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Phthalic anhydride (with >0.05% maleic anhydride) 99 high quality hly 57

COA 119 Inquiries

Unit Price:

$1/MT FOB

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CAS No.:

85-44-9

Grade:

industrial Grade

Content:

99.7%

Port:

qingdao

Brand:

hly

Packaging:

25kg/bagged

Price valid (until):

2027-02-28

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Suqian City Hengliyuan Import and Export Trade Co., LTD

Company Type:

Trader

Location:

China

Qualification:

Main Products:

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

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Product Description
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.

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----------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

Phthalic Anhydride (PA / Phthalic Anhydride) CAS 85-44-9 Full Export Specification

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Phthalic Anhydride Structural Formula

1. Basic Chemical Identification

IUPAC Name: Isobenzofuran-1,3-dione
Common Names: Phthalic anhydride, PA, Phthalic acid anhydride
CAS No.: 85-44-9
EINECS: 201-607-5
EC Index No.: 607-009-00-4
MDL No.: MFCD00005970
Molecular Formula: $\boldsymbol{C_8H_4O_3}$
Molecular Weight: 148.12
SMILES: O=C1OC(=O)c2ccccc12
HS Code: 29173410
UN Number: UN 2214
IMDG Hazard Class: Class 8 Corrosive Substance, Packing Group III
Signal Word: Danger

2. Physical & Chemical Properties

Appearance: White flake / needle crystal, mild acrid choking odor, easy sublimation at moderate temperature
Melting Point: 131–134 ℃
Boiling Point: 284 ℃
Density (solid 20℃): 1.53 g/cm³; Bulk density: 500–700 kg/m³
Flash Point (closed cup): 152 ℃
Autoignition Temperature: 545 ℃
Explosion Limit in Air: 1.04–10.4 vol% (dust-air mixture explosive risk)
Solubility: Slightly soluble in cold water (slowly hydrolyzes to phthalic acid); freely soluble in ethanol, acetone, benzene, ethyl acetate, pyridine
Stability: Stable under cool sealed storage; incompatible with water, strong alkalis, strong oxidants, amines; hydrolyzes to corrosive phthalic acid upon contact with moisture
Core Hazards: Corrosive to skin/eyes/respiratory tract; skin sensitizer, inhalation easily triggers asthma-like allergy; toxic to aquatic organisms

3. Standard COA Technical Specifications

Industrial Plasticizer Grade ≥99.5% (Main Bulk Export Grade)

Test Item	Standard Specification
Purity (Titration)	≥99.5 wt%
Melting Color (APHA)	≤20
Heat Color (APHA)	≤50
Sulfuric Acid Color Index	≤40
Maleic Anhydride Impurity	≤0.05%
Moisture Content	≤0.05%
Free Acid (Phthalic Acid)	≤0.10%
Heavy Metals (Pb)	≤10 ppm
Appearance	Uniform white flake crystal

High-Purity Reagent Grade ≥99.8%

Ultra-low free acid and color impurities, for lab synthesis, pharmaceutical intermediates and analytical standards

4. Main Industrial Applications

1. PVC Plasticizer Raw Material (Largest Consumption)

Core feedstock for DOP, DINP, DOTP, DIDP phthalate plasticizers, widely used in PVC film, artificial leather, cable sheath, plastic toys, flooring materials

2. Unsaturated Polyester Resin & Alkyd Resin

Unsaturated polyester for FRP fiberglass products, anti-corrosion tanks, yacht hulls, manhole covers
Alkyd resin for architectural paint, automotive primer, wood coating, printing ink binder

3. Dye & Pigment Intermediate

Synthesis of vat dyes, disperse dyes, phthalocyanine blue/green pigments, printing ink colorants

4. Pharmaceutical & Fine Chemical Intermediate

Raw material for saccharin, phthalimide, antibacterial drug intermediates, chelating agents and flame retardants

5. Rubber & Paper Auxiliary

Rubber modifier to improve elasticity and anti-aging performance; paper surface sizing agent to enhance water resistance

