
Dodecanedioic Acid CAS 693-23-2



Factory Supply Dodecanedioic Acid CAS 693-23-2 with Best Price
- Appearance: White powder
- Purity: 99. 0%min
- Stock: In stock
- Sample: Available
- Zhishang Chemical: Dodecanedioic Acid Supplier & Manufacturer
Dodecanedioic Acid: The Complete Guide
- Item 1: Basic Info
- Item 2: What is Dodecanedioic Acid?
- Item 3: Dodecanedioic Acid Uses
- Item 4: The Manager has Something to Say
- Item 5: Application of Dodecanedioic Acid
- Item 6: Preparation of Dodecanedioic Acid
- Item 7: Quality Control of Dodecanedioic Acid
- Item 8: Hot Sale Products
- Item 9: Get Dodecanedioic Acid Quotation
Dodecanedioic Acid for Sale
Basic Info
Chemical Name: | Dodecanedioic Acid |
Other Name: | 1,10-Decanedicarboxylic acid |
CAS: | 693-23-2 |
EINECS: | 211-746-3 |
Type: | Pharmaceutical, pesticide, dye intermediates; Pharmaceutical raw materials; Organic raw materials |
Molecular Formula: | C12H22O4 |
Molecular Weight: | 230.3 |
Melting point | 127-129 °C (lit.) |
Boiling point | 245 °C/10 mmHg (lit.) |
density | 1,15 g/cm3 |
vapor pressure | 21 mm Hg ( 222 °C) |
RTECS | JR2370000 |
refractive index | 1.4437 (estimate) |
Fp | 220 °C |
storage temp. | Sealed in dry,Room Temperature |
solubility | ethanol: 0.1 g/mL, clear |
form | Pellets or Powder |
pka | 4.48±0.10(Predicted) |
color | White |
PH | 5 (H2O, 20℃)(aqueous suspension) |
Water Solubility | < 0.1 g/L (20 ºC) |
Sensitive | Air Sensitive |
BRN | 1782580 |
Stability: | Stable. Incompatible with strong oxidizing agents, reducing agents. Combustible. |
Brand Name: | Zhishang Chemical |
Provide: | Dodecanedioic Acid MSDS; Dodecanedioic Acid COA |
What is Dodecanedioic Acid?
Dodecanedioic acid is also known as lauric acid. It is an industrial product developed earlier among long-chain dibasic acids. It is mainly used in the synthesis of polymer materials, spices, medicines, etc. Among them, it is one of the most important uses to synthesize long carbon chain nylon (also known as polyamide resin) engineering plastics through polycondensation reaction between polycondensation monomer and diamine.
Cyclohexane reacts with hydrogen peroxide in methanol to generate cyclohexyl peroxide, and then catalyzes ring opening and dimerization to obtain dimethyl dodecanedioate. After refining, it saponifies to obtain dodecanedioic acid.
Dodecanedioic Acid Uses
- Dodecanedioic acid is also used as metal precipitant, saturated polyester modifier, powder coating and synthetic raw material of macrocyclic musk.
- The product can be condensed with hexamethylenediamine to produce engineering plastic nylon 6-12; the diester formed with alcohols such as octanol and butanol can be used as an extender for polyvinyl chloride, cellulose nitrate and cellulose acetate. Plasticizers, diesters synthesized with octanol are also used as high-grade lubricating oils for jet engines and gas turbines, or base oils for low-temperature greases; dodecanedioic acid can also be used as modifiers for saturated polyesters, metal precipitation Agents and spices, raw materials for special polyurethane.
- Dodecanedioic acid is mainly used in polyamide high-grade engineering plastics, long carbon chain nylon and its products, and is the main raw material for the production of nylon 1212, nylon 612 and nylon 1012. The ester derivatives formed by esterification with alcohols, such as dioctyl dodecanedioate and dibutyl dodecanedioate, can be used as plasticizers for polyvinyl chloride, cellulose acetate, and cellulose nitrate. Moreover, dioctyl esters can also be used as high-grade lubricating oils for jet engines and gas turbines, or base stocks for low-temperature greases.
The Manager has Something to Say

This is William, CEO of Zhishang Chemical Co., Ltd.
Welcome to visit our factory . As the top chemical manufacturer, we have been striving for product quality, innovation , R&D, and customer service for the past 7 years. In the next 10 years or even longer, we are committed to becoming the most reliable chemical supplier in the world , creating a well-known international brand trusted by customers, with the spirit of “one meter wide, ten thousand meters deep”, we continue to focus on product research and development, continue to focus on customer service, continue to improve the supply chain service system, to create a professional chemical supply service team, to achieve win-win long-term cooperation. Please feel free to contact us if you have any questions.
Contact Us
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- Phone: +86 176 5311 3209
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If you want to buy dodecanedioic acid, pls contact us to get a free quote.
Application of Dodecanedioic Acid
DDDA is used in preservatives, high-end coatings, paint materials, corrosion inhibitors, surfactants, and polymers. It is one of two precursors of engineering plastic nylon 612. The commercial nylon, once known as Qiana, was produced on a large scale using DDDA.
Medical Science
In patients with type 2 diabetes, DDDA proves that intravenous infusion can help maintain normal blood glucose and energy levels without increasing blood glucose load in this process.
