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Glycerol Triacetate CAS 102-76-1

Molecular Formula: C9H14O6

Formula Weight: 218.2

ZSpharmac: Glycerol Triacetate Supplement

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Product Name: Glycerol Triacetate
CAS No: 102-76-1
Purity: 99%

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Basic Info

Product Name:Glycerol Triacetate
Other Names:Triacetin, USP
CAS:102-76-1
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Clear Colorless Liquid
EINECS No.:203-051-9
Storage:Sealed in Dry,Room Temperature
Provide:Glycerol Triacetate MSDS;
Glycerol Triacetate COA

What is Glycerol Triacetate?

Glycerol Triacetate is a good solvent, plasticizer and moisturizing agent, and has a wide range of uses. The annual consumption of Glycerol Triacetate in my country has reached more than 10,000 tons. The main method of traditional production of triacetin in China is sulfuric acid catalysis. In recent years, several new catalysts have been studied, such as supported catalysts, heteropolyacid catalysts and solid superacid catalysts. These catalysts have the advantages of high catalytic activity and mild reaction conditions, but they still have disadvantages such as uneven distribution of catalyst acid sites, easy carbonization and coking, and easy loss of activity. In recent years, the research on the preparation of biodiesel using ionic liquids as catalysts has also become a hot topic. Ionic liquids are a new type of environmentally friendly liquid catalysts. Among them, acidic ionic liquids have the high-density reactivity of liquid acids and the non-volatility of solid acids, and have the potential to replace traditional industrial catalysts. At present, the ionic liquids used to prepare biodiesel are basically hydrophilic. After the reaction, the ionic liquids are mixed with the by-product glycerol and excess unreacted methanol. It is very difficult to separate glycerol and ionic liquids. A technical problem in the industrial application of diesel.

Glycerol Triacetate Property

Melting point 

3 °C(lit.)

Boiling point 

258-260 °C(lit.)

density 

1.16 g/mL at 25 °C(lit.)

vapor density 

7.52 (vs air)

vapor pressure 

0.00248 mm Hg @ 250C

refractive index 

n25/D 1.429-1.431(lit.)

Fp 

300 °F

storage temp. 

Sealed in dry,Room Temperature

solubility 

Soluble in water, miscible with ethanol (96 per cent) and toluene.

 

Glycerol Triacetate Uses

  1. Glycerol Triacetate is used as a plasticizer, a fixative for scents, a solvent for inks, as well as also for the synthesis of medications as well as dyes.
  2. Glycerol Triacetate is utilized as chromatographic fixative, solvent, toughener and scent fixative.
  3. Glycerol Triacetate serves as a humectant; service provider solvent; plasticizer; soaks up co2 from gas. According to the arrangements of my country’s GB 2760-96, it is permitted to be used in flavors.
  4. Glycerol Triacetate is used as scent fixative, solvent, toughening agent. It is used in the production of cosmetics, medicines and dyes, as a plasticizer for cigarette filter poles, and so on.
  5. Glycerol Triacetate is utilized as cigarette filter binder and flavor fixative, solvent, strengthening representative. And also can be made use of in cosmetics, casting, medication, dyes and also various other markets. This item is non-toxic and non-irritating.
  6. Glycerol Triacetate is utilized to figure out the substratum of lipase, fragrance fixative, solvent, gas chromatography fixative (optimum operating temperature level is 85 ° C, and the solvent is methanol as well as chloroform), as well as the gas and aldehyde are separated as well as assessed.

Preparation of Glycerol Triacetate

Method 1: A preparation method of high-content triacetin, using the acid-alcohol esterification reaction mechanism, the esterification reaction adopts rectification technology, and glycerol, glacial acetic acid, acid catalyst, and azeotropic water agent are added with rectification. The reaction is carried out in the reaction kettle of the tower, the condenser and the water separator, and the water produced by the reaction is continuously extracted at the top of the tower, and the azeotrope is refluxed into the tower. The crude product is sent to the acylation kettle, and deacidification is added after the acetic anhydride reaction to obtain the Glycerol Triacetate crude product; The dosage of activated carbon is 0.05-0.1% of the quality of the crude Glycerol Triacetate; after cleaning the filter system, add activated carbon as appropriate according to the clarification of the feed liquid during the reflux cycle.

