YANTRA [ यन्त्र ] in RASA-SHASTRA:
ANCIENT Chemistry/Alchemy

The instrument by which the substance is controlled is called & #39;Yantra& #39;

For the success in purification of chemicals,or the equipment to save the liquid from Evaporating, burning, etc.used in work,is called Yantra.
1. DOLA YANTRA

• Used for & #39;shodhana& #39;

•This is a purification device in rasayogas

•The material that is going to be detoxified is packed in hanging cloth  (potali), The drava inside the apparatus is kañjika 

• Purification of Goumutra, Mercury....
2. DAMRU YANTRA

• For Sublimation instrument

• For Extraction of Mercury from cinnabar

• For Purification of Navsagar { NH4CL}

• For Rasabandhan

• For Urdhwapatan of [ As2O]
3.STHALI YANTRA

• For Heating of RasaDravya

• For Preperation of & #39;Tamra Bhasm& #39;
4.PALIKA YANTRA

• For Preperation of Various Chemicals

• For Stirring Purpose

• For Parpati Preperation
5. SWEDANI YANTRA

• For Shodhana

• For Parada( Mercury ) Sanskar

• For Extraction of Swarasa

• For Softening Process
6.BALUKA YANTRA
7.PUTA YANTRA
• For bhasma preparing and testing

• For Amritikarana ,Jarana, Satva Patana
8. VIDYADHAR YANTRA

• For Sublimation

• For Parada[ Hg] Sanskar
9.GHATA YANTRA

• Volume = 4 prastha

• Circumference = 4 Angul

Used for containers , preservation of Chemicals
10.URDHWA-PAATANA YANTRA
• For Extraction/Hartal/Sublimation

11. ADHAH PAATANA YANTRA
• For Adhahpatan sanskar and sodhan of Gandhaka
12.TIRYAK PAATAN YANTRA

• For distillation of Various Chemicals especially mercury

• For Extraction of volatile Chemicals/oils
13. BHOODHAR YANTRA(pic - left)

14. PAATAL YANTRA ( pic -right)

• Mainly For Oil Extraction
15. KHALVA

Used for Ptriturating , Mixing of herbs , minerals, chemical

There are many types of khalvas
Tapta, Vartul,Ardhachandrakar....
16.TULA YANTRA

For Quantitative Analysis of Chemicals

17. ULOOKHAL YANTRA

For mixing ,powdering drugs
18.KACHAP YANTRA
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