Litmus gwajin ne a chemically-bi tsantsa litmus takarda. Ana amfani domin sanin mataki na acidity ko alkalinity na muhalli. Kafin litmus takarda impregnated karfe, an yi amfani da shi kadai a matsayin nuna alama da kuma sinadaran reagent. Da farko amfani da matsayin nuna alama litmus Spanish alchemist Arnaldo de Vilanova kamar 1300g. Wannan abu da na halitta asali, shi ne samu daga lichens.
A litmus gwajin - shi ne wani acid-tushe nuna alama, wanda yake a cikin acidic matsakaici yana ja, da kuma alkaline - blue. Dangane da launi tsanani, amfani da musamman sikelin, sanin da PH. A PH nuna alama ko PH ne a gwada yawa awo da rabo a ruwa na H + kuma OH- cewa an kafa a lokacin da ruwan dissociation. A dakin da zazzabi a tsaka tsaki bayani, PH 7, a cikin acidic PH <7, alkaline PH> 7.
Litmus takarda amfani a yi fairly sauki hanyar: ka kai shi a daya karshen da kuma tsoma a cikin wani ruwa matsakaici sauran. Ba lallai ba ne su ƙetare takarda zurfi a cikin ruwa. A sakamakon bayyana nan da nan: Laraba saukar da baki ko canje-canje launi ko ba. Sa'an nan, wannan takarda ne idan aka kwatanta da misali dabi'u, wanda aka ajiye a matsayin sikelin a kan bututu ko a kan marufi a cikinsa akwai haske. Litmus gwajin da aka dauke su a duniya nuna alama, kamar yadda yin amfani da shi zai iya sanin ko digiri da acidity da alkalinity na matsakaici.
Wannan nuna alama za a iya sanya da kuma a gida, bayan da ya ciyar da wani m lokaci da kuma kudi. Za ka bukatar wani ja, blue ko shunayya kabeji, tace ko bayyana farin takarda. Kabeji bukatar grate, tafasa don 30-35 minti, sa'an nan lambatu da kuma matsi a hankali. Kabeji da kanta zai daina bukatar, da kuma a cikin sakamakon broth a saka tube yanke daga takarda. Bayan da takarda ya yi sharkaf, cire shi da kuma bushe. Ci gaba da wannan takarda bukatar bushe kwantena, daga hasken rana. By ta amfani da irin wannan kai-sanya nuna alama kamata la'akari da cewa shi ya ba da wani dan kadan ya fi girma ji kuskure fiye da ma'aikata.
A litmus gwajin na ta sauƙi na yin amfani da versatility a da definition PH an yadu amfani ba kawai a lokacin da sinadaran gwaje-gwajen a makarantu da kuma asibiti dakunan gwaje-gwaje, amma kuma a cikin gida. Saboda haka, duk wani mutum da sauƙi, ta amfani litmus takarda, PH darajar iya gane wani nazarin halittu ruwa, mafita, garwayayye - yau, fitsari, nono da madara, da ruwa, soaps, da dai sauransu Sigogi PH na jiki ruwaye wajibi ne a kansa sarrafa a cikin wasu cututtuka. Kamar yadda litmus gwajin ne yadu amfani a cikin gida growers domin sanin mataki na acidity da alkalinity na kasar gona. Yana yiwuwa a yi amfani da shi domin sanin PH na kayan shafawa, musamman ma wadanda suke amfani ga fata kula, tun Fi dacewa ya kamata su zama tsaka tsaki.