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Acid Red 18 CAS 2611-82-7

Molecular Formula: C20H15N2NaO10S3

Formula Weight: 562.51

ZSpharmac: Acid Red 18 Raw Material Supplier

Product Name: Acid Red 18
CAS No: 2611-82-7
Purity: 99%

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Basic Info

Product Name:Acid Red 18
Other Names:Carmine
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Bordeaux to Brown Powder
EINECS No.:220-036-2
Storage:Room Temperature
Provide:Acid Red 18 MSDS;
Acid Red 18 COA

What is Acid Red 18?

They are commonly used in coloring and publishing procedures such as textiles and natural leather products. Azo color wastewater has complex composition, high concentration of organic matter, vast circulation, big changes in water top quality, high material of natural toxins, deep color, problem in biodegradation, and has a big amount of inorganic salts, sulfides, and so on. Furthermore, its dye molecules are hard to decay and can exist stably in water atmosphere and light problems. Its metabolites are hazardous and difficult-to-degrade natural substances with strong chemical security, and have the “three impacts” of carcinogenesis, teratogenesis, and mutagenesis. Azo color wastewater is a difficult-to-treat industrial wastewater. There are numerous treatment approaches. Amongst them, the electro-biological combining technique combines the benefits of organic methods and electrochemical approaches. It has the advantages of good treatment impact of refractory poisonous pollutants, low cost, very easy control, The equipment is straightforward and more. Acid Red 18 is a monoazo-based azo dye. There are experiments making use of electro-biological coupling technique to deal with substitute color wastewater prepared with Acid Red 18 to study the results of its therapy effectiveness and existing thickness.

Acid Red 18 Property

Melting point >300oC
density 1.772[at 20℃]
vapor pressure 0Pa at 25℃
storage temp. Inert atmosphere,Room Temperature
solubility DMSO (Slightly, Heated, Sonicated), Methanol (Slightly, Heated), Water (Slightly)
Colour Index 16255
form Powder
color Bordeaux to brown
Water Solubility 305.21g/L at 20℃


Acid Red 18 Uses

  1. Acid Red 18 is made use of as a food colorant, pharmaceutical and visual colorant.
  2. Acid Red 18 can be used for tinting wool, silk, nylon and straight printing of products. Because the coloring fastness and advancing household or industrial buildings are poor, and the shade is not as bright as acid red G, it is rarely used in woolen textiles. It can furthermore be made use of for coloring natural leather, paper, lumber items, plastics, ink, cosmetics, medicine, food, and so on.

Acid Red 18 Application

Acid Red 18 pigment is just one of the 6 edible artificial pigments presently authorized for use in my country. It is typically utilized in food, medicine, cosmetics, medical tools, cigarette, feed, edible product packaging, everyday chemicals, playthings and other locations. Instances of its applications are as abide by:

1. Prepare a lip balm with coconut oil as the primary sources, having the adhering to basic materials by weight: coconut oil 25 ~ 30, sesame oil 3 ~ 5, castor oil 3 ~ 5, beeswax 25 ~ 35, vitamin A 0.02 ~ 1. Vaseline 10 ~ 20, acid red 180.01 ~ 1, cetyl alcohol 2 ~ 3, preservative 0.1 ~ 1, preference 0.1 ~ 1; throughout prep work, first consist of coconut oil, sesame oil, castor oil, vitamin A, beeswax, and oil jelly, cetyl alcohol, cozy and melt after blending, mix just as, afterwards consist of acid red 18, preservatives, and significance, mix equally, pour into the mold, strengthen, demould, bundle, and the product prepares; the raw materials required for the item of the present innovation are all-natural and easy to acquire, and the price is minimized, the formula is clinical and reasonable, the manufacturing treatment is straightforward and feasible, and the energy consumption is decreased. It can not just tailor the mouth contour, make it captivating, adjust the skin color, make the lip skin fragile, beautiful and shiny, and show the appeal, it has remarkable market competition and economic advantages.

2. Prepare a pomegranate soft drink. It is made up of the abiding by materials partly by weight: 15-20 parts of pomegranate juice, 5-8 parts of salt citrate, 5-8 parts of tea polyphenols, 3-5 parts of vitamin C, 3-5 parts of sweetener, and emulsifier 3-5 elements, white sugar 5-10 components, potassium sorbate 3-5 components, co2 20-30 parts, acid red 181-3 components, washed water 20-25 parts. The pomegranate soda supplied by the technology gives a new preference for soda, which can meet the greater needs of clients, and pomegranate has the functions of minimizing warm, detoxing, advertising and marketing body fluids and quiting looseness of the bowels, and can enhance sodas in summer season to reduce warm. The result is much better. Both can decrease tummy acid and have double effects on stomach upkeep. Pomegranate soda is rich in nutrients and suitable for kids to consume.

