Commodity:trimethylacetic anhydride Cas no.:1538-75-6 Molecular formula:c10h18o3 190kg/drum;
products:Succinic Anhydride,2,5-Dioxotetrahydrofuran Executive standard:GB(ISO) ä¸æ??å��称:ä¸�äº?é?¸é?�ï¼?ç�¥ç�?é?¸é?� MOQ:1 Ton CAS NO.:108-30-5 Loading port:XinGang, Tianjin, China MF:C 4H 4O 3 Shelf time:Long-term effective Appearance:White flake (99%) Molecular weight:100.07 Customs code:2932999099 Delivery:7-15 days upon contract confirm EINECS:203-570-0 Validity time:One month Packing: 25kg/kraft bag, 22MT per 20â?? container with pallet. 25 MT without pallet.( according to goods and special requirement of customers) Uses: As food flavoring agent, solvent, intermediate for organic syntheses and fixing agent in GC.
Maleic Anhydride, Payment Terms : T/T, Bank or Wire Transfer Upfront Upon Proforma Invoice Pricing, Total or Minimum order Quantity , Quality and Delivery time get back to us so we can provide all those for you if interested. Regular others also have added advantages, Bulk orders as well. Maleic Anhydride.;
Wde are a supplier of Maleic Anhydride in Metric Tonne Quantities. Our Maleic Anhydride originates and is shipped from China. MOQ: 1MT
We present ourselves as leading manufacturer of isatoic anhydride which is widely used in perfumery chemicals. We can offer the same in bulk quantity as per customer requirement. Product description:- · cas no:- 118-48-9 · appearance :- light brown powder · assay :- 98% min · moisture :- 0.3 % max · melting point :- 236º c min (decomposes) Application:- Base chemicals for the manufacturer of perfumery synthetics, dyes, agrochemicals. Etc.
We are the key Succinic anhydride factory suppliers from China for more than 16 years history since from 2001. We have good quality Succinic anhydride with good price. Now we have good market in worldwide. If you want to find more, please visit http://www.tnjchem.com/succinic-anhydride-price_p3188.html z
1.Cas no: 108-31-6 2.Hs code: 291714 3.Purity:99.5% min 4.Appearance:white briquette/flake 5.Packing:25kgs per plastic woven bag lined with pe bag 6.Application: It used in production of unsaturated polyester resin. It also is used in coating, pharmaceutics, agricultural, surfactant, additive of plastics, etc. It is main material of binary acid with four carbons, 1, 4-butanediol r-butyrolactone, tetrahydrofuran -
Cas:108-31-6; Purity99.5%min; Type:flake and briquette; It is used to produce unsaturated polyester resin, coating, plastic. 25kgs per plastic woven bag lined with pe bag, 22mts/20'fcl(with pallet) or 24mts/20'fcl(without pallet).
P-Toluenesulfonic anhydride CAS NO.: 4124-41-8
Name: cis-1,2,3,6-Tetrahydrophthalic anhydride, Tetrahydrophthalic anhydride, cis-4-Cyclohexene-1,2-dicarboxylic anhydride, THPA. CAS No: 935-79-5 ,85-43-8 Formula:C8H8O3 Formula Weight: 152.16 Properties: Soluble in benzene and acetone, etc. Sensitive to moisture. Specific gravity: 1.20. Application: Coatings, epoxy resin curing agents, polyester resins, adhesives, plasticizers, pesticides, etc. Package: 25 kg plastic woven bags or paper bags,500kg plastic woven bags. Cautions: Store in cool, dry places and keep away from fire and moisture.
