Acrylonitrile
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Acrylonitrile

Name: China Acrylonitrile Manufacturers Suppliers - Good Price Acrylonitrile - Kaitai Petrochemical
Brand: Kaitai
SKU: 225867504

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Product Introduction

Custom-Made To Specifications

Purity inhibitors content impurities content furfural content free acid content

Why choose KAITAI

Rich Experience：Since established in 2004, we have focused on acrylate products for nearly 20 years and currently have more than 1,000 employees, including more than 100 R&D personnel.

Quality Assurance：We are one of the largest acrylic acid and acrylic ester manufacturers in China. The company has passed ISO9000 international quality certification and ISO 14000 environmental management system certification.

Professional Service：The service staff is online 24 hours a day, responding quickly and paying attention to each buyer's needs. We will try our best to meet the needs of most buyers, and there is no minimum order quantity.

Fast Delivery：Our acrylic acid esters are sold all over the world. The normal delivery time after placing an order is 10-15 days. We can deliver the goods to customers quickly and safely, and have won praise from customers.

What is Acrylonitrile

Acrylonitrile is an organic compound with the formula CH2CHCN and the structure H2C=CH−C≡N. It is a colorless, volatile liquid. It has a pungent odor of garlic or onions. Its molecular structure consists of a vinyl group (−CH=CH2) linked to a nitrile (−C≡N). It is an important monomer for the manufacture of useful plastics such as polyacrylonitrile. It is reactive and toxic at low doses. Acrylonitrile is one of the components of ABS plastic (Acrylonitrile butadiene styrene).

Physical Property of Acrylonitrile

Formula	C3H3N
Molar Mass	53.06 g/mol
Density	0.806 g/mL
Boiling Point	77 °C
Melting Point	-84 °C
Physical State	Liquid
Storage	Store at room temperature

Chemical Properties of Acrylonitrile

Solubility

Slightly soluble in water, easily soluble in organic solvents such as acetone, benzene, carbon tetrachloride, ether, ethanol and dimethylformamide. It is also easily soluble in inorganic salt water solutions such as sodium thiocyanate and zinc chloride.

Hazardous Characteristics

Its steam can become an explosive mixture when mixed with air. The explosion limit is 3.1-17% (volume), and the maximum allowable concentration in the air is 20ppm. It is flammable and explosive. There is a risk of explosion and combustion when exposed to fire, high temperature and oxidants.

Toxicity

It is a highly toxic substance. Acrylonitrile vapor can invade the human body through the respiratory tract, causing acute poisoning.

Crystal Structure of Acrylonitrile

The molecule is almost planar and the molecular planes are stacked at regular distances along an axis. The molecule takes a disordered structure since the N atom and the approximate center of the C=C double bond lie on the crystallographic mirror plane. This causes the C=C bond to be aligned to be in parallel or perpendicular arrangements to the neighboring ones along the stacking. If the solid state polymerization induced by radiation is carried out, the isotactic structure may be obtained for the parallel stacking and the syndiotactic structure may be obtained for the perpendicular stacking. Since the crystal structure is disordered, either structure or a structure with the two structures mixed (atactic structure) should be formed in the solid state polymerization.

Uses of Acrylonitrile

Acrylonitrile is used in the manufacture of acrylic and modacrylic fibres for use in clothing and textiles, such as fleece jumpers, sportswear, carpets and upholstery.

Acrylic fibres are also used as a precursor in the production of carbon fibre. It is used in the production of plastics and resins such as acrylonitrile-butadiene-styrene (ABS), styrene-acrylonitrile (SAN) and nitrile rubber for fuel hoses and O-ring seals.

Acrylonitrile is also used as a chemical intermediate in the production of other chemicals, such as acrylamide and adiponitrile.

Ammoxidation Process of Acrylonitrile

Acrylonitrile is manufactured by combining propylene, ammonia, and air in a process called ammoxidation. During ammoxidation, propylene, ammonia and air are fed through a catalyst at a high temperature. The vessel containing the chemical reaction is called a fluid bed reactor, where the powdered catalyst moves fluid-like throughout the reactor. This provides a large catalyst surface area for maximum exposure to the reactants.

Useful by-products, or co-products, from the ammoxidation reaction include Acetonitrile (CH3CN), which is used as an industrial and laboratory solvent in the production of insulin and antibiotics, and as a raw material in the production of naturally-occurring pesticides. Another coproduct, hydrogen cyanide (HCN), is used in the manufacture of polyamides, methyl methacrylate, amino acids, chelating agents and other industrial chemicals.

