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Maleic anhydride 99 high purity hly 57

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Unit Price:

$1/MT FOB

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CAS No.:

108-31-6

Grade:

industrial Grade

Content:

99%

Port:

qingdao

Brand:

hly

Packaging:

200kg/Iron Drum

Sample Available:

Yes

Price valid (until):

2027-02-28

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Suqian City Hengliyuan Import and Export Trade Co., LTD

Company Type:

Trader

Location:

China

Payment Terms:

TT against B/L draft before shipment,100% TT in advance

Average Lead Time:

30 days

Qualification:

Main Products:

Acrylonitrile,Sodium biselenite methylamine solution,Methylamine [anhydrous],Zinc dust,Hydrogen peroxide solution [content >8%],Triisopropyl borate

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Product Details
Seller Information
Inquiry History

Description

Company Profile ----------
Suqian City Hengliyuan Import and Export Trade Co., LTD is a trading company. The company has introduced advanced scientific and technological achievements from home and abroad, and has superior products from well-known manufacturers at home and abroad. The basic functions are:
1. Domestic trade of various chemical raw materials;
2. Providing price information services and chemical raw material procurement for industrial enterprises;
3. Cooperating with Chinese state-owned enterprise factories, the price and quality are very advantageous.
At present, the company is relying on the combination of industry and trade and global procurement to steadily improve the company's value-added ability and compound competitiveness. We have always been committed to producing high-quality and low-cost goods, so we have been sincerely recognized by many customers. Our goal is to produce the best products and satisfy every customer with professional services and attitudes. We look forward to cooperating with you and establishing a win-win relationship with you. Please rest assured that we will definitely satisfy you.

----------packaging and delivery ---------

----------Our Advantages---------
High quality with competitive price
1) Standard:BP/USP/EP/Enterprise standard
2) All Purity≥99%
3) We can provide high quality products with factory price
2. Fast delivery
1) Fast shipment.Various transportation methods for your choice.
2) We have our own agent/remailer/distributor who can help us ship our products very fast , and we have stock in the ir for transferring.
3. Good communication and credit
1) Fast response to customer within 5 hours
2) Good business credit in Europe, US, Japan, Korea, Af r ica and so on.

Items	Specifications

Maleic Anhydride (MA / MAN) CAS 108-31-6 Full English Product Details

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Maleic Anhydride Structure

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Lab Reagent Packing

1. Basic Identification

IUPAC Name: Furan-2,5-dione
Common Names: Maleic anhydride, cis-Butenedioic anhydride, MAN, MA
CAS No.: 108-31-6
EC/EINECS No.: 203-571-6
EC Index No.: 607-096-00-9
MDL No.: MFCD00005518
Molecular Formula: $\boldsymbol{C_4H_2O_3}$
Molecular Weight: 98.06
SMILES: O=C1OC(=O)C=C1
HS Code: 29171400
UN Number: UN 2215
IMDG Hazard Class: Class 8 Corrosive Substance, Packing Group III
Signal Word: Danger

2. Physicochemical Properties

Appearance: White flaky crystalline solid with slight irritating acid odor
Melting Point: 51–56 °C
Boiling Point: 199–200 °C (760 mmHg)
Density (solid): 1.48 g/cm³
Bulk Density: 700–800 kg/m³
Vapor Pressure: 0.16 mmHg at 20 °C; Vapor Density = 3.4 (air=1)
Flash Point: 103 °C (closed cup)
Autoignition Temperature: 466 °C
Solubility:
- Soluble in water (rapid hydrolysis to maleic acid, strong exothermic reaction, pH ≈0.8 at 550g/L)
- Fully miscible in ethanol, acetone, benzene, toluene, chloroform, dioxane, ether
Stability: Highly hygroscopic; absorbs moisture and CO₂ from air to form maleic acid; incompatible with water, strong bases, oxidants, amines, active metals
Chemical Characteristic: Highly reactive unsaturated cyclic anhydride; undergoes addition, esterification, amidation, Diels-Alder polymerization

