Welcome to the eFile Express Minnesota Property Tax Refund Calculator! By answering a few brief questions, you can quickly see if you qualify for Minnesota's 2014 (or 2013) property tax refund -- and the amount of the refund if you do qualify.
Such etching is generally performed by immersion in a Nital solution containing nitric acid in a carrier solvent of alcohol with the acid concentration ranging from 1% up to about 10%. The active ingredient in Nital formulations, as the name implies, is nitric acid.
Testing by Sight-Using Simichrome Polish. Simichrome Polish is a non-abrasive cream used to clean metals. You can also use it to test Bakelite for authenticity, and this is the perferred method for many plastics lovers.To test with Simichrome, sparingly apply to a soft cloth and gently rub a small spot on the inside or back of the item being tested.f a piece is laquered, it may test negative with 409. Black Bakelite pieces often fail this test as well. Use the other tests above to confirm authenticity if a piece you suspect to be Bakelite fails with 409.