Ethers - Import export

100% unfilled PEEK natural PEEK(Polyetheretherketone)is a kind of heat-resistant, high performance thermoplastic special engineering plastics. It has good mechanical properties and chemical resistance, abrasion resistance, and hydrolysis resistance properties etc.; it has a light proportion and self-lubricating properties.Mechanical and automotive engineering, nuclear and vacuum technology, transport and conveyor technology, textile, packaging and paper processing machinery, electronic and precision engineering, food processing. Key Features Temperature: -40°C up to +260°C. Creep resistant and excellent resistance to high energy radiation. Hydrolysis resistant, even against super-heated steam. Extremely strong and wear resistant plastic. Noise dampening. Highly machinable. MACHINING PEEK

Product Identification Chemical name: 4'-Nitrobenzo-15-crown-5 Synonyms: 4-Nitrobenzo-15-crown-5, 4'-Nitrobenzo-15-crown-5 ether, 4-Nitrobenzo-15-crown-5 ether, 2,3-(4-Nitrobenzo)-1,4,7,10,13-pentaoxacyclopentadec-2-ene CAS No.: 60835-69-0 Molecular formula: C14H19NO7 Molecular weight: 313.30 Melting point: 93-97 ºC Specification Appearance: Pale yellow solid Purity: 98.00%min by HPLC Moisture: 0.50%max by KF Package Regular Packing: N.W 25kg/fiber drum Sample Packing: 0.1kg-1kg foil bag or under request Transportation Information Classification: Non dangerous goods HS Code: 2932999090 Application Chloroform–water extraction systems have been studied using crown-ethers as extracting agents, namely: benzo-15-crown-5 (B15C5), 2,3-naphtho-15-crown-5 (N15C5), 4′-nitro-benzo-15-crown-5 (NO2B15C5), 4′-tert-butyl-benzo-15-crown-5 (TBB15C5), and 4′-acetyl-benzo-15-crown-5 (AcB15C5).

Manufacturer of cosmetic boxes & contract packaging. Round, oval & square sizes available. String bead for extra seal on both one- & two-piece round & oval styles. Paper, clear cellophane or foil drum tops. Combination drums available. Custom colors. Leaf stamping & printing available on drum tops & drum bands. Tooling on hand for many popular sizes. Custom sizes & styles available.

Product Identification Chemical name: 4-tert-Butylbenzo-15-crown-5 Synonyms: 4-tert-Butylbenzo-15-crown-5-ether CAS No.: 15196-73-3 Molecular formula: C18H28O5 Molecular weight: 324.41 Melting point: 92.0-95.0 ℃ Specification Appearance: Off-white to pale yellow powder Purity: 98.00%min by GC/HPLC Moisture: 0.50%max Package Regular Packing: N.W 10kg/fiber drum Sample Packing: 0.1kg-0.5kg foil bag Transportation Information Classification: Non-dangerous goods HS Code: 2932999090 Status & Application Status: lab scale Application: 1) Used as an effective dissolution of inorganic in solvents; 2) Double metal cyanide (DMC) catalysts with crown ethers.