3. Standard COA Technical Specifications (Industrial Grade ≥99.5%)

Test Item	Standard Specification
Purity (Titration/GC)	≥99.5%
Melting Range	51.0 ~ 56.0 °C
Maleic Acid (Hydrolysis Impurity)	≤0.20%
Ash Residue	≤0.005%
Iron (Fe)	≤5 ppm
Color (APHA molten)	≤20, colorless melt
Moisture Content	≤0.05%
Single organic unknown impurity	≤0.10%

High-Purity Reagent Grade

Assay ≥99.9%, maleic acid ≤0.05%, ultra-low heavy metals for pharmaceutical & lab asymmetric synthesis

4. Main Industrial Applications

1. Unsaturated Polyester Resin (Largest Consumption)

Core co-monomer for unsaturated polyester resin (UPR) used in fiberglass composites, FRP boats, auto parts, construction panels, artificial stone, anticorrosion lining.

2. Plasticizer & Coating Raw Material

Esterified to produce maleate plasticizers for PVC, cellulose plastics
Raw material for alkyd resin, waterborne anticorrosion coating, road marking paint, printing ink binder

3. Fine Chemical & Surfactant Intermediate

Maleic anhydride graft copolymer for polymer compatibilizer (PP/PE modifier)
Raw material for sulfosuccinate anionic surfactants, textile wetting agents, detergent emulsifiers

4. Agricultural & Pesticide Intermediates

Precursor for herbicides, fungicides, plant growth regulators, pesticide emulsifier monomers.

5. Pharmaceutical & Food Additive

Intermediate for APIs, anti-inflammatory drugs, veterinary medicine
Raw material for food preservatives, tartaric acid production

6. Laboratory & Synthetic Reagent

Diels-Alder reaction standard dienophile
Crosslinking agent, anhydride derivatization reagent for chromatography testing

5. Export Packaging & Storage Transportation

Standard Packing Options

Industrial bulk: 25kg composite fiber drum with double PE inner liner, sealed moisture-proof cap
Ton bag: 1000kg woven jumbo bag with anti-moisture inner film
Reagent small packing: 500g / 1kg amber plastic sealed bottle

All pallets wrapped with waterproof stretch film for long sea transit

Storage & Transit Rules

Warehouse: Cool, dry, fully ventilated corrosive chemical warehouse, storage temperature ≤30°C
Containers must be airtight sealed at all times; avoid humid air to prevent deliquescence and acid generation
Strictly segregate from water, alkaline chemicals, oxidants, food raw materials, metal products
Transport as Class 8 corrosive dangerous goods; prevent rain exposure, package breakage and dust leakage during shipping

6. GHS Hazard Statements & Operation Protection (SDS Core)

Hazard Statements

H302: Harmful if swallowed
H313: May be harmful in contact with skin
H314: Causes severe skin burns and serious eye damage
H317: May cause allergic skin reaction
H334: May cause allergy, asthma or breathing difficulties if inhaled
H372: Causes organ damage (respiratory tract) through prolonged or repeated inhalation
H412: Harmful to aquatic life with long lasting effects

Mandatory PPE

Dust half-face respirator with particulate filter
Fully sealed chemical safety goggles / face shield
Acid-resistant thick nitrile rubber gloves
Impermeable full-body anti-corrosion protective overalls
Local exhaust ventilation for weighing, feeding and melting operations

Spill & First Aid Treatment

Spill disposal: Cover crystalline powder completely with dry sand; prohibit water contact; collect residues into sealed hazardous waste barrel, neutralize waste with dilute sodium carbonate solution
Skin contact: Remove contaminated clothing instantly, rinse skin with massive running clean water for ≥15 mins and seek medical care
Eye contact: Flush eyes continuously with clean running water for 15 mins and rush to hospital
Inhalation: Move victim to fresh air; supply oxygen if breathing difficulty occurs
Ingestion: Do NOT induce vomiting, drink large volume of clean water and receive emergency treatment quickly

