Name: Maleic acid
Synonym: NA 2215;Maleicaci;MALEIC ACID;malenicacid;TOXILIC ACID;maleinicacid;Malenic acid;MaleicAcidGr;MaleicAcidBp;acidemaleique
CAS: 110-16-7
EINECS No: 203-742-5
MF: C4H4O4
MW: 116.07
Putiry: 99% -101%
Appearance: White solid
MP: 137-140 °C(lit.)
BP: 275°C
FP: 127 °C
Loss on drying≤2.0%
Destiny: 1.59 g/mL at 25 °C(lit.)
storage temp: Store at RT.
Stability: Stable. Combustible. Incompatible with strong oxidizing agents, bases.
Water Solubility :790 g/L (25 ºC)
Certificate Of Authenticity:
| TITLE OF INDEX | INDEX | RESULT |
| APPEARANCE | WHITE PIECE CRYSTALLIZATION | Comfirm |
ASSAY(ASC4H4O4),% | 99.0~101.0 | 99.7 |
APPEARANCE OF SOLUTION | QUALIFIED | Confirm |
| STATE OF SOLUTION | CLARIFICATION | Comfirm |
| HEAVY METALS[Pb] mg/kg | ≤10 | < 10 |
| IRON[Fe] mg/kg | ≤5 | < 5 |
| FUMARIC ACID % | ≤1.5 | 0.051 |
SULPHATED ASH % | ≤0.1 | 0.04 |
| MOISTURE % | ≤2.0 | 0.33 |
specification of quality:
| Appearance | / | White crystalline powder |
| content | % | 99-101 |
| Melting point range | °C | 133~135 |
| Fe | ppm | 2 |
| ignition residue | % | 0.1 |
| Cl | % | 0.01 |
| sulfate | ppm | 5 |
Raw materials And Preparation Products:
Raw materials
Benzene-->Maleic anhydride-->1,2-Dimethylbenzene
Preparation Products
Fumaric acid-->L-Aspartic acid-->Succinic acid-->D-Tartaric acid-->Enalapril-->DL-Tartaric acid-->Dimethyl fumarate-->Malathion-->Irsogladine-->corrosion inhibitor PBTCA-type-->DL-Aspartic acid-->Captan-->Polymaleic acid-->2-Phosphonobutane-1,2,4-tricarboxylic acid-->Maleic acid-allyl alcohol copolymer-->Amlodipine-->Flupirtine-->Dibutyl maleate-->Chlorpheniramine maleate-->DL-Malic acid-->FUMARONITRILE-->sodium 1,1'-diphosphono propionyloxy phosphonate-->2-(Dimethylamino)-2-phenylbutyl 3,4,5-trimethoxybenzoate maleate-->Malic acid-->5-BROMO-2-METHOXYCINNAMIC ACID-->Mercaptosuccinic acid-->Deltibant
Application
Manufacture of unsaturate polyester resin, alkyd resin, insulate paint, plasticicer, pesticides,fumaric acid,maleic acid, malaic acid and tartaric acid, succinic acid , anhydride etc.It can be used antiseptic agent, also serve as the raw materials of medicine, paint, glass steel and so on.
The quality control process
1)Purchasing
Thorough market research, understand the price of raw materials and performance.To the procurement source to understand fully, and fully guarantee the quality of the procurement of raw materials.
2) Inspection
Four steps: sampling, sample pretreatment, measuring and data processing.
3) Producing
a)Each operator must do self-inspection of producs and make the corresponding inspection records.
b)Full-time inspectors through check the operator self-inspection, and review and sign in the corresponding record. Full-time inspection is responsible for inspection of finished product, and make the finished product incoming inspection records.
4) Before selling
Test result can be provided before selling.
Third-party detection institution is allowed if you are not satisfied with test results.
5) After-sales service:
1.We will ship the goods within 3days after get your payments.If you want to cancel or change order, please tell me within 24hours after you finish the payment...So we both can make the best of the bad bargain.
2.We will ship the goods that you order from us by EMS, DHL, UPS, or FedEx.We will decided to choose which courier depend on Different countries.To find the best way to delivery the goods for you.
3.As usual you can get the goods with in 4-7days.If the goods were lost or not received for other reasons, please contact me Immediately.
Factory price, pure injection, best credit.
Payment method: Escrow, Western Union, Paypal, TT, L/C.
Shipping method: Fedex, DHL, EMS or by SEA
Delivery time: within 3days after payment, 7-10days to arrive.
Our process:
1) Contact me about what you need and your quantity, we will quoted you details.
2) Finish the payment.
3) We will arrange to send parcel out within 3days after payment, when tracking number updates, we will email you.
4) Parcel delivered.
Offical website: http://www.czgpharmacy.com/.
Contact method:
Miss. Emily Wei
Tel: +86-18861115105
+86 0519 86879655
Fax:+86 0519 86474295
Established in 2000, Changzhou General Import and Export Corporation. Is a professional manufacturer and exporter that is concerned with the research, production and trading of pharmaceutical materials, including steriod series piperazidine series, pyrimidine series and other interrelated products. We are situated in Zhonglou District, Changzhou City, Jiangsu Province, China. Changzhou General close to the Beijing-Shanghai Railway, Shanghai-Nanjing Express Way and Changzhou Airport. It is about an hour to Shanghai and Nanjing by high speed train.
Our main factory possesses the advanced technology of hydrogenation and cryogenic temperature reaction(-78)in the world, the highest temperature is 300and the highest pressure is 12.5MPa. With full-equipped autoclaves from 100ml to 6, 000 L, our company produces high quality intermediates. In addition, our intermediates for pharmaceuticals confrom to BP2007, USP32, EP7, Benzocaine have already owned CEP, GMP in Europe and the Chinese Drug Manufacturing License.
We have strictly control on quality and services, approved the ISO9001: 2008 Quality System Certification and ISO14001: 2004 Environmental Management System. More than 80 percent of our products has been exporting to the overseas market such as U. S. A., Europe, Southeast Asia, etc. For many years. All our clients speak highly of our high quality products and professional services.
Changzhou General is your reliable and committed partner. Welcome guests from home and abroad to cooperate with us in economy and technology. We are ready offer the best quality and services to all of you.
