Dicyandiamide CAS 461-58-5
Dicyandiamide, abbreviated li DICY los yog DACD, yog ib tug dimer ntawm cyanamide thiab cyano derivative ntawm guanidine. Nws yog dawb crystalline hmoov. Nws yog soluble hauv dej, cawv, ethylene glycol thiab dimethylformamide, thiab yuav luag insoluble hauv ether thiab benzene. Nws yog non-flammable. Nws ruaj khov thaum qhuav. Dicyandiamide curing agent belongs rau hom ntxov tshaj plaws ntawm kev kho cua sov latent curing agent siv. Nws yog khoom nyob rau hauv chav tsev kub thiab insoluble nyob rau hauv epoxy resin. Nws yog dispersed nyob rau hauv epoxy resin nyob rau hauv daim ntawv ntawm microparticles thiab ces rhuab rau react. Thaum rhuab mus ze lub melting point, nws pib yaj thiab react sai sai kho.
| Yam khoom | Kev tshwm sim |
| Qhov tshwm sim | Dawb Crystai los yog hmoov |
| Impurity Precipitating Test | Txais tau |
| Purity % ≥ | 99.5 ua |
| Cov dej noo % ≤ | 0.3 |
| Cov ntsiab lus tshauv % ≤ | 0.05 Nws |
| Calcium Cov ntsiab lus % | 0.02 ib |
| Melamine ppm | 500 |
(1) Dicyandiamide yog siv los ua raw khoom rau guanidine ntsev thiab cyanamide. Ntau yam guanidine ntsev tuaj yeem tsim los ntawm reacting dicyandiamide nrog acid. Benzene cyanamide tau los ntawm cov tshuaj tiv thaiv ntawm dicyandiamide thiab benzonitrile yog ib qho nruab nrab rau txheej txheej, laminates, thiab molding hmoov.
(2) Dicyandiamide yog siv los ua cov tshuaj pleev xim. Cov dicyandiamide resin tau los ntawm cov tshuaj tiv thaiv ntawm dicyandiamide thiab formaldehyde tuaj yeem siv los ua cov tshuaj pleev xim.
(3) Dicyandiamide chiv thiab dicyandiamide compound chiv tuaj yeem tswj cov kev ua ntawm cov kab mob nitrifying, tswj kev hloov pauv ntawm nitrogen chiv hauv av, txo cov nitrogen tsis zoo, thiab txhim kho cov txiaj ntsig ntawm kev siv chiv.
(4) Dicyandiamide yog siv los ua tshuaj lom neeg nruab nrab. Hauv tshuaj, nws yog siv los npaj guanidine nitrate, sulfonamide tshuaj, thiab lwm yam; Nws kuj yog siv los npaj thiourea, nitrocellulose stabilizer, roj hmab vulcanization accelerator, steel nto hardener, dag tawv muab tub lim, nplaum, thiab lwm yam. Cov tshuaj intermediate 5-azacytosine tau los ntawm reacting dicyandiamide nrog formic acid.
(5) Dicyandiamide rau kev txiav txim siab ntawm cobalt, npib tsib xee, tooj liab thiab palladium, organic synthesis, nitrocellulose stabilizer, hardener, detergent, vulcanization accelerator, resin synthesis.
25kg / hnab, los yog raws li tus neeg yuav tsum tau muaj
Dicyandiamide CAS 461-58-5
Dicyandiamide CAS 461-58-5