7. Foreign Trade Selling Points

High purity ≥99.5%, ultra-low maleic acid impurity, stable polymerization performance for polyester resin factories
Double-layer anti-moisture sealed packaging, effectively avoid deliquescence and acid deterioration during long ocean transit
Two grades available: Industrial resin grade & high-purity lab reagent grade
Complete full set Class 8 dangerous goods export documents for smooth customs clearance
Flexible supply: Small trial drum orders, jumbo bag bulk mass orders acceptable

8. Full Set Export Supporting Documents

Batch Certificate of Analysis (COA)
English Version SDS Safety Data Sheet
Dangerous Goods Package Certificate
IMDG Maritime Dangerous Goods Declaration File
Certificate of Origin
Factory batch quality inspection report

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ECHEMI Editorial Reference

Colorless needles, white lumps, or pellets with an irritating, choking odor.

Certificates

Basic Info

Product Name:

Maleic anhydride

Other Name:

2,5-Furandione;Maleic anhydride;cis-Butenedioic anhydride;Maleic acid anhydride;Toxilic anhydride;Dihydro-2,5-dioxofuran;BM 10;Nourymix MA 901;Crystal Man;Crystal Man AB;NSC 137651;NSC 137652;NSC 137653;NSC 9568;HG 3-993-76;M 188;2,5-Dihydrofuran-2,5-dione;SY-A;WS 8201;GR 216;A 1018;Baolilong A 1018;HA 59;184288-31-1;1190407-73-8;1229972-04-6;1380217-40-2

CAS No.:

108-31-6

UN No.:

2215

Molecular Formula:

C4H2O3

InChIKeys:

InChIKey=FPYJFEHAWHCUMM-UHFFFAOYSA-N

Molecular Weight:

98.05688

Exact Mass:

98.06

BRN:

106909

EC Number:

203-571-6

HScode:

2917140000

Categories:

Carboxylic Acids and Derivatives

Characteristics

PSA:

43.37000

XLogP3:

-0.37

Appearance:

White powder

Density:

1.48 g/cm³

Melting Point:

52.8 °C

Boiling Point:

202.0 °C @ Press: 760 Torr

Flash Point:

218 °F

Refractive Index:

1.515

Water Solubility:

H2O: 79 g/100 mL (25 ºC)

Storage Conditions:

Store at RT.

Vapor Pressure:

0.16 mm Hg ( 20 °C)

Vapor Density:

3.4 (vs air)

Toxicity:

Oral-rat LD50: 708 mg/kg; Oral-Mouse LD50: 2400 mg/kg

Flammability characteristics:

Flammable; spicy and irritating smoke is released from the fire

Explosive limit:

1.4-7.1%(V)

Odor:

Pungent odor

PH:

pH of water solutions: 2.42 at 1X10-2 M; 2.62 at 5X10-3 M; 3.10 at 1X10-4 M

See More Maleic anhydride Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 4, Oral

Skin corrosion, Sub-category 1B

Serious eye damage, Category 1

Skin sensitization, Sub-category 1A

Respiratory sensitization, Category 1

Specific target organ toxicity â repeated exposure, Category 1

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H302 Harmful if swallowed H314 Causes severe skin burns and eye damage H317 May cause an allergic skin reaction H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled H372 Causes damage to organs through prolonged or repeated exposure
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P272 Contaminated work clothing should not be allowed out of the workplace. P284 [In case of inadequate ventilation] wear respiratory protection.
Response	P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth. P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P363 Wash contaminated clothing before reuse. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P316 Get emergency medical help immediately. P321 Specific treatment (see ... on this label). P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P317 Get medical help. P302+P352 IF ON SKIN: Wash with plenty of water/... P333+P317 If skin irritation or rash occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P342+P316 If experiencing respiratory symptoms: Get emergency medical help immediately. P319 Get medical help if you feel unwell.
Storage	P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Dry. Separated from strong oxidants, strong bases and food and feedstuffs.Keep container tightly closed in a dry and well-ventilated place. Moisture sensitive. Storage class (TRGS 510): Non-combustible, corrosive hazardous materials

