STS - SILVER THIOSULFATE Breeder Dry STS Kit

Designed By Growers for Growers

Make Seeds Like A Pro! With this Canadian made Reversal Kit, turn your favorite plant into a seed maker so you can keep you special lady forever.

This kit is designed for those who will be consistently using STS for ongoing breeding projects.

The Kit Contains:

4 grams of Sodium Thiosulfate Pentahydrate

.5 grams of Silver Nitrate

2 grams Yucca Surfactant

This will produce two bottles of Stock solution that are 500ml.  These Stock Solutions are a concentrated mix and can be mixed at a 1:9 parts ratio to create 10 litres of actual spray.

Once mixed the stock solutions are good in an amber bottle or light proof bottle in the fridge for up to 6 months.  Once the Spray is mixed it is also stored in the fridge and viable for up to 3 months, although most prefer to use in the first month.

Reccomended Supplies

Distilled or Reverse Osmosis Water

2 32oz Brown Glass Bottles

32oz Brown Glass Bottle w/Black Sprayer Top

60 cc/ml Syringe

Surfactant (Yucca-Extract)

A Cool Dark Place for Storage (Fridge)

Nitrile Gloves

500ml/2 Cup Glass Mixing Container

Small wire whisk

Safety Goggles

Breeder STS Dry Kit Instructions

Instructions for Breeder Dry STS Kit

Reccomended Supplies

Distilled or Reverse Osmosis Water

2 32oz Brown Glass Bottles

32oz Brown Glass Bottle w/Black Sprayer Top

60 cc/ml Syringe

Surfactant (Yucca-Extract)

A Cool Dark Place for Storage (Fridge)

Nitrile Gloves

500ml/2 Cup Glass Mixing Container

Small wire whisk

Safety Goggles

Basic Safety Recommendations

The following steps require careful measuring, along with basic chemical safety. It is strongly recommended you work on a flat surface with a plastic sheet or several layers of newspaper to protect it. Silver nitrate does stain brown to black, so gloves and safety goggles are recommended.

Sodium thiosulfate has a very low toxicity, make sure you still wash up any spills well to remove all concern. Both of these solutions can be safely rinsed down the drain, when followed by a large amount of water.

Measuring and Mixing Stock Solution "A"

Fill your 500ml measuring cup with 500ml of distilled water

Mix the silver nitrate crystals into the 500ml of distilled water

Pour the silver nitrate solution into a brown glass bottle and seal tightly

Label the bottle "A" Silver Nitrate

Thoroughly clean the 500ml container and rinse with distilled water

Measuring and Mixing Stock Solution "B"

Fill the 500ml container with 500ml of distilled water

Mix the sodium thiosulfate crystals with the 500ml of distilled water

Pour the sodium thiosulfate solution into a brown glass bottle and seal it tightly

Label the bottle "B" Sodium Thiosulfate

Thoroughly clean the 500ml container and rinse with distilled water

Keep Both "A" and "B" Solutions Cool and Dark!

Mixing and Diluting STS

The next step is to mix the two stock solutions together properly, creating the actual Silver Thiosulfate Solution (STS).

Before using the STS, it must be diluted to a weak solution for spraying!

Measure 50ml of stock solution "B" with the 60cc syringe and gently squirt it in the 500ml glass measure

Thoroughly rinse the syringe with distilled water, or change to a new syringe

Measure 50ml of stock solution "A" with the 60cc syringe

While whisking solution "B" in the glass measure, slowly squirt solution "A" into the glass measure in less than 30 seconds

Pour the mixed solution into the 32oz brown glass bottle with black sprayer top

Add 900ml of distilled water to fill the sprayer the rest of the way, leaving room for a little bit of surfactant

Add yucca extract in small amounts and shake well

Test spray on a leaf to if solution still beads up and rolls off

Add additional yucca extract and shake well, until the solution spreads across the leaf instead of beading up

Thoroughly rinse all tools using more rinse water than usual

You now have a sprayer bottle with a 1:9 dilution of STS and water. You want to do your best to protect it from light and heat.

The Breeder Kit is large enough to reverse many plants and is the best option if you are doing more than 3 small sized plants.

Expiration

Old Spray (3+ Months)

Reasonable Expectations

When the sprayer bottle is properly protected from light, and kept in a cool place, the mixed STS can remain viable for months.

New Batch Every Business Day

We at silverthiosulfate.ca make a new batch every day we ship.  We NEVER use old materials, and we always print a mixed on date on every bottle.

Simple Visual Inspection

You can check to see if the solution is still viable by pouring a bit out in a clear glass. The solution should be crystal clear.  

About using our Surfactant (Yucca)

Included with all of our kits we include RAW's 'YUCCA flow' surfactant.  Here are their instructions for use.  We have found the simple method of adding it just before the first application (It has simple sugars and will cause the spray to go bad after some time).  This can be minimized by storing just above freezing tempuratures.

 ADD MINIMAL AMOUNTS, THINK MILLIGRAMS for ready to spray bottles.  To test it spray your spray on a plant or surface and if it wets the surface without beading up then you've got enough in the mix.   Less is better than too much.  We suppply MUCH more than you'll need.

RAW Yucca is made from 100% natural yucca extract from the plant Yucca Schidigera. It can be used as wetting agent for nutrient solutions and foliar sprays and is great for flushing excess salts from the root Zone. When used on soils, it helps water and nutrients penetrate deeper and more evenly into the root zone. We recommend adding a pinch (1/16 tsp per 5 gallons) RAW Yucca to all foliar, nutrient and flush solutions. Works in conjunction with all nutrient and feeding programs.

Silver Nitrate MSDS - Silver Nitrate - Tiny Bags of Crystals - Black or Smokey colored bags in our kits.

Sodium Thiosulfate MSDS - Sodium Thiosulfate - Larger Bags of Crystals.  Comes in clear bag in all kits.