample Policy
We can provide a 2-3g free trial package (shipping fee required)
2. Batch procurement
Packaging: 25kg/bag; 220kg/barrel; Special packaging according to your needs
MOQ:1kg
3. Customized services
Concentration customization (90% -99%)
Paeonol’s outsourcing services

FAQ
Acid Violet 19, additionally called acid fuchsin, comes from the triphenylmethane course. Its liquid option is red purple and functions as a triple representative for fabric dyeing, organic dyeing, and pH sign;
1.Textiles: woollen, silk, nylon, leather, paper;
2. Biology: histology, microbiology staining; three Chemistry: pH indicator.
Coming from ordinary acidic dyes, not dangerous goods; Prevent breathing in dirt during operation, rinse with clean water after skin get in touch with; Certified with traditional fabric environmental management needs.
Escrow and T/T in advance are highly recommended. We can accept Western Union, Money Gram and Paypal as well.
Related References
Manufacturer of Acid Violet 19
Zhishang Bio is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang Bio will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional Acid Violet 19 manufacturer, Zhi shang Bio has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Zhishang Bio is a professional enterprise engaged in the research and development, production, and sales of chemical raw materials. It has a strong supply chain system and strict quality control standards to ensure the provision of high-quality products with high purity and stability to customers.
Zhishang Bio’s core strength is its independent research and design capabilities. It has advanced production equipment, testing laboratories and can customize chemical raw materials to meet the market demands. This includes pharmaceuticals, electronic, coatings and agricultural applications.
Zhishang Bio’s supply chain management is based on long-term relationships with domestic and international suppliers of high quality to guarantee a stable supply, optimize logistic systems, and achieve efficient distribution. This helps reduce the cost of customer purchases.
We adhere to international environmental standards and we also adhere to the concept that environmental protection and safety production are important. All production processes must comply with these standards in order to guarantee that our products will be green and sustainable.
With a professional technical team and comprehensive after-sales service, Zhishang Bio can provide customers with precise technical support, solve application problems, and help customers enhance product competitiveness.
We are always customer-oriented and committed to becoming a trusted chemical raw material partner.
Zhishang Biography is dedicated to using clients extensive and expert service, including chemical raw material. The customers will certainly receive hassle-free, efficient and one-stop options.
1. Custom-made Supply Solutions
Zhishang Bio provides tailored services for clients in the chemical basic material sector, including special bit dimension, solvent residue control, stability optimizations and more. Clients can personalize their services to satisfy details requirements in industries such as drugs, electronic devices, and finishings.
2. Strict quality assurance
Zhishang Bio utilizes advanced screening equipment and stringent quality examination procedures, in addition to various other files, to guarantee that every batch of products is certified with international criteria such ISO GMP, REACH, and so on. Customers are also given with full quality records and conformity documents.
The supply chain is secure
Zhishang Bio has actually established lasting calculated collaborations with worldwide makers of top notch raw materials to make certain a secure supply, maximize the storage facility and logistics system, and assistance both small-scale examinations and large orders. It adjusted to the changing requirements of clients by responding flexibly to these changes.
4. Technical support
Zhishang Bio’s technical group can offer suggestions on product applications, formula optimization and analysis of industry patterns to aid clients fix technological troubles during production and boost item efficiency.
5. Efficient after-sales service
Zhishang Bio provides complete monitoring, reacts to client requests and delivers promptly. This will certainly make certain customer complete satisfaction.
Zhishang Biography intends to help consumers expand their service by providing the very best solutions and chemical resources.
DO YOU ACCEPT SAMPLE ORDER?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
WHAT’S YOUR MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
IS THERE A DISCOUNT?
Different quantity has different discount.
HOW TO CONFIRM WHETHER THE PRODUCT QUALITY MEETS OUR NEEDS BEFORE PLACING AN ORDER?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
LEARN MORE ABOUT US
Shandong Look Chemical
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
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