ऐंथ्रासाइट  हिन्दी देवनागरी में पढ़ें।

ainthraasait koyale ki sabase achchhi kism hai. isaka rng kala hota hai, par hath men lene par use kala nahin karata. isaki chamak adhatvik hoti hai. tootane par isake navin prishthon men se ek avatal aur doosara uttal dikhaee padata hai; ise hi shnkhabh (kanakaauyadal) toot kahate hain. isamen bahudha vibhng samatal vidyaman rahate hain. isaki kathorata 0.5 se 2.5 tak tatha apekshik ghanatv 1.36 se 1.84 tak hota hai.

rasayanik gun –koyale ki any kismon ki apeksha ainthraasait men karban ki matra adhik tatha vashpashil padartho ki matra nagany hoti hai. pensilaveniya-ainthraasait men 85 se 93 pratishat, sauth vels ainthraasait men 88 se 95 pratishat, saiksani ainthraasait men 81 pratishat tatha dakshini roos se prapt ainthraasait men 94 pratishat tak karban prapt hota hai. isamen karban ke atirikt haidrojan, aksijan, naitrojan adi bhi vidyaman rahate hain. ainthraasait ki ausat rasayanik snrachana nimnalikhit hai :

karban 93.50 pratishat

haidrojan 2.81

aksijan 2.72

naitrojan 0.97

ainthraasait kathinata se jalata hai, kintu ek bar sulagane par samapti tak jalata rahata hai. lapat chhoti aur nili hone par bhi isaki ushmashakti atyadhik hoti hai. karban ki matra ke sath ushmashakti bhi badhati jati hai. ushmashakti ko kalari prati gram ya british ushmamatrak prati paund men likha jata hai. ainthraasait ki ushmashakti 14,000 se 15,000 british ushmamatrak prati paund hoti hai. (british ushmamatrak ka tatpary tap ki us matra se hai jo 1 paund pani ka tap 1roo faranahait badha de.) ainthraasait ki eedhan nishpatti 12 se adhik hoti hai.

upayog –poorvokt gunon ke karan ainthraasait dhatviki udyogon men vishesh roop se prayukt hota hai. aihthraasait stav kamara garam karane ke lie vyavahrit hote hain. nidhoom hone ke karan bahut se gharon men isaka upayog eedhan ke roop men bhi hota hai; par bituminayukti koyale ki apeksha adhik mahnga hone ke karan isaka ghareloo prayog kam hota ja raha hai.

utpatti –vanaspatiyon ke roopantaran ki prakriya men kramanusar pit, lignait, bituminayukt koyala aur ainthraasait banata hai. bituminayukt koyala tap aur dab ke prabhav se ainthraasait ban jata hai. bahudha bahar se ghus anevali agney shilaon ke tap ke prabhav se hi bituminayukt koyala aihthraasaia men parivartit ho jata hai. kuchh ainthraasait nikshep mool vanaspatiyon men dabane se poorv jivanuon dvara utpann parivartan ke phalasvaroop hi bane hain.

ainthraasait utpadan men eshiya snsar ka agrani hai. eshiya ka lagabhag do tihaee ainthraasait chin ke shansi pradesh men hai. hunan (chin) men ainthraasait star sadharanat: 15 phut mote hain, inamen se ek star to 50 phut mota hai. roos ka donetz pradesh ainthraasait ke lie vikhyat hai. snyukt rashtr (amarika) ka snpoorn ainthraasait apailaichiyan kshetr se prapt hota hai. pensilaveniya aur alaska ke ainthraasait nikshep isi kshetr ke antargat ate hain. pensilaveniya ke uttari-poorvi bhag men lagabhag 480 varg mil kshetraphal men ainthraasait nikala jata hai.

gret briten vishv ke char bade koyala utpadakon men se ek hai. vahan ka samast koyala uchch shreni ka hai. vels ka ainthraasait apane gunon ke karan vishvavikhyat hai tatha videshon men isaki mang adhik hai. yahan ke koyala staron ki motaee 120 phut tak hai. bharatavarsh men upalabdh adhikatar koyala uchchatam shreni ka nahin hai, parntu kashmir aur darjiling ka koyala ainthraasait ke saman hi hai.[1]



panne ki pragati avastha
adhar
prarambhik
madhyamik
poornata
shodh

tika tippani aur sndarbh

  1. hindi vishvakosh, khand 2 |prakashak: nagari pracharini sabha, varanasi |snkalan: bharat diskavari pustakalay |prishth snkhya: 270 |

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