MALEIC ANHYDRIDE

PRODUCT DESCRIPTION

MALEIC ANHYDRIDE IS IMPORTANT ORGANIC ACID ANHYDRIDE RAW MATERIAL, CHEMICAL FORMULA C₄H₂O₃.
APPEARANCE: WHITE FLAKY OR PRISM‑SHAPED CRYSTAL, EASY TO SUBLIME.
EASY TO HYDROLYZE WHEN MEETING WATER TO FORM MALEIC ACID, MAINLY USED FOR SYNTHESIZING UNSATURATED POLYESTER RESIN, ALKYD RESIN AND OTHER POLYMER MATERIALS.
OUR INDUSTRIAL‑GRADE MALEIC ANHYDRIDE WITH HIGH PURITY, LOW IMPURITY CONTENT, STABLE BATCH‑TO‑BATCH QUALITY FOR LARGE‑VOLUME EXPORT ORDERS.
CAS NO.:108‑31‑6; HS CODE:29142200.

PRODUCT SPECIFICATIONS — INDUSTRIAL GRADE MALEIC ANHYDRIDE

TEST ITEM	TYPICAL SPECIFICATION
MALEIC ANHYDRIDE PURITY, %	99.5 MIN
APPEARANCE	WHITE FLAKY CRYSTAL
MELTING POINT, ℃	52.5‑53.0
ASH CONTENT, %	≤0.005
FREE ACID (AS MALEIC ACID), %	≤0.2
CAS NO.	108‑31‑6
HS CODE	29142200

SPECIFICATION DATA FOR REFERENCE ONLY, ACTUAL VALUE SUBJECT TO BATCH‑WISE CERTIFICATE OF ANALYSIS (COA).

MAIN APPLICATIONS

UNSATURATED POLYESTER RESIN: THE LARGEST CONSUMPTION FIELD, KEY RAW MATERIAL FOR UP‑RESIN SYNTHESIS.
ALKYD RESIN: RAW MATERIAL FOR PAINT‑GRADE ALKYD RESIN PRODUCTION.
CHEMICAL INTERMEDIATE: RAW MATERIAL FOR PRODUCING FUMARIC ACID, TARTARIC ACID, SUCCINIC ANHYDRIDE AND OTHER ORGANIC CHEMICALS.
ADDITIVE FIELD: USED FOR PAPER TREATMENT AGENT, ADHESIVE, SURFACTANT RAW MATERIAL.

PACKING & SHIPMENT

STANDARD EXPORT PACKAGE: 25KG COMPOUND PAPER BAG WITH PE INNER LINER (MOISTURE‑PROOF).
BULK OPTION: 1000KG FIBC JUMBO BAG AVAILABLE UPON CUSTOMER NEGOTIATION.
MALEIC ANHYDRIDE IS EASY TO ABSORB MOISTURE AND HYDROLYZE. KEEP PACKAGE TIGHTLY SEALED DURING TRANSPORTATION, STRICTLY PROTECT FROM RAIN AND HUMID AIR; AVOID VIOLENT HANDLING TO PREVENT BAG DAMAGE.

TRADE INFORMATION

SUPPLY CAPACITY: LARGE‑VOLUME INDUSTRIAL‑GRADE MALEIC ANHYDRIDE SUPPLY, DELIVERY SCHEDULE CONFIRMED PER ORDER.
PACKING DETAILS: 25KG PAPER BAG AS STANDARD; 1000KG JUMBO BAG ON REQUEST.
LOADING PORT: TO BE MUTUALLY AGREED BY BUYER AND SELLER.
INCOTERMS OPTIONS: FOB / CFR / CIF.
FULL SET EXPORT DOCUMENTS: COMMERCIAL INVOICE, PACKING LIST, BILL OF LADING, COA, CERTIFICATE OF ORIGIN, MSDS, SGS/THIRD‑PARTY INSPECTION REPORT IF REQUIRED.
SAMPLE SERVICE: 500G‑1KG SAMPLE AVAILABLE, BUYER COVER FREIGHT COST.

INSTRUCTIONS FOR USE

MALEIC ANHYDRIDE IS IRRITATING SOLID CHEMICAL RAW MATERIAL. OPERATORS SHALL RECEIVE HAZARDOUS CHEMICAL SAFETY TRAINING BEFORE OPERATION.
OPERATORS MUST WEAR DUST‑PROOF RESPIRATOR, CHEMICAL‑RESISTANT GOGGLES, ACID‑RESISTANT GLOVES AND DUST‑PROTECTIVE CLOTHING.
AVOID INHALATION OF CRYSTAL DUST AND SUBLIMATION VAPOUR; AVOID SKIN AND EYE CONTACT. IN CASE OF CONTACT, RINSE WITH LARGE QUANTITY OF RUNNING WATER FOR AT LEAST 15 MINUTES AND SEEK MEDICAL TREATMENT.
WORKSHOP NEEDS GOOD VENTILATION; PREVENT DUST DIFFUSION.
DO NOT MIX WITH WATER, STRONG ALKALI, STRONG OXIDIZING AGENTS.

STORAGE CONDITIONS

STORE IN COOL, DRY, WELL‑VENTILATED INDOOR WAREHOUSE. STRICTLY PREVENT MOISTURE AND HUMID AIR INFILTRATION; PROHIBIT OPEN‑AIR STACKING.
KEEP AWAY FROM HEAT SOURCE, FIRE, ALKALI, OXIDIZERS. ISOLATED STORAGE IS REQUIRED.
SEAL PACKAGES TIGHTLY AT ALL TIMES, CHECK PACKAGE SEALING CONDITION REGULARLY TO AVOID MOISTURE ABSORPTION AND HYDROLYSIS DETERIORATION.
WAREHOUSE SHALL BE EQUIPPED WITH DUST‑PROOF FACILITIES AND EMERGENCY WASHING FACILITIES.
SHELF‑LIFE: 12 MONTHS UNDER ORIGINAL SEALED PACKAGE AND DRY STORAGE ENVIRONMENT.

LARGE‑VOLUME SUPPLY FOR INDUSTRIAL‑GRADE MALEIC ANHYDRIDE C4H2O3 CRYSTAL. SEND YOUR REQUIREMENTS TO GET BEST OFFER, FULL SET OF EXPORT DOCUMENTS SUPPORT CUSTOMS CLEARANCE.