Dicyandiamide CAS 461-58-5
Dicyandiamide, yofupikitsidwa kuti DICY kapena DACD, ndi dimer ya cyanamide ndi cyano yochokera ku guanidine. Ndi ufa wa crystalline woyera. Imasungunuka m'madzi, mowa, ethylene glycol ndi dimethylformamide, ndipo imakhala yosasungunuka mu ether ndi benzene. Sichikhoza kuyaka. Imakhala yokhazikika ikauma. Dicyandiamide wochiritsa ndi wa mtundu wakale kwambiri wamankhwala ochiritsira omwe amagwiritsidwa ntchito kwambiri. Ndi olimba kutentha firiji ndi osasungunuka mu epoxy utomoni. Amamwazika mu epoxy resin mu mawonekedwe a microparticles ndiyeno amatenthedwa kuti achite. Ikatenthedwa mpaka pafupi ndi malo osungunuka, imayamba kusungunuka ndikuchitapo kanthu mwachangu kuti ichire.
| Kanthu | Zotsatira |
| Maonekedwe | White Crystal kapena Powder |
| Chidetso Precipitating Test | Zovomerezeka |
| Kuyera% ≥ | 99.5 |
| Chinyezi % ≤ | 0.3 |
| Za Phulusa %≤ | 0.05 |
| Calcium % | 0.02 |
| Melamine ppm | 500 |
(1) Dicyandiamide amagwiritsidwa ntchito ngati zinthu zopangira mchere wa guanidine ndi cyanamide. Mchere wosiyanasiyana wa guanidine ukhoza kupangidwa pochita dicandiamide ndi asidi. Benzene cyanamide yomwe imapezeka chifukwa cha zochita za dicyandiamide ndi benzonitrile ndi yapakatikati ya zokutira, laminates, ndi ufa woumba.
(2) Dicyandiamide amagwiritsidwa ntchito ngati mankhwala opangira utoto. Dicandiamide utomoni wopezedwa ndi zochita za dicyandiamide ndi formaldehyde angagwiritsidwe ntchito ngati kukonza utoto.
(3) Manyowa a Dicyandiamide ndi dicyandiamide pawiri feteleza amatha kuwongolera zochita za mabakiteriya opatsa nitrifying, kuwongolera kusintha kwa feteleza wa nayitrogeni m’nthaka, kuchepetsa kutayika kwa nayitrogeni, ndi kuwongolera mphamvu ya kugwiritsira ntchito fetereza.
(4) Dicyandiamide imagwiritsidwa ntchito ngati mankhwala abwino apakatikati. Mankhwala, amagwiritsidwa ntchito pokonzekera guanidine nitrate, mankhwala a sulfonamide, etc.; amagwiritsidwanso ntchito pokonzekera thiourea, nitrocellulose stabilizer, mphira vulcanization accelerator, zitsulo pamwamba hardener, yokumba chikopa filler, zomatira, etc. The wapakatikati mankhwala 5-azacytosine angapezeke pochita dicyandiamide ndi formic acid.
(5) Dicyandiamide pofuna kudziwa cobalt, faifi tambala, mkuwa ndi palladium, organic synthesis, nitrocellulose stabilizer, hardener, detergent, vulcanization accelerator, utomoni kaphatikizidwe.
25kg / thumba, kapena malinga ndi zomwe kasitomala akufuna
Dicyandiamide CAS 461-58-5
Dicyandiamide CAS 461-58-5