6. Laboratory Analytical Reagent

Standard anhydride substrate for alcohol/amine esterification, imide synthesis, acid-base titration experiments

5. Export Packaging & Storage Transportation

Standard Packing Options

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25kg Woven Bag Packing

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500kg Ton Jumbo Bag

25kg double-layer plastic lined woven bag (main export packing)
500kg / 1000kg ton jumbo bag with inner PE moisture-proof liner
Lab small packing: 500g / 1kg sealed plastic bottle

All pallets wrapped with waterproof light-shield stretch film

Storage Mandatory Rules

Warehouse: Cool, dry, ventilated Class 8 corrosive chemical warehouse, storage temp ≤30 ℃, humidity controlled below 70%
Fully sealed to prevent moisture absorption and hydrolysis; avoid dust floating and sublimation loss
Strict segregate from water sources, strong alkalis, oxidants, food raw materials and edible goods

Ocean Transport Rules

UN2214 Class8 Corrosive PG III; dedicated corrosive goods transport vehicle
Prohibited mixed loading with alkaline cargo, food and drinking water supplies; prevent rain soaking during sea transit
Complete set of dangerous goods export documents for global customs clearance

6. GHS Full Hazard Statements & Mandatory PPE

Hazard Statements

H302 Harmful if swallowed
H315 Causes skin irritation
H317 May cause allergic skin reaction
H318 Causes serious irreversible eye damage
H334 May cause asthma or breathing difficulties if inhaled (respiratory sensitizer)
H335 May cause respiratory tract irritation
H412 Harmful to aquatic life with long lasting toxic effects

Mandatory PPE

Dust half-face respirator with P3 high-efficiency particulate filter; full-face SCBA for bulk bag unloading
Double protection: fully sealed chemical safety goggles + full anti-dust splash face shield
Chemical resistant thick nitrile rubber gloves
Dust-proof impermeable full-body protective overalls + anti-dust rubber boots
Local negative-pressure exhaust ventilation system for weighing, feeding and melting operations

Spill & First Aid Emergency Treatment

Solid spill: Cover crystal flakes with dry inert sand to suppress dust; collect residues into airtight hazardous waste barrel; neutralize residual traces with soda ash dilute solution, prohibit direct water flushing
Skin contact: Immediately strip contaminated clothing, flush skin with massive soap running water continuously ≥30 minutes, seek hospital treatment for corrosive dermatitis
Eye contact: Irrigate eyes with steady clean running water non-stop for minimum 30 minutes, urgent ophthalmic treatment mandatory
Inhalation: Move victim to fresh air instantly, supply oxygen for cough, chest tightness and asthma attack symptoms
Ingestion: Do NOT induce vomiting; drink large volume milk to neutralize corrosive acid, deliver to hospital with SDS document

7. Foreign Trade Selling Advantages

Two complete grades: industrial plasticizer/resin bulk grade and high-purity lab reagent grade, low free acid and heat color to guarantee plasticizer resin transparency
Double-layer moisture-proof sealed packaging, no hydrolysis agglomeration during long-distance ocean shipping
Complete Class8 corrosive dangerous goods export document set: COA, English SDS, UN packaging certificate, IMDG maritime declaration, certificate of origin
Flexible supply: small trial 25kg bags, ton jumbo bags and full FCL container shipments acceptable
Stable esterification activity, widely supplied to global plasticizer, resin, coating and pigment manufacturers

8. Full Set Export Supporting Documents

Batch Certificate of Analysis (COA)
English SDS Safety Data Sheet
Dangerous Goods Packaging Qualification Certificate
IMDG Maritime Dangerous Goods Declaration File
Certificate of Origin
Heat color & free acid impurity inspection report

Certificates

Basic Info

Product Name:

Phthalic anhydride

Other Name:

