Astanga Hrudaya
नातितीक्ष्णमृदुः श्लक्ष्णः पिच्छिलः शीघ्रगः सितः। शिखरी सुखनिर्वाप्यो न विष्यन्दी न चातिरुक्॥२४॥
The ten ideal qualities of caustic alkali are – na ati teekshna – it is neither too strong na ati mridu – na ati mṛduḥ – not too mild shlakshna – is smooth picchila – is slimy sheeghra – is quick in spreading sita – is white in color shikhari – remains like a mountain peak at the site of application sukha nirvapya – is easily removable na vishyandi – does not produce too much exudation/moistness na cha atiruk – does not cause too much pain
english translation
nAtitIkSNamRduH zlakSNaH picchilaH zIghragaH sitaH। zikharI sukhanirvApyo na viSyandI na cAtiruk॥24॥
hk transliteration by Sanscript