Witnessed by: Ayurveda · Unani
Soda ash (Natron), of the carbonate mineral (alkali) family. A white, efflorescent to crystalline saline crust, deliquescent in damp air; native range: efflorescences and crusts of soda lakes, playas and alkaline soils; leached from the ash of soda-plants. Globally recognized as svarjika kshara, sarjika kshara in Sanskrit, sajji, qali in Arabic/Urdu, and soda ash, washing soda, natron in English. The part used is the refined alkaline salt. White to greyish, powdery or glassy, soapy-alkaline and biting on the tongue, dissolving readily in water.
In this cross-tradition database, we analyze how this substance operates across world medicine systems — tracking its traditional tastes, temperatures, tissue affinities, post-digestive effects, and planetary correspondences across Ayurveda, Unani, and Western herbalism.
SODA ASH
IDENTITY
Name
- Common
- soda ash
- Scientific name
- Natron (hydrated sodium carbonate, Na₂CO₃·10H₂O)
- Family
- carbonate mineral (alkali)
Form
- Part used
- the refined alkaline salt
PROPERTIES
Nature
Taste
how the plant declares itself on the tongue
- Ayurveda
- pungent (katu) · salty (lavana)
- Unani
- acrid · salty
Temperature
- Ayurveda
- heating (ushna)
- Unani
- hot & dry (3rd degree)
PRACTICE
Virtue
Actions
- Ayurveda
- deepana (kindles digestion), pachana (digestive), bhedana (breaks up masses and stool), kaphahara, ashmaribhedana (breaks stone)
- Unani
- muhallil (resolvent and deobstruent), jali (detergent), kasir-e-riyah (carminative), mufattit-e-hasat (lithotriptic)
Cautions
- Contraindications
- hyperacidity with ulceration, bleeding tendencies, pregnancy; hot temperaments
- Toxicity
- a caustic alkali — excess or concentrated use burns the mouth and gut and disturbs the salt balance
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