1,3-Isobenzofurandione;Phthalic anhydride;ESEN;Phthalandione;1,3-Phthalandione;Phthalic acid anhydride;Retarder AK;Retarder ESEN;Retarder PD;1,2-Benzenedicarboxylic anhydride;Vulkalent B/C;TGL 6525;Araldite HT 901;HT 901;Phthalanhydride;Sconoc 7;Retarder B-C;NSC 10431;Sconoc 5;2-Benzofuran-1,3-dione;Rikacid PA;OP 392;ADP 1200;1,3-Dihydro-2-benzofuran-1,3-dione;39363-63-8

CAS No.:

85-44-9

Molecular Formula:

C8H4O3

InChIKeys:

InChIKey=LGRFSURHDFAFJT-UHFFFAOYSA-N

Molecular Weight:

148.116

Exact Mass:

148.016

HScode:

2917350000

Categories:

Alcohols, Phenols, Phenol Alcohols

Characteristics

PSA:

43.37

XLogP3:

0.9972

Appearance:

white crystalline solid with choking odour

Density:

1.53

Melting Point:

129-132ºC

Boiling Point:

284ºC

Flash Point:

152ºC

Refractive Index:

1.646

Water Solubility:

6 g/L (20 ºC)

Storage Conditions:

Store at RT.

Vapor Pressure:

<0.01 mm Hg ( 20 °C)

Vapor Density:

5.1 (vs air)

See More Phthalic anhydride Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 4, Oral

Skin irritation, Category 2

Serious eye damage, Category 1

Skin sensitization, Category 1

Specific target organ toxicity â single exposure, Category 3

Respiratory sensitization, Category 1

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H302 Harmful if swallowed H315 Causes skin irritation H318 Causes serious eye damage H317 May cause an allergic skin reaction H335 May cause respiratory irritation H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
Prevention	P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. 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. P271 Use only outdoors or in a well-ventilated area. P284 [In case of inadequate ventilation] wear respiratory protection.
Response	P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P321 Specific treatment (see ... on this label). P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. 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. P333+P317 If skin irritation or rash occurs: Get medical help. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P319 Get medical help if you feel unwell. P342+P316 If experiencing respiratory symptoms: Get emergency medical help immediately.
Storage	P403+P233 Store in a well-ventilated place. Keep container tightly closed. 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

Separated from combustible substances, reducing agents, strong oxidants, strong bases, strong acids and food and feedstuffs. See Chemical Dangers. Ventilation along the floor. Dry. Well closed.Chemical stability: Stable under recommended storage conditions.

See More Phthalic 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

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

119 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	Factory Supply Phthalic Anhydride/PA 99.9% CAS: 85-44-9	25 MT	Oct 27, 2023
India	Phthalic Anhydride	26 MT	Aug 29, 2024
Germany	Phthalic Anhydride	230 TON	Jul 22, 2024
Ireland	Phthalic Anhydride	20 TON	Apr 25, 2025
India	Phthalic Anhydride	20.00 MT	Feb 18, 2024
Qatar	Phthalic Anhydride	60.00 TON	May 23, 2024
Philippines	Phthalic Anhydride	20 MT	Jun 20, 2026
India	Phthalic Anhydride	450 MT	Jun 5, 2026
Bangladesh	Phthalic Anhydride	100 G	Apr 30, 2026
Bangladesh	Phthalic Anhydride	100 MT	Apr 26, 2026
Poland	Phthalic anhydride	3.00 20' Fcl	Mar 23, 2026
Saudi Arabia	Phthalic Anhydride	1.00 KG	Mar 3, 2026
Indonesia	Phthalic Anhydride	25 MT	Nov 18, 2025
Pakistan	Phthalic anhydride	8 20' Fcl	Jun 12, 2025
India	Phthalic Anhydride	300 MT	Jun 9, 2025
India	Phthalic Anhydride	20 MT	Jun 6, 2025
India	PHTHALIC ANHYDRIDE	26.00 MT	May 22, 2025
India	Phthalic Anhydride	300 MT	May 12, 2025
Bangladesh	PA	200 MT	Apr 15, 2025
Argentina	Anhídrido Ftálico	1 MT	Feb 28, 2025

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