Standards and Guidelines of Acrylonitrile

01/

OSHA PEL (permissible exposure limit) = 2 ppm (skin) (averaged over an 8-hour workshift).

02/

OSHA STEL (short-term exposure limit) = 10 ppm (over a 15-minute time period).

03/

NIOSH IDLH (immediately dangerous to life or health) = 85 ppm.

04/

AIHA ERPG-2 (maximum airborne concentration below which it is believed that nearly all persons could be exposed for up to 1 hour without experiencing or developing irreversible or other serious health effects or symptoms that could impair their abilities to take protective action) = 35 ppm.

Health Effects of Acrylonitrile

Acrylonitrile is irritating to the skin, eyes, and respiratory tract.
Toxic effects range from headache, fatigue, dyspnea, nausea and vomiting to asphyxiation, lactic acidosis and cardiovascular collapse.
Toxic effects are due primarily to the bioreactivity of acrylonitrile with cellular proteins and to its epoxide intermediate that is mutagenic and genotoxic.
Toxicity is also due to the release of cyanide during the metabolism of acrylonitrile.

Storage and Transportation Instructions

Store in a cool, ventilated and dry warehouse away from fire and heat sources. The storage temperature should be below 30°C.
Do not store or transport together with oxidants, acids, alkalis, and amines.
Products must be checked for polymerization inhibitor content at all times so that safety measures can be taken.
When transporting, handle it with care to prevent damage to the container.
In the event of a leak, first cut off all fire sources, wear a gas mask and rubber gloves, rinse with water, and discharge the sewage into the wastewater system.
In the event of fire, use dry powder, solvent-resistant foam, and carbon dioxide to extinguish the fire. Keep fire scene containers cool with water.

Company Honor

Shandong Kaitai is one of the largest acrylic acid and acrylic ester manufacturers in China. It has obtained the national "Three Systems" qualification certification and is the Shandong Provincial Acrylate Engineering Technology Research Center.

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Our Factory

Shadong Kaitai currently has more than 1,000 employees, including more than 100 R&D personnel and 200 personnel with intermediate and senior professional titles.

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Frequently Asked Questions

Q: What is acrylonitrile used for?

A: Acrylonitrile is used in many industries. It is used to make certain plastics, rubbers, and chemicals, and in the past, as a pesticide. Some examples of workers at risk of being exposed to acrylonitrile include the following: Workers involved in the manufacturing of acrylic fibers and plastics.

Q: Why is acrylonitrile harmful?

A: Breathing Acrylonitrile can irritate the lungs causing coughing and/or shortness of breath. Higher exposures can cause a build-up of fluid in the lungs (pulmonary edema), a medical emergency, with severe shortness of breath.

Q: Where is acrylonitrile found?

A: Acrylonitrile in the environment can be found in air, soil, and water near industrial sites where it is made. Acrylonitrile evaporates easily. In air, acrylonitrile breaks down quickly (about half will disappear within 1 - 12 hours) by reacting with other chemicals and sunlight. Acrylonitrile dissolves in water where it is broken down by bacteria or will evaporate to the air. In soil, some of it will be broken down by bacteria, but most of it will evaporate to the air or filter to groundwater.

Q: Is acrylonitrile strong?

A: Acrylonitrile is a serious inhalation hazard and may be fatal if inhaled. Common acute symptoms are headache, nausea, dizziness, vomiting and hallucinations. Prolonged exposure can result in tremors, discoloration of skin, convulsions and possible death. Acrylonitrile is very toxic and a severe irritant.

Q: What is acrylonitrile made from?

A: Acrylonitrile is manufactured by combining propylene, ammonia, and air in a process called ammoxidation. During ammoxidation, propylene, ammonia and air are fed through a catalyst at a high temperature. The vessel containing the chemical reaction is called a fluid bed reactor, where the powdered catalyst moves fluid-like throughout the reactor.

Q: How do we get acrylonitrile?

A: Acrylonitrile is produced by catalytic ammoxidation of propylene, also known as the SOHIO process. In 2002, world production capacity was estimated at 5 million tonnes per year, rising to about 6 million tonnes by 2017. Acetonitrile and hydrogen cyanide are significant byproducts that are recovered for sale.

Q: What are the disadvantages of acrylonitrile?