Turn on the condenser to condense the water, turn on the heating oil valve to heat up, and at the same time introduce an appropriate amount of nitrogen for bubbling. Decolorization for 2.5-3 hours; when the temperature of the refining kettle reaches 110°C, control the vacuum degree ≤300pa, when the kettle temperature reaches 125°C, close the heat transfer oil heating valve, control 115°C, control the vacuum degree ≤300pa for fractionation, collect the first fraction, collect Then, it is pumped into the deacidification tank in the process of preparing the crude Glycerol Triacetate, and enters the next round of preparation. The reaction product is cooled with jacket cooling water, cooled to less than or equal to 60°C, and then the jacket residual water is drained. While cooling, the circulating filtration operation is carried out; the 1000-mesh wool felt filter is used for circulating filtration, and the pressure during circulating filtration is 0.2MPa. The carbon residue in the filter should be cleaned up before filtration.

After circulating filtration to obtain a clear and transparent feed liquid, press it into the finished product tank to obtain the refined Glycerol Triacetate; the content of the prepared triacetin product is ≥99.7%, the chromaticity is less than No. 15, and the acid value is ≤0.007%. Continuous refining of the crude product can remove impurities, reduce the moisture content, make the acid value of the product qualified and improve the bad smell of the product. Continuous refining can improve the refining yield to achieve the purpose of increasing the product content. :

Method 2: a preparation method of Glycerol Triacetate, comprising the following steps:

(1) Introduce glycerol and acetic acid into the reactor, and add catalyst and dehydrating agent at the same time;

(2) After the feeding is completed, the temperature of the reactor is raised, the vent valve of the reactor is opened, and after refluxing, the reflux rate is controlled to 1200~2000L/h, the temperature of the kettle is raised to 110℃, the temperature of the top of the kettle is controlled at 80~100℃, and the reflux liquid is collected, The whole process lasts 20 to 24 hours;

(3) Turn on the vacuum pump to carry out deacidification, and raise the temperature of the reaction kettle at the same time. When the temperature of the kettle rises to 135-140 °C, the deacidification is terminated, and acetic anhydride is added to the reaction kettle;

(4) Continue to heat the reactor to 140°C, keep the temperature for half an hour, and add barium hydroxide through the feeding port;

(5) Continue to heat the reaction kettle, when the temperature of the kettle reaches 200~205℃, turn on the vacuum pump to carry out vacuum distillation for 2~4 hours, and transfer the feed liquid in the kettle to the crude product storage tank;

(6) Pass the crude product through nitrogen pressure filtration to obtain the fine product and put it into storage.

Glycerol Triacetate Detection

Glycerol Triacetate is a commonly used plasticizer for cellulose acetate filter rods. The amount of Glycerol Triacetate directly affects the hardness, pressure drop, and shrinkage of the filter rod, which in turn affects the filtration efficiency of the filter rod and the smoking quality of cigarettes. To this end, the tobacco industry promulgated and implemented the “Glycerol Triacetate for Tobacco” (YC144-2008) standard in 2008. The standard requires that the purity of Glycerol Triacetate for cigarettes should reach more than 99%, and the normalization method is recommended for Glycerol Triacetate. The content of the product is tested.

Using ethanol as solvent and trans-anethole as internal standard, a polar capillary column was used for chromatographic separation, and gas chromatograph with FID detector was used for detection to establish an internal standard quantitative method for triacetin in plasticizers. . The results show that the method can accurately determine the purity of Glycerol Triacetate for tobacco, compared with the quantitative method recommended in “Glycerol Triacetate for Tobacco” (YC144-2008). The content of triacetin is in the range of 33% to 110%, the linear regression coefficient is > 0.999; the recovery rate is 95.4% to 105%, and the RSD is less than 1%. Compared with the normalization method recommended by YC/T144-2008, the method established in this paper can improve the accuracy of judging whether the product meets the requirements, thereby reducing the misjudgment of product quality.

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:

OUR MISSION
Help China Chemicals to benefit the happiness of human life
OUR VISSION
Become the most trusted chemical supplier in the world
OUR BUSINESS PHILOSOPHY
Striver – oriented, enrich employees, customer first, deep service, seek development
OUR VALUES
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: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food 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.

Service

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.

FAQ

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.

 

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.

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.

Shipping

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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