ऐल्यूमिना
ailyoomina ailyoominiyam ka aksaid hai; prakritik avastha mean yah korandam, maniky, nilam, billaur, panna tatha doosare ratnoan ke roop mean paya jata hai. ye ratn manibhiy aur paradarshak hote haian. any dhatuoan ke aksaidoan ki upasthati ke karan hi ye ratn rangin ho jate haian. ratnoan mean ye aksaid kaliliy avastha mean alanbit rahate haian. maniky mean tho di matra mean kromiyam ka aksaid, nilam mean kromiyam ya lauh ka aksaid aur billaur mean maianganiz rahata hai. brihat matra mean yah khanij bauksait ke roop mean paya jata hai, jo ailyoominiyam ka jaliy aksaid Al2O3.H2Ohai.
prayogashala mean ya audyogik roop mean nirman karane par ailyoomina ek shvet aghulaniy choorn ke roop mean milata hai. yah kritrim ratn, ailandam ghariya (kroosibl) aur gharshak padarth banane ke kam ata hai.[1]
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tika tippani aur sandarbh
- ↑ hindi vishvakosh, khand 2 |prakashak: nagari pracharini sabha, varanasi |sankalan: bharat diskavari pustakalay |prishth sankhya: 284 |