化工新询盘，巴基斯坦的 |
| 03-23 23:06:34 来源： 作者： |
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化工新询盘，巴基斯坦的 有一来信如下，帮忙分析一下 ATTN : Manager / Intl Sales & Marketing SUBJECT : PROPOSAL FOR CHEMICALS FOR MANUFACTURING OF FOAM A. POLYETHER POLYOL, Qty = 1000 Ton Per Year Lupranol 2025 SG Chemical Nature: Lupranol 2025 SG is a propylene oxide/ethylene oxide based trifunction polyether polyol, which contains predominantly hydroxyl groups. Applications: Lupranol 2025 SG is used for the manufacture of flexible slab stock polyurethane foams, both continous and discontinuous production. Typical Properties: Appearance: colourless, Viscous liquid Colour 30 Hazen ASTM D1209 Hydroxyl value 56 mg KOH/g ASTM D4274C Viscosity @ 20C 600 mPa.s ASTM D445 @ 10C 1400 mPa.s ASTM D445 @ 5C 2000 mPa.s ASTM D445 Density at 20C 1.017 kg/L ASTM D4052 Water content 0.05 % m/m ASTM D4672 Total acidity 0.03 mg KOH/g ASTM D4662 Flash point 200 C ASTM D93 (NOTE: C mean centigrade) B. TOLUENE DIISOCYANATE 80% - 20%, QTY = 500 Ton Per Year Lupranate T80 : Luparante T80 touene diisocyanate (TDI) is an 80% - 20% mixture of the 2,4 and 2,6 isomers of toluene diisocyanate, this product is ued in the preparation of polyurethane foams, prepolymers and elastomers. Assay, % by weight , min 99.5 8207, Total acidity as HCI, % 0.002-0.005 8202, Hydrolyzable chloride, wt. % 0.002-0.005 8203, Isomer ratio – 2,4, wt,% 80+- 1 8207 : 2,6,wt% 20+- 8207, Color, APHA maximum 15 8206, Molecular weight 174.2, specific gravity 25/25 C 1.22, Boiling point 10 mm Hg, F 248, Density, @ 20C, IBS/gal 10.2, Flash point, F (COC) 270, Vapor pressure @ 20C, mm Hg 0.01, Freezing point, F 53.6 |
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