Name 1, 2, 4, 5-Benzenetetracarboxylic anhydride (PMDA) Cas 89-32-7 Structure form Physical and chemical properties pmda is white to light yellow powder or block crystal. Its specific gravity is 1.68.It can be sissolved in organic solvents such as acetone and dimethylacetamide. Quality standard item Standard Appearance: White to light yellow powder or block crystal Content: 99.5% Melting point: 284-287 Neutralization equivalent: 54.50.2 Expatiate the larger scale pmda production lines in china with advanced technology and continuous catalytic gas-phase oxidation process.Complete measures of test and analysis guarantee the stable and reliable product quality.Pmda is produced in several grades to meet specific market requirements and is sold worldwide. Applications the main applications of pmda if to produce polyimide resin and bi-oriented polyimide sheets, gloss retaining and curing agent for powder coating, high temperature-resistant electrical insulating enamel, solid lubricant, solidifying agent fo epoxy resin, plasticizer and crosslinking agents for polyester resins.Etc. Packaging & storage double packed in paper fibre drums lined with plastic bage, net weight:25kgs to 200kgs according to customers'requirment.Keep in dry and well ventilated place, protected from moisture.
CAS NO.: 1823-59-2 EINECS: 412-830-4 MF: C16H6O7 MW: 310.22 MP: 225-229 oC Appearance: white crystalline powder Content: 99%.
HPMA is a low molecular weight polymeride, with average molecular weight 400-800. No toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above 330¡æ. HPMA has obvious threshold effect under high temperature (350¡æ) and high pH£¨8.3£©level, suitable to be used in alkaline water system or built with agents. It has good scale inhibition against carbonate and phosphate scales under temperature 300¡æ with effective time as long as 100 hours. Due to its good scale inhibition and high temperature tolerance properties, HPMA is widely used in desalination plant of flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems. In addition, HPMA has good corrosion inhibition effect when used together with zinc salt. HPMA can also used as additives for cement. Appearance : Clear to umber transparent liquid Solid content % : 48.0 min Bromine value mg/g : 80.0 max Average molecular weight : 450 min pH 1 solution : 2.0-3.0 Density 20¡æ g/cm3 : 1.18 min.
Trimellitic anhydride (TMA) is an important organic chemical product mainly used to produce PVC resin plasticizers, polyimide resin, water-soluble alkyd resins, epoxy resin curing agents, dipping agents for low-pressure and pulse power capacitors, cine films, water treatment agents and surfactants. CAS NO.: 552-30-7 HS Code: 2917399090 Molecular formula: C9H4O5 Appearance: white flaky Melting point: 165-168 Solubility: soluble in hot water, acetone, ethyl acetate,cyclohexanone, soluble in absolute ethyl alcohol and react with it. TMA quality indexú¦Enterprise standard Q/321181GSH008-2005 Appearance: white flaky Purity % : í¦99.50 Acid number mg KOH/g: í¦873.00 Anhydride content %: í¦98.00 Melting point : í¦165.0 triethylene glycol(TEG)chroma,Pt-Co: í_35# Fuse chroma Pt-Co: í_120# PA ppm : í_200.
Appearance: Colorless transparent liquid Boiling point: 39.15¿c Melting point: -63.5¿c Density: 1.490g/cm3 Quality index Purity: 99.0% Chloride: 0.005% Sulfate: 0.02% Fluoride: 0.005% 25kg(50kg, 100kg, 250kg)/drum, (plastic-coated metal pail) or customized
Cas 26099-09-2 dequest: p9000 Properties: Hpma(hydrolyzed polymaleic anhydride) is a low molecular weight polymeride, with average molecular weight 400-800. No toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above 330 centigrade. Hpma(hydrolyzed polymaleic anhydride) has obvious threshold effect under high temperature (350 centigrade) and high ph(8.3)level, suitable to be used in alkaline water system or built with agents. It has good scale inhibition against carbonate and phosphate scales under temperature 300 centigrade with effective time as long as 100 hours. Due to its good scale inhibition and high temperature tolerance properties, hpma(hydrolyzed polymaleic anhydride) is widely used in desalination plant of flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems. In addition, hpma(hydrolyzed polymaleic anhydride) has good corrosion inhibition effect when used together with zinc salt. Hpma(hydrolyzed polymaleic anhydride) can also used as additives for cement. Appearance Clear to umber transparent liquid Solid content % 48.0 min Bromine value mg/g 80.0 max Average molecular weight 450 min Ph(1% solution) 2.0-3.0 Density (20 centigrade)g/cm3 1.18 min Usage: Hpma(hydrolyzed polymaleic anhydride) is usually used together with organic phosphonate at dosage of 1-15ppm for circulating cool water system, oilfield fill water, crude oil dewatering and low-pressure boilers. Hpma(hydrolyzed polymaleic anhydride) has good scale inhibition (98%) and scale stripping properties. When used together with zinc salts, it can effectively inhibit carbon steel corrosion. Package and storage: Normally in 250kg net plastic drum, ibc drum can also be used as required.Storage for one year in room shady and dry place. Safety protection: Acidity, avoid contact with eye and skin, once contacted, flush with water.
No toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above 330 centigrade. HPMA has obvious threshold effect under high temperature (350 centigrade) and high pH(8.3)level, suitable to be used in alkaline water system or built with agents. It has good scale inhibition against carbonate and phosphate scales under temperature 300 centigrade with effective time as long as 100 hours. Due to its good scale inhibition and high temperature tolerance properties, HPMA is widely used in desalination plant of flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems. In addition, HPMA has good corrosion inhibition effect when used together with zinc salt. HPMA can also used as additives for cement. Specification: Appearance: Clear to umber transparent liquid Solid content: 48.0% min Bromine value: 80.0 mg/g max Average molecular weight: 450 min pH(1% solution): 2.0-3.0 Usage: HPMA is usually used together with organic phosphonate at dosage of 1-15ppm for circulating cool water system, oilfield fill water, crude oil dewatering and low-pressure boilers. HPMA has good scale inhibition (98%) and scale stripping properties. When used together with zinc salts, it can effectively inhibit carbon steel corrosion. Normally In 250kg net Plastic Drum, IBC drum can also be used as required.Storage for one year in room shady and dry place.
Appearance: Clear to umber transparent liquid Solid content % :48.0 min Bromine value mg/g :80.0 max Average molecular weight :450 min pH(1% solution): 2.0-3.0 Density (20íµ)g/cm3: 1.18 min Normally In 250kg net Plastic Drum, IBC drum can also be used as required
Maleic anhydride (CAS no.: 108-31-6) Descriptions: 1) Chemical name: Maleic anhydride 2) Maleic anhydride is a white needle-like, briquette or flaky crystalline 3) With irritant odour and sour 4) Inflammable and sublimating 5) It can be freely dissolved in water to form Maleic acid 6) Specific density: 1.480 7) Melting point: 52.85fpC 8) Boiling point: 202fpC 9) Formula: C4H2O3 10) Molecular weight: 98.02 11) Usage: mainly used in production of unsaturated polyester resins. It also is used in coating, pharmaceutics, agricultural insecticide, additives of oil products and plastics, surfactant, etc. It is also used production of 1.4 butanediol, etc.
Cas 26099-09-2 dequest p9000 Properties: Hydrolyzed polymaleic anhydride (hpma) is a low molecular weight polymeride, with average molecular weight 400-800. No toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above 330¬. Hpma has obvious threshold effect under high temperature (350¬) and high ph(8.3)level, suitable to be used in alkaline water system or built with agents. It has good scale inhibition against carbonate and phosphate scales under temperature 300¬ with effective time as long as 100 hours. Due to its good scale inhibition and high temperature tolerance properties, hpma is widely used in desalination plant of flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems. In addition, hpma has good corrosion inhibition effect when used together with zinc salt. Hpma can also used as additives for cement. Specification: Items index Appearance clear to umber transparent liquid Solid content % 48.0 min Bromine value mg/g 80.0 max Average molecular weight 450 min Ph(1% solution) 2.0-3.0 Density (20¬)g/cm3 1.18 min Usage: Hydrolyzed polymaleic anhydride (hpma) is usually used together with organic phosphonate at dosage of 1-15ppm for circulating cool water system, oilfield fill water, crude oil dewatering and low-pressure boilers. Hpma has good scale inhibition (98%) and scale stripping properties. When used together with zinc salts, it can effectively inhibit carbon steel corrosion. Package : Normally in 250kg net plastic drum, ibc drum can also be used as required.
