
maltein

maltins damar key "aine"-alken (penten yaa hepten)-ghulansheel aanvik ghatak hain, joe petroleum refiners dwara kachche tail seey gasoline aur mitty key tail jaise anya upayogi vyutpannon koo hataane key baad shesh avashesh hain. damar yaugik damar key anya praathamik ghatak hain. 
rachana.
chipchipa taral padaarth key roop mein, maltins mein bhaari, gahare rung key damar regin, pahale acidefin, dusare acidefin aur saturates hotey hain, joe halke rung key telon key saath sanyukt hotey hain. regin damar mein chipakane vaale guna pradaan karate hain; tail maltin regin aur damar yaugikon donon key liye vaahak madhyam hain. damar kii tulanaa mein maltinon koo unake cumm aanvik vajan aur unaki ghulansheelata kii visheshta haye. 
acid abhikarmak kii upasthiti mein adhishoshan chromatography kaa upayog karke, maltinon koo chaar anshon mein vibhajit kiya jaa sakata haih
vishleshan.
lambe samay seey yeh sandeh kiya jaa rhaa thaa kii vishisht damar ghatakon kii rasayanik pratikriyaon key parinamswarup damar footpath mein girawat aaee haye. 1959 mein, fritz rostler ney dekhaah "aam taur parr yeh maanaa jaataa haye kii umr badhane kii prakriya key dauran bhang aur bhautik gunon mein anya parivartanon key kaaran damar footpath kii viphalata sabhi yaa kuchh damar ghatakon kii rasayanik pratikriyaon key kaaran hoti haye."
yeh rostler thaa jisane umr badhane kii prakriya mein yogdan karane vaale damar ghatakon aur rasayanik prakriyaon kii pehchaan karane key liye aavashyak shodh kiya. unaki karyapranali ghulansheel ghatakon koo alag karane key liye pahale sulfuric acid kaa upayog karke damar ghatakon koo alag karna thaa, phir aghulansheel ghatakon koo alag karane key liye ack aine-penten vilaayak kaa upayog karna thaa.
rubber udyog mein rostler key kaam ney aeye. aiss. tii. aim. pareekshan dee-2006-70 kaa vikas kiya, joe prakaash ansh maltins, acidefin aur saturates key beach sambandhon kii sateek pehchaan kartaa haye. haalaanki iss pareekshan koo 1970 key baad seey adyatan naheen kiya gayaa haye, yeh damar footpath mein vaanchhaniya maltin samagri vitaran koo paribhaashit karane key liye ack sateek maanak banaa huaa haye.
"rostler vishleshan urf aeye. aiss. tii. aim. pareekshan dee-2006-70"
jahan pee. see. dhruviya yaugikon kaa pratinidhitva kartaa haye, aeye1 pahale acidafin kaa pratinidhitva kartaa haye, aeye2 dusare acidafin kaa pratinidhitva kartaa haye, aur aiss santript hydrocarbon kaa pratinidhitva kartaa haih
 minn. adhikatam.
maltein vitaran anupaat dee-2006-70 0.3 0.6
rostler ney nirdhaarit kiya kii damar mein cumm aanvik-vajan vaale maltin ghatakon kaa nuksan kaafee hudd taka umr badhane vaale footpath mein dikhaai dene vaali daraar aur kathorta key liye jimmedaar haye. iss khoj ney vaanijyik kayakalp karane vaalon key vikas koo janm diyaa joe damar key maltin anshon koo damar key footpath mein pravesh karane mein saksham vaahak key saath jodate hain, taaki damar ghatakon key uchit santulan koo bahaal kiya jaa sakey.
bhoo-rasayan.
maltinon kii bhoo-rasayanik sanrachana kachche tail key srot key anusaar bhinn hoti haye, jisamen koee bhee maltein ansh vibhinn sandrata key aadhar tatvon kii ack vistrit vividhata kaa pratinidhitva kartaa haye, jisamen udaaharan key liye, cobalt, chromium, tamba, loha, molybdenum, manganese, nickle, strontium, vanadium yaa jastaa shamil hoe sakate hain.