Plz explain the blue lake test for Aluminum.What gives the blue colour???.Something to do with litmus adsorption.plz help.Clear answer will be judged BEST.
I would advise these things: A Jack to lift up your car in case you need to use the Spare WheelA Box of Tools A Complete Set of Spare Bulbs Brake Fluid Washer Fluid Jump/Boost Cables Anti Freeze for both the Radiator and wind screenA High Visibility Vest A reflective red Triangle Spare Windscreen Wipers A Camera (in case you are in an accident to prove damage for insurance claims) A Mobile Telephone Some Food and Water
You should always have a blanket and a candle in some sort of holder in case you get stuck in the cold, you can heat your car with the candle and keep warm under the blanketAnd a few canned foods aren't a bad idea eitherThis is what we keep in ours.
maybe consider a blanket in case- (if it get cold or your power window gives out, very helpful to have in a car!!!) possibly a change of clothes (up to you) a extra pint of oil w/ a funnel a jack w/ an extra wheel tissues and a first aid kit is a must!!!
proper maintenance is all you need to insure your car will not give you problems down the roadHowever, it seems like you have all the tools for a flat but what about the tyre wrench? Be sure to always have tools at handYou may also need the following (for extra safety) - tug rope, incase you ever get stuck in muckor ur car has over heated and there's a fuel station nearbya good samaritan can always do more with a tug rope- Flash lights come in useful when you have a problem in dark areas or during night journeys- if you have a common problem of oil leakage, and still is under the budget for going for repairsbe sure to bring along extra engine oiland the 1 item you'll need is a cellphone with full batteriesNEVER leave home without charging it.
The presence of aluminium ions in a salt is confirmed by performing a test called blue lake test The test is carried out by taking a solution of aluminium salt in a test tube add few drops of litmus solution then acidify with dilHCl then add NH4OH(ammonium hydroxide) and allow to stand The result is a blue pptin colourless solutionA Lake pigment is a pigment manufactured by precipitating a dye with an inert binder, usually a metallic saltThe metallic salt or binder used must be very inert and insoluble in the solutionAluminium hydroxide fills this roleWhat hppens during the test is to form aluminium hydroxide with the NH4OHThis lakes with the litmus dye, which is blue in the alkaline solution, and the lake precipitates as it is insoluble in waterIf the litmus was not added, the Al(OH)3 would be difficult to see - the litmus acts as a colour indicator that makes the Al(OH)3 easy to seeWhen you do this test make sure that you definitel add sufficient NH4OH to make the solution alkaline, blue to litmus.
