1,3-dihydroxymethyl-5,5-dimethyl Glycolylurea / DMDMH CAS 6440-58-0
Gabatarwa:
| INCI | CAS# | Kwayoyin halitta | MW |
| 1,3-dihydroxymethyl-5,5-dimethyl Glycolylurea | 6440-58-0 | C7H12N2O4 | 188 |
Hydantoin na DMDM fari ne mai launin crystalline wanda ba shi da wari kuma yana aiki azaman maganin kashe ƙwayoyin cuta da kuma kariya a cikin kayan kwalliya da kayayyakin kula da kai. Samfurin yana da launin rawaya mai haske. Yana narkewa cikin sauƙi a cikin ruwa, barasa, glycol, kuma yana da ƙarfi a cikin yanayin ruwa da ruwan mai. Yana iya kasancewa daidai a cikin -10 ~ 50℃, PH 6.5 ~ 8.5 na tsawon shekara 1.
Bayani dalla-dalla
| Bayyanar | Ruwan farin haske |
| Abubuwan da ke cikin Matter Mai Aiki %≥ | 55 |
| Nauyin nauyi na musamman (d420) | 1.16 |
| Acidity (PH) | -6.5~7.5 |
| Abubuwan da ke cikin formaldehyde % | 17~18 |
Kunshin
An cika shi da kwalaben filastik ko ganga. 10kg/akwati (1kg × kwalaben 10). Kunshin fitarwa shine 25kg ko 250kg/ganga na filastik.
Lokacin inganci
Watanni 12
Ajiya
a ƙarƙashin yanayi mai duhu, bushewa, da kuma rufewa, wuta rigakafi.
Hydantoin na DMDM wani abu ne mai kiyayewa a cikin kayan kwalliya da kayayyakin kula da kai. Yana aiki ta hanyar rage lalacewa da hana lalacewa a cikin kayayyaki kamar shamfu da na'urorin gyaran gashi, da kuma a cikin kayayyakin kula da fata kamar masu laushi da tushe na kayan shafa. Hydantoin na DMDM shi ma wani wakili ne na ƙwayoyin cuta da ake amfani da shi a cikin kayan kwalliya da kayayyakin kula da kai. A matsayinsa na maganin rigakafi, yana iya taimakawa wajen hana haɓakar fungi, yisti da ƙwayoyin cuta masu cutarwa waɗanda za su iya sa mutane su yi rashin lafiya ko kuma su ba su kuraje, misali. Hydantoin na DMDM "mai ba da gudummawa na formaldehyde," wanda ke nufin cewa don yin aiki a matsayin mai kiyayewa da maganin rigakafi, yana fitar da ƙananan matakan formaldehyde a tsawon rayuwar samfurin kulawa na kai ko kayan kwalliya. A cewar Majalisar Kula da Kai, abubuwan kiyayewa kamar DMDM hydantoin waɗanda "a hankali ke sakin ƙananan adadin formaldehyde masu aminci akan lokaci" suna taimakawa wajen hana ƙwayoyin cuta da ƙwayoyin cuta masu cutarwa. Wani kimantawa na aminci da aka buga kwanan nan a cikin Mujallar Toxicology ta Duniya ya sake tabbatar da cewa ana iya amfani da formaldehyde lafiya a cikin kayan kwalliya idan ba a wuce iyakokin aminci da aka kafa ba. Umarnin Kayan Kwalliya na Tarayyar Turai ya kuma amince da DMDM hydantoin a matsayin abin kiyayewa a cikin kayan kwalliya da kayayyakin kulawa na mutum a mafi girman adadin kashi 0.6 cikin ɗari. DMDMH yana narkewa cikin ruwa kyauta. Ana iya ƙara shi zuwa ga maganin gyaran kirim ko abubuwan da ke lalata fata. DMDMH yana da ƙarfi da juriya ga cation, anion da nonionic surface active agent, emulsifier da protein. An tabbatar da cewa yana iya kiyaye ayyukan ƙwayoyin cuta a cikin kewayon PH da zafin jiki na dogon lokaci. Yana iya hana haɓakar ƙwayoyin cuta na Gram-positive, ƙwayoyin cuta na Gram-negative, yis da mildew yadda ya kamata. Ya kamata a yi amfani da shi: 0.1~0.3, zafin jiki: ƙasa da 50℃.
