- New
Sodium thiosulfate is an essential reagent for advanced growers aiming to create feminized cannabis seeds. When combined with silver nitrate or nitrite, it forms silver thiosulfate, the key compound used to reverse the sex of female plants and obtain viable pollen for producing high-quality feminized seeds.
Delivery next day in all stock products
Gifts in all your orders
C/Moianes 24 08014 Barcelona Spain
Sodium thiosulfate is a vital chemical component in the feminization process of cannabis plants. Experienced breeders use it with silver nitrate or nitrite to prepare silver thiosulfate solution, a proven method to induce male pollen from female plants. This guarantees 100% feminized seeds, preserving genetics and ensuring total control over the breeding process.
Enables precise feminized seed production
Helps preserve unique cannabis genetics
High-purity, lab-grade reagent
Compatible with controlled feminization protocols
Perfect for home growers and professional breeders
Format: 500 grams
Purity: reagent grade
Form: crystalline solid, water-soluble
Main use: preparation of silver thiosulfate
Compatible with: silver nitrate or nitrite
Application: technical/lab use (not for consumption)
Storage: cool, dry place away from direct light
Sodium thiosulfate is mixed with silver nitrate or nitrite to create silver thiosulfate solution. This solution is sprayed on selected female plants, inducing the development of male flowers that produce female pollen.
This pollen is then used to pollinate other female plants, resulting in naturally and genetically stable feminized seeds.
Can I use sodium thiosulfate directly on plants?
No. It must first be combined with silver nitrate or nitrite to form silver thiosulfate, the active compound for feminization.
How should it be stored?
Keep tightly sealed in a dry, cool place, away from moisture and sunlight.
How much do I need?
500 grams are enough to prepare multiple silver thiosulfate solutions, ideal for several feminization cycles.
Is it safe to handle?
Yes, as long as standard lab safety procedures are followed—use gloves, protective glasses, and work in a ventilated area.