Has anyone made their own Flame retardant? Does it work?

I had found some recipes online:
Nonpermanent Flame Retardant
2.5 ounces borax
2 cups boiling hot water

Combine the borax and boiling water in a bowl and stir until all the borax is dissolved. Pour into a spray bottle, shake, and spray onto the clothes. Don’t rinse. Let dry before dressing the person in the clothes. Reapply the spray after each wash.

Read more: http://www.care2.com/greenliving/nat...#ixzz12pc8xojd

..............and

Flame Retardant

1 ounce water glass (sodium silicate)
9 ounces water

Mix well. Wash and rinse article completely before applying this solution. Soak fabric in solution. Hang up to dry.

CAUTION: Water glass is caustic to skin and toxic upon ingestion. Wear gloves and handle carefully. As always, keep water glass away from children.
http://www.recipegoldmine.com/houseD...retardant.html