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Home > Encyclopedia > Pentaerythritol

Pentaerythritol

Pentaerythritol structure
  • CAS No:

    115-77-5

  • Formula:

    C5H12O4

  • Synonyms:

    Auxitrans;Hydrafuca;pentaerythritol;pentaerythritol, calcium, zinc salt;pentaerythritol, sodium salt;2,2-bis(hydroxymethyl)propane-1,3-diol;Pentek;Tetramethylolmethane;Monopentaerythritol

  • China Export:

    From 2018.11 to 2019.11, total export volume of Pentaerythritol from China was 64,068,877KG while total export value was $124,118,452. The biggest proportion of exporting volume in the last 12 months was 11.99% in 2019.03.

  • Categories:

    Organic Chemistry  >  Alcohols, Phenols, Phenol Alcohols

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Description

Pentaerythritol is a white crystalline solid.Odorless.pentaerythritol: white crystallinecompound, C(CH2OH)4; m.p.260°C; b.p. 276°C (30 mmHg). It isused in making the explosive pentaerythritoltrinitrate and in producingresins and other organicproducts.Odorless white solid. Sinks and mixes slowly with water.

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Basic Attributes

  • 115-77-5

  • C5H12O4

  • 136.14600

  • 136.07400

  • 80.92000

  • -2.058

  • 204-104-9

  • WXZMFSXDPGVJKK-UHFFFAOYSA-N

  • 4

  • 4

  • 4

Characteristics

  • White crystals

  • 1.396

  • 257 °C

  • 276 °C30 mm Hg(lit.)

  • 240 °C

  • 1.548

  • H2O: 1 g/18 mL (15 ºC)

  • Storage Room low temperature ventilation drying

  • 2.38E-07mmHg at 25°C

  • Relative vapour density (air = 1): 4.7

  • Stable. Incompatible with strong acids, strong oxidizing agents, acid chlorides, acid anhydrides. Combustible.

Safety Information

  • 1.1D 1.1D

  • 3806900010

  • UN1987 Alcohols, n.o.s., Hazard Class: 3;Labels: 3-Flammable liquid.UN 0150 1.1D UN 0411 1.1D

  • 1

  • R33

  • S24/25

  • RZ2490000

  • Warehouse ventilation, dry at low temperature.

  • P264, P280, P305+P351+P338, P33, P313

  • H319

  • Flammable. Combustion produces stimulation of smoke.

  • Poisoning

Usage

Mainly used in the production of alkyd resins, as well as raw materials for the manufacture of inks, lubricants, plasticizers, surfactants, explosives and drugs; used as antistatic agents for resins and synthetic fibers, solvent conditioners, fiber oils, etc. ; Pentaerythritol is mainly used in the coating industry. It is a raw material for alkyd resin coatings. It can improve the hardness, gloss and durability of the coating film. It is also used as a raw material for rosin resin required for varnishes, paints and printing inks. , And can make smoldering paints, drying oils and Fangkong lubricants. The tetranitrate of pentaerythritol is a kind of high explosive (namely Tai'an); its fatty acid ester is a high-efficiency lubricant and polyvinyl chloride plasticizer; its epoxy derivative is the raw material for the production of non-isolated surfactants, pentaerythritol It is easy to form an authoritative complex with metals, and can also be used as a hard water softener in detergent formulations. In addition, it should also be used in the production of medicines and pesticides. Used in the coating industry, can also be used to prepare aviation lubricants, explosives, plasticizers, stabilizers; used as gas chromatography reagents and pesticides