A: To counterbalance these advantages, some ABS plastic disadvantages do exist. Its low melting point renders it inappropriate for high-temperature applications and medical implants. It has poor solvent and fatigue resistance too and doesn't stand up so well to UV exposure and weathering unless it is properly protected.

Q: Is acrylonitrile natural?

A: Acrylonitrile is a colorless, liquid, man-made chemical with a sharp, onion- or garlic-like odor. It can be dissolved in water and evaporates quickly. Acrylonitrile is used to make other chemicals such as plastics, synthetic rubber, and acrylic fibers.

Q: What is another name for acrylonitrile?

A: Synonyms for acrylonitrile are AN, acrylonitrile monomer, cyanoethylene, propenenitrile, vinyl cyanide, and VCN. Lewis structure shown below. In the space provided, draw a 3D hybrid orbital bonding picture of acrylonitrile.

Q: Is acrylonitrile safe?

A: Acrylonitrile is a highly toxic systemic poison that is absorbed well by inhalation, through the stomach, and through the skin. It is also irritating to the skin and eyes on direct contact. Positive-pressure, self-contained breathing apparatus (SCBA) is recommended in response situations that involve exposure to potentially unsafe levels of acrylonitrile vapor.

Q: What are the long term effects of acrylonitrile?

A: Long term occupational exposure to acrylonitrile by inhalation has been shown to give rise to adverse health effects on the central nervous system such as headache, insomnia, chest pains, general weakness, decreased working capacity, fatigue, general malaise and increased irritability.

Q: Does acrylonitrile dissolve in water?

A: Acrylonitrile is soluble in water and most common organic solvents such as acetone, benzene, carbon tetrachloride, ethyl acetate, and toluene. Acrylonitrile is a reactive chemical that polymerises spontaneously when heated, or in the presence of a strong alkali, and can explode when exposed to flame.

Q: What products contain acrylonitrile?

A: It is primarily used as a raw material in the manufacture of acrylic and modacrylic fibers, plastics (including acrylonitrile–butadiene–styrene (ABS), acrylonitrile acrylate (ASA), and styrene–acrylonitrile (SAN)), nitrile rubbers, nitrile barrier resins, adiponitrile, acrylamide, and acrylic acid.

Q: Is acrylonitrile natural or synthetic?

A: Synthetic. ABS is made up of three monomers: acrylonitrile, butadiene, and styrene: Acrylonitrile: It is a synthetic monomer. It is produced from propylene and ammonia.

Q: What are the acute effects of acrylonitrile?

A: Acute Effects: Workers exposed via inhalation to high levels of acrylonitrile for less than an hour experienced mucous membrane irritation, headaches, nausea, feelings of apprehension and nervous irritability; low grade anemia, leukocytosis, kidney irritation, and mild jaundice were also observed in the workers

Q: Is acrylonitrile organic or inorganic?

A: Acrylonitrile is an organic compound with the formula CH2CHCN. It is a colorless volatile liquid although commercial samples can be yellow due to impurities. It has a pungent odor of garlic or onions. In terms of its molecular structure, it consists of a vinyl group linked to a nitrile.

Q: How do you purify acrylonitrile?

A: A method for purifying acrylonitrile resulting in capital and operating cost savings consists of distilling a solution of acrylonitrile and impurities in a distillation column under vacuum, and removing the purified acrylonitrile as a vaporous sidestream from the column.

Q: What are some interesting facts about acrylonitrile?

A: Acrylonitrile is the chemical compound with the formula CH2CHCN. This pungent-smelling, colorless liquid often appears yellow due to impurities. It is an important monomer for the manufacture of useful plastics. In terms of its molecular structure, it consists of a vinyl group linked to a nitrile.

Q: Is acrylonitrile biodegradable?

A: The biodegradation of acetonitrile and acrylonitrile showed a two-step pathway, with the generation of acetamide followed by acetic acid and ammonia for acetonitrile or acrylamide followed by acrylic acid and ammonia for acrylonitrile.

Q: Which fiber is made from acrylonitrile?

A: Acrylic fibre. Acrylic fibre is synthesised through polymerisation of acrylonitrile (vinyl cyanide) and has the chemical name polyacrylonitrile (PAN) with the empirical formula where 'n' is the degree of polymerisation.

Q: What is the limit for acrylonitrile?

A: Permissible exposure limit (PEL) = 2 ppm. Potential for dermal absorption. Comprehensive standards for occupational exposure to acrylonitrile have been developed. Threshold limit value – time-weighted average (TLV-TWA) = 2 ppm.

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