USD $6.00-9.00 / Gram
USD $6.00-9.00 / Gram
USD $14.60-15.00 / Metric Ton
USD $6.00-9.00 / Gram
USD $20.00-35.00 / Metric Ton
USD $4.50-5.00 / Liter
USD $100.00-150.00 / Kilogram
USD $4.50-5.00 / Liter
USD $6.00-9.00 / Gram
shandong flying fine chemical industry, ltd is a professional manufacturer, the company aims, positioning technology safe and environment-friendly high-end chemical products, with year 2 million tons of dimethyl carbonate,1.6 million tons of 1.2- propylene glycol,3 million tons of propylene carbonate,1 million tons of mixed carbonate esters,8 thousands of tons of highly pure carbonic acid ethyl ester, and8 thousand tons of high-purity diphenyl carbonate by methyl ester, and1 million tons of fine chemicals, such as succinic acid production capacity is domestic fine chemical enterprises; are excellent credit enterprise, the shandong province famous trademark enterprise in china.
properties and uses
or also known as of maleic anhydride maleic anhydride maleic anhydride, often referred to as of maleic anhydride. colorless crystal, has a strong pungent odor. room temperature white granular, acicular, flake, bar, block, or block-shaped, has a strong irritant. the relative density of 1.48, melting point of 52.8c, boiling point202.2℃at low temperatures (60-80℃) can sublime, soluble in alcohol, ether and acetone, maleic acid and water. fuel mixed with air, steam and dust may form explosive mixtures. mainly by benzene or carbon in four fractions are butane and butene oxide produced is the production of unsaturated polyester and its raw material for organic synthesis.
manufacture of polyester resins, alkyd resins, pesticides, fumaric acid, paper processing agents. maleic anhydride is an important intermediate in organic chemical, is used to make plasticizers in plastics industry; paper processing agent in paper industry; unsaturated polyester resin in the resin industry; alkyd paint in the paint industry; synthesis of malathion pesticide production; production of sulfa drugs in the pharmaceutical industry and so on. in recent years, with its main raw materials of succinic acid, tartaric acid industry expanded rapidly, its engineering and construction, food flavoring agents, biological, such as split applications in the field of expanding.
implementation of the standards: gb3676-92 industry standard maleate
name |
classy |
first grade |
qualified product |
content%≥ |
99.5 |
99.0 |
98.5 |
color number ≤ |
25 |
50 |
100 |
crystallization point℃ ≥ |
52.4 |
52.0 |
51.5 |
ash content % ≤ |
0.005 |
0.005 |
- |
iron content ( fe dollars)ppm |
5 |
- |
- |
packaging and storage
industrial packaging of maleic anhydride using polypropylene woven bags , lined with polythene plastic bags . maleic anhydride should be stored in dry and ventilative warehouse , fire-resistant, moisture-proof, protected against rain, sun , storage period of three months to one year . storage in transit do not mix with acid, alkali, avoid contact with oxidizing, corrosive substances , so as to avoid product deterioration , transportation handle with care when , to avoid bag breakage . as stipulated in the general chemical storage and transportation.