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Production Methods

1 to formaldehyde and acetaldehyde as raw materials, in the presence of alkaline condensation agent derived reaction. When using sodium hydroxide as a condensing agent, known as the sodium method. The molar ratio of the raw materials is acetaldehyde: formaldehyde: alkali = 1.5: 6: 1.1-1.3. The sodium hydroxide solution was added to 37% formaldehyde solution, acetaldehyde was added under stirring, and the reaction was carried out at 25-32 ° C for 6-7h. By neutralization and filtration to obtain pentaerythritol. Consumption of raw materials fixed: formaldehyde (37%) 2880kg / t, acetaldehyde 350kg / t. When using calcium hydroxide as a condensing agent, known as the calcium method. The mole ratio of the raw materials is acetaldehyde: formaldehyde: lime = 1: 4.7: 0.7-0.8. Formaldehyde solution, 20% acetaldehyde solution and 25% lime milk were added into the reaction kettle and reacted at 60 ° C or lower. The color of the condensate changed from gray to green. Gradually cool down to 45 ° C into the acidification pot. The condensate was acidified to pH 2-2.5 with 60-70% sulfuric acid and the calcium sulphate was then removed using a filter press. The filtrate was ion-exchanged to remove residual calcium ions, and the drought was concentrated under reduced pressure. The gas phase temperature was maintained below 70 ° C and the degree of vacuum was maintained at 77.3 kPa. To the beginning of crystallization, the concentrated liquid into the crystallization tank, stirring cooling crystallization, centrifugal separation, washed with water to pH 3, wet finished products obtained by air drying. Calcium method of high consumption, waste and more problems. Consumption of raw materials fixed: formaldehyde (36.5%) 4700kg / t, acetaldehyde 550kg / t.
2. Pentaerythritol is formaldehyde and acetaldehyde as raw materials
3. Method: In a reaction flask equipped with a stirrer and a thermometer, add 800 g of paraformaldehyde (about 26.7 mol of formaldehyde), 5.5 L of water, 210 g (4.77 mol) of acetaldehyde in acetone, stir 180 g (3.22 mol) of finely divided lime was added portionwise. The rate of addition of quicklime was controlled, and the temperature of the reaction solution was raised to 50 ° C at about 0.5h. Continue heating lime, the maximum temperature does not exceed 55 ℃. After the addition, the reaction was continued for 3 h. The mixture was pale yellow. Filtration, dilute hydrochloric acid filtrate adjusted to the litmus paper is acidic, decolorization with activated carbon filter, almost colorless solution. Concentrate under reduced pressure until crystals begin to appear. Hot filter, filter paper with a small amount of hot water washing. Refrigerator placed crystallization. Filtration gave the first solid. Mother liquor to continue to concentrate, as above method, the second batch of products. And then concentrated, the third batch of products. Total products Pentaerythritol crude products of about 400g. With a small amount of hot water containing hydrochloric acid, activated carbon decolorization, appropriate concentration, according to the above method a number of precipitation crystallization, a total of pentaerythritol(1) 360-370 g, mp 257-260 ° C.

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Downstream Products

China Pentaerythritol Export Data

Data referenced from General Administration of Customs,P.R.China

2018.11-2019.11 China - America  Pentaerythritol Export Data

From 2018.11 to 2019.11, total export volume of Pentaerythritol from China to America was 2,181,165KG while total export value was $4,894,793. The biggest proportion of exporting volume in the last 12 months was 17.24% in 2019.04.

2018.11-2019.11 China Pentaerythritol Export Data

From 2018.11 to 2019.11, total export volume of Pentaerythritol from China was 64,068,877KG while total export value was $124,118,452. The biggest proportion of exporting volume in the last 12 months was 11.99% in 2019.03.

2018.11-2019.11 TOP10 Purchasing Countries' Export Data of Chinese Pentaerythritol

From 2018.11 to 2019.11, China has exported Pentaerythritol to 72 countries in total. Country ranks by import volume from high to low is Korea, Japan, Taiwan, India, Netherlands, Malaysia, Thailand, Iran, Indonesia, Vietnam. The highest export volume was China to Korea, accounting for 18.03% of the total volume of China.

Check Export Data for More Purchasing Countries

Purchasing Country Export Volume(KG) Export Percentage Export Value($)

Korea

11,552,860

18.03%

20,568,076

Japan

10,699,011

16.70%

24,740,936

Taiwan

6,149,087

9.60%

12,152,949

India

5,639,955

8.80%

10,456,850

Netherlands

3,088,400

4.82%

5,358,240

Malaysia

2,957,693

4.62%

5,308,921

Thailand

2,935,132

4.58%

5,719,532

Iran

2,848,850

4.45%

5,224,350

Indonesia

2,351,247

3.67%

4,787,151

Vietnam

2,296,637

3.58%

4,851,077

America

2,181,165

3.40%

4,894,793

Lithuania

1,744,000

2.72%

2,651,520

Turkey

1,050,250

1.64%

1,576,923

Saudi Arabia

855,000

1.33%

1,349,651

United Arab Emirates

746,500

1.17%

1,353,450

Sweden

608,000

0.95%

889,600

Canada

598,950

0.93%

1,018,753

Bangladesh

540,390

0.84%

676,514

Finland

512,000

0.80%

716,400

Germany

394,550

0.62%

922,306

Hongkong

313,565

0.49%

509,707

Singapore

310,530

0.48%

600,941

Pakistan

309,025

0.48%

510,646

Egypt

286,050

0.45%

510,989

Australia

278,205

0.43%

481,982

Russia

250,000

0.39%

417,693

Philippines

235,860

0.37%

455,408

Italy

229,677

0.36%

499,932

United Kingdom

219,375

0.34%

1,085,411

Uzbekistan

178,625

0.28%

285,525

Price Analysis

  • 2020-05-26

    Market supply is normal with stable price.(from Dylan Du)

  • 2020-05-19

    Market supply normal, price stable.(from Dylan Du)

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