3. Prepare a sesame seed treatment representative, which includes the adhering to energised parts: carbendazim, phoxim, chlorpyrifos, rooting powder, potassium dihydrogen phosphate, boron plant food, and acid red 18. The seed therapy representative of the here and now production has easy-to-obtain raw materials, very easy prep work strategy, and functional procedure. It mixes and synergizes insect control agents and plant nutrients with each other, and has the attributes of low toxicity, complete efficiency, high application worth, and low cost. With sesame seeds Seed coating can efficiently safeguard against and regulate sesame conditions such as fusarium wilt, damping off, and origin rot in the seed starting stage, in addition to underground insects such as cutworms, mole crickets, grubs, and wireworms, together with seeds from being eaten by birds. It can additionally supplement sesame nourishment in a timely manner., improve the germination speed of seeds, advertise the growth of seed startings, and various other results. The sesame seed treatment representative has the characteristics of high effectiveness, reduced poisoning, protection, eco-friendly friendliness, and little expense. It contributes to the standardization of sesame seeds and fulfills the requirements of contemporary and dependable farming.

4. Used to prepare a sort of pleasurable and sour crispy ginger. This process can generate ginger with plump body and bright red color, which is pleasant and sour crunchy ginger. The present moment growth is recognized through the adhering to technological remedy: choose fresh ginger that is neither old neither tender and wash it with water. After draining pipes, put it right into the pool and spray salt in between the layers to marinade it to make it at first dehydrated. After cutting into items, wash the ginger pieces with tidy water and soak them in a swimming pool filled with neat water. After taking them out, wash them with clean water, then placed them right into the jar, gather white vinegar to cover the ginger surface area, and consist of the acid liquified in boiling water. Red 18 liquid and lemon yellow fluid license the pigment to pass through right into the ginger pieces. The tinted ginger slices and white sugar are candied in a percentage of 1:1. After that place it in an iron pot and boil it to focus the sugar liquid.

Acid red 18 Production Method

(1) Preparation of carmine. Liquify sodium 1-naphthylamine-4-sulfonate in 8-9 times the quantity (mass) of water at 75-85 ° C, filter and cool to 0-5 ° C; after that add 1.2-1.5 times the amount (mass) of the first sodium salt of hydrochloric acid, mix and permit stand to speed up fantastic 1-naphthylamine-4-sulfonic acid crystals, and cool it to listed below 5 ° C; slowly consist of 1:2 (mass) salt nitrite alternative at 3-5 ° C Perform diazotization to obtain a somewhat yellow pasty diazo liquid. After the feedback is completed, the product liquid will be highly acidic (showing blue) to the Congo red test paper.
Mix and liquify sodium G acid (sodium 2-naphthol-6,8-disulfonate) in 9-10 times (mass) of 60-65 ° C water, after that include part of the sodium carbonate (1/5 of the complete amount), After dissolving, filter; location the filtrate right into the reaction kettle, after that add the staying sodium carbonate, mix and cool down to 5-8 ° C; then gradually consist of diazo liquid at 10-15 ° C and pH 8 to carry out coupling response for a number of hours. After the action is finished (there is a mild extra of salt 2-naphthol-6,8-disulfonate), warmth it to 50-60 ° C, include fine-tuned sodium chloride, mix, and afterwards enable it typically cool to room temperature, and enable it stand to accelerate crystals. Mix and dissolve the crystals in 15 times the quantity (mass) of 70 ° C clean water, and consist of a proper amount of sodium carbonate to make the service rather alkaline. After filtering system, add fine-tuned salt, mix and transform the pH to 6.5-7.0 with hydrochloric acid, allow it represent condensation, splitting up and drying to acquire the item.
( 2) Preparation of carmine aluminum lake. Lightweight light weight aluminum hydroxide is prepared from light weight aluminum salts such as aluminum chloride and light weight aluminum sulfate and alkalis such as sodium carbonate, and is consisted of in a carmine liquid remedy to precipitate.

About Products:
If you need the cosmetic raw material Acid red 18, please contact our service staff directly, we will provide you with high-quality products at the best price.
As an experienced Acid red 18 manufacturer and supplier, our company, ZSpharmac, will provide Acid red 18 raw materials to customers around the world for a long time.
Over the years, the company has adhered to the spirit of “integrity management, strict quality control, and customer first” and has won unanimous praise from customers at home and abroad.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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