Universal Chemical Export

San Francisco, California, United States

We offer phthalic anhydride, product details:cas no. 85-44-9other names phthlandion phthalicacidanhydride phthlandionmf c8h4o3einecs no. 201-607-5place of origin u.s.apurity 99.8%appearance white flakes solidapplication coating auxiliary agentsphthalic acid (wt%): 0.10 maxcolor stability at heating: 50 (90 min at 250?)molecular weight: 148.11solubility in benzene: 100maleic anhydride (wt%): 0.05 maxsolidification point: 130.8 minminimum order quantity:10 ton/tonsport:u.s.apackaging details:1.inside plastic film, outside polywoven bag (all comply with customer's requests) 2.size for 1000kg (nw: 25kg/bag * 40bags) l*w*h 51' * 44' * 40' (129cm *112cm * 100cm) 3.20'fcl/16ton with pallet, 20'fcl/20 ton without pallet 40'fcl/24ton with pallet, 40'fcl/32 ton without pallet (need add $15 per ton if with pallet)delivery time: within 7 - 10 days after advance paymentpayment terms: l/c, t/t, western unionsupply ability: 10000 ton/tons per month detailed product descriptionphthalic anhydride 99.8%phthalic anhydride is the organic compound with the formula c8h4o3. This anhydride of phthalic acid, a colourless solid, is an important industrial chemical, especially for the large-scale production of plasticizers for plastics. In 2002, approximately 4.6 billion kilograms were produced applications in industry and organic synthesis phthalic anhydride is a versatile intermediate in organic chemistry, in part because it is bifunctional and cheaply available. It undergoes hydrolysis and alcoholysis. Hydrolysis by hot water forms ortho-phthalic acid. This process is reversible: phthalic anhydride re-forms upon heating the acid above 180 c. hydrolysis of anhydrides is not typically a reversible process. However, phthalic acid is easily dehydrated to form phthalic anhydride due to the creation of a thermodynamically favorable 5-membered ring. organic synthesisphthalic anhydride is a precursor to a variety of reagents useful in organic synthesis. Important derivatives include phthalimide and its many derivatives. Chiral alcohols form half-esters (see above), and these derivatives are often resolvable because they form diastereomeric salts with chiral amines such as brucine. A related ring-opening reaction involves peroxides to give the useful peroxy acid: c6h4(co)2o + h2o2 ? c6h4(co3h)co2h 1.good quanlity and sgs , ciq, bv test2.the manufacture of plasticizers, alkyd resins3.unsaturated polyester resin precursor to dyestuffs phthalic anhydride is widely used in industry for the production of certain dyes. A well-known application of this reactivity is the preparation of the anthroquinone dye quinizarin by reaction with para-chlorophenol followed by hydrolysis of the chloride. item indextop grade first grade qualified productappearance white scaly or crystalline powder white scaly or crystalline powder with slight colorsmolten chroma(chroma no. )= 20 50 100thermostable chroma(chroma no. )= 50 150 -chroma of vitriol(chroma no. )= 60 100 150crystallization pointc= 130.5 130.3 130.0purity(mass fraction)%= 99.50 99.50 99.00free acid(mass fraction)= % 0.20 0.30 0.50ash(mass fraction)%= 0.05 - -

We offer aluminium hydroxide. port:usaminimum order quantity: 10 metric ton/metric tonssupply ability: 3600 metric ton/metric tons per monthpayment terms: l/c, t/t quick detailsclassification: aluminium hydroxide cas no.: 21645-51-2 other names: alumina trihydratemf: al2(oh)3 einecs no.: 244-492-7 grade standard: industrial grade purity: 96%min appearance: white powerapplication: fire retarding, additive of plastic, rubbermodel number: 1000642hs: 28183000packaging detail: 25 kg/50kg plastic woven bag with net linerdelivery detail: within 7 - 10 days after receive your deposit specifications no generation of toxic or corrosive gases; fire retardant and has self-extinguish ability classification aluminium hydroxidecas no. 21645-51-2other names aluminium hydroxide (super-fine)mf al(oh)3einecs no. 244-492-7grade standard industrial gradepurity >=96%appearance white powerapplication as fire retarding, additive of plastic, rubber etc.; etc. brand name yuejiangmodel number super-finecertificate iso9001, ciq payment & shipping terms:minimum order quantity: 1 ton/tons packaging details: 25kg woven bag, 1000kg sackdelivery time: within 15 dayspayment terms: l/c, d/a, d/p, t/tsupply ability: 1000 ton/tons per yearno. item unit index1 al(oh)3 %= 99.62 al2o3 %= 64.53 sio2 % 0.044 fe2o3 % 0.035 na2o % 0.36 whiteness %= 977 loss on ignition % 34.5 0.58 granularity particle % = 2um= 85d50um = 1.0 main features no generation of toxic or corrosive gases; fire retardant and has self-extinguish abilityrange of application as fire retarding additive of plastic, rubber etc.; basic materials in paper making, coatings and toothpaste; carriers of catalysts; also used in water purifier, fluorides, dyers, pharmacy, building materials etc.