Preparation of Dodecanedioic Acid
Add 400kg of ordinary dodecanedioic acid and 3kg of coconut shell activated carbon to 1000L90wt.% edible alcohol, make slurry in a 2m3 glass-lined decolorization kettle, heat up to 65°C, press filter with a 30m2 box-type underflow plate, and filter the filtrate through a precision filter Go to the crystallization tank, cool down to crystallize, cool down to 25°C, centrifuge, put the centrifuge into a clean glass-lined low-temperature washing tank, add 200L95wt.%, 15°C alcohol, stir evenly, centrifuge twice, put the centrifuge into the double cone Dry in a vacuum dryer, control the material temperature at 45°C±1°C, vacuum degree -0.085~-0.10MPa, dry until the moisture content is lower than 0.1wt.%, and finish drying to obtain 328kg of refined acid. Gas chromatographic determination of product single acid content 99.17wt.%, neutralization titration determination of total acid content 99.5wt.%, ester content was not detected, mother liquor and drying recovery alcohol distillation process with 30% liquid caustic soda to control the pH The value is 12, 1180L of alcohol is obtained by distillation, and the alcohol content is 92wt.%. Alcohol rectification of high boilers to produce mixed acids yielded 63.5kg of mixed acids with a total acid content of 98.5wt.%, a dodecanedioic acid content (gas chromatography) of 90.26wt.%, and a water content of 0.35wt.%.
① Adsorption and decolorization
In the dissolution reactor, put 1000 parts by weight of deionized water, add 180 parts by weight of crude dodecanedioic acid in dry weight under stirring, add 110 parts by weight of sodium hydroxide aqueous solution with a mass concentration of 30.3%, and heat up to 100 °C , the pH value is controlled between 6.0, after the material is completely dissolved, add 3 parts by weight of coconut shell-type activated carbon, and keep warm for 20 minutes for decolorization;
②Oxidative decolorization
Filter the material treated in step ① while it is hot, rinse the filter cake with hot water at 90°C, put the filtrate and flushing liquid into the oxidation decolorization reaction kettle, raise the temperature to 98°C, and control it at 5~ Within 10 minutes, add hydrogen peroxide with a mass content of 30%, oxidize and decolorize under stirring, and heat-preserve and oxidize for 2 hours at a temperature of 98-100°C to prepare acidified crystallization;
③Acid crystallization
a. Configuration of dilute sulfuric acid
In the dilute sulfuric acid preparation kettle, add 105 parts by weight of deionized water, under cooling and stirring, slowly add 40 parts by weight of 98.5% concentrated sulfuric acid dropwise to prepare dilute sulfuric acid with a mass percentage concentration of 27.2%, and cool to room temperature. ready to crystallize;
b. Acidification, crystallization
Slowly add the 27.2% dilute sulfuric acid prepared in step a into the dodecanedioic acid aqueous solution treated in step ② under stirring, control the acid precipitation temperature at 98°C, and crystallize for 1.5 hours. With the addition of dilute sulfuric acid, Fish scale crystals are constantly precipitated in the solution, and the pH value at the end of the acidification is controlled to be 3.0. After adding the acid, heat and stir for 15 minutes, cool down and crystallize, stop cooling when the temperature drops to 25°C, vacuum filter, and use 500 parts by weight of deionized The filter cake is washed with water, and the washing liquid is recovered and recycled as the solvent of the next batch;
④ Drying
The filter cake after vacuum filtration in step 3.b is dried at a temperature of 100-105° C.;
178 parts by weight of scale-like high-purity dodecanedioic acid crystals are obtained; the product yield is 98.9%.
Reference
- Dodecanedioic acid – WikiPedia
- [Chinese invention, Chinese invention authorized] CN201410830623.1 Purification method of dodecanedioic acid
Dodecanedioic Acid Supplier and Manufacturer
As a dodecanedioic acid supplier and manufacturer with a strict standard product quality system certificate, Zhishang Chemical has long been providing the best dodecanedioic acid raw materials to customers all over the world.
Over the years, relying on professional team experience and customer-centric team concept to meet customer needs in a timely manner, our company enjoys a high reputation in the world. At present, our company has served more than 6,000 customers and has established long-term cooperative relations with customers from many countries.
If you have a demand for dodecanedioic acid and related products, please contact our service staff Zhishang Chemical – White directly, and we will provide you with high-quality products at the best price.
Pre-Sales Service
* Prompt reply and 24 hours online, professional team to provide the best price and high-quality product.
* Sample testing support.
* Every batch of products will be tested to ensure its quality.
* The packing also can be according to the customers` requirement.
* Any inquiries will be replied to within 24 hours.
* We provide a Commerical Invoices, Packing Lists, Bills of loading, COA, Health certificates, and Origin certificates. 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 the sample is approved, we’ll begin mass production. Doing 100% inspection during production, then doing random inspection before packing.
What’s your MOQ?
Our MOQ is 1kg. But usually we accept less quantities, such as 100g on the condition that the sample charge is 100% paid.
Is there a discount?
The different quantity has different discount.
HOW TO CONFIRM THE PRODUCT QUALITY BEFORE PLACING ORDERS?
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.
Do you supply product report?
Yes. We’ll give you product analysis report before shipping.
1. ≤50kg, Express delivery recommended, usually called DDU service;
2. ≤500kg, Air shipping recommended, usually called FOB, CFR, or CIF service;
3. >500kg, sea shipping recommended, usually called FOB, CFR, or CIF service;
4. For high-value products, please select air shipping and express delivery for safe.
Quality Control of Dodecanedioic Acid