See More Maleic anhydride Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Acrylonitrile,Sodium biselenite methylamine solution,Methylamine [anhydrous],Zinc dust,Hydrogen peroxide solution [content >8%],Triisopropyl borate

Location:
Shop No.15, 1st Floor, Building 12, Hengda Huafu, Sucheng District, Suqian City

Payment Terms:
TT against B/L draft before shipment,100% TT in advance

Average lead Time:
30 days

Total Annual Revenue:
Less than $1 million

Total Employees:
5-10

Year of Establishment:
2022
Company Overview

Suqian Hengliyuan Import and Export Corporation, Ltd. is a leading enterprise specializing in the international trade of chemical products. Established in Suqian, Jiangsu Province, China, our company has built a strong reputation for excellence and reliability in the chemical industry.

Our Mission

Our mission is to facilitate global trade by providing high-quality chemical products and exceptional service to our clients. We aim to be a bridge between manufacturers and end-users, ensuring the safe and efficient transfer of chemicals across borders.

Products and Services

We offer a comprehensive range of chemical products, including but not limited to:

Industrial Chemicals: Raw materials for various industries such as pharmaceuticals, agriculture, and manufacturing.

Specialty Chemicals: High-performance chemicals used in specific applications, including water treatment, coatings, and adhesives.

Bulk Chemicals: Large-volume chemicals for industrial processes and manufacturing needs.

Quality Assurance

At Suqian Hengliyuan Import and Export Corporation, Ltd., quality is our top priority. We adhere to stringent quality control measures and international standards to ensure that our products meet the highest levels of purity and performance. Our dedicated quality assurance team conducts rigorous inspections and testing to guarantee the integrity and safety of all our chemical products.

Global Network

Leveraging our extensive network of suppliers and partners, we are able to source and deliver a wide array of chemical products to clients worldwide. Our strategic partnerships and logistical expertise enable us to offer competitive pricing, timely delivery, and customized solutions to meet the diverse needs of our clients.

Commitment to Sustainability

We are committed to sustainable business practices and environmental stewardship. Our operations are designed to minimize environmental impact, and we continuously seek ways to improve our processes and reduce our carbon footprint. We work closely with our suppliers and customers to promote the responsible use and disposal of chemicals.

Customer Focus

Our clients are at the heart of everything we do. We pride ourselves on providing personalized service and building long-term relationships based on trust and mutual benefit. Our experienced team of professionals is dedicated to understanding our clients' needs and delivering solutions that exceed their expectations.

Inquiry History

223 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	Maleic anhydride	200 MT	Oct 25, 2026
India	Maleic Anhydride	5 MT	Oct 20, 2026
Hongkong, China	Maleic anhydride	250 MT	Oct 19, 2026
India	Maleic anhydride	25 MT	Sep 29, 2026
United States	Maleic Anhydride	500 KG	Sep 24, 2026
Egypt	Malic anhydride	2.00 20' Fcl	Sep 20, 2026
Bangladesh	Maleic Anhydride	20 MT	Sep 15, 2026
Saudi Arabia	MALEIC ANHYDRIDE	50 MT	Sep 13, 2026
India	Maleic anhydride	54 MT	Sep 11, 2026
United Arab Emirates	Maleic anhydride	3 20' Fcl	Sep 11, 2026
India	Maleic Anhydride	100 MT	Sep 7, 2026
Saudi Arabia	Maleic anhydride	20 MT	Sep 7, 2026
Pakistan	Meleic Anhydride	1.00 KG	Sep 3, 2026
Pakistan	Maleic Anhydride	2.00 20' Fcl	Sep 2, 2026
Egypt	Maleic Anhydride	150 MT	Sep 2, 2026
India	Maleic Anhydride	400 MT	Sep 1, 2026
India	Maleic Anhydride	1 20' Fcl	Aug 31, 2026
United Arab Emirates	Malic anhydride	200.00 MT	Aug 17, 2026
India	MALEIC ANHYDRIDE	150 MT	Aug 6, 2026
India	Maleic Anhydride	25 MT	Aug 6, 2026

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Maleic anhydride 99 high purity hly 57

Product Details

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