Compro Argento a Vercelli: come riconoscere l’oro falso

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riconoscere oro vero dal falsoIn via Chivasso 13 a Vercelli il nuovissimo Compro Argento della catena Argento Cash ( ArgentoCash è il primo Marchio Italiano nel settore del franchising “compro e vendo argento”) è lieta di offrirvi il servizio di perizia del vostro argento e oro GRATUITAMENTE.

Nelle veste di esperto nel settore dei metalli preziosi il Sig. Gaetano Auletta, proprietario del Punto Argento Cash a Vercelli (0161 214923 – 3667611266) , sarà a vostra disposizione per periziare gratuitamente i vostri oggetti preziosi e offrirvi una consulenza specializzata in maniera da avere un’idea precisa sul  valore dell’argento e sul valore dell’oro e capire se possedete oro vero o falso.

Dopo aver visto con una lente triplet il marchio e il titolo dell’oro, una prova molto pratica che l’esperto  realizza per riconoscere se l’argento e l’oro sono veri o falsi è quella che viene fatta con gli “acidi”.

Come Riconoscere l’oro falso da quello vero.
Per effettuare questa operazione di riconoscimento dell’oro falso occorre venire da noi di Argento Cash a Vercelli, oppure  occorre procurarsi una pietra di paragone e dell’acido nitrico.

Quello che si deve fare successivamente è prendere l’oggetto d’oro e strisciarlo (termine tecnico saggiato) sulla pietra paragone. In questa maniera si depositerà una piccolissima parte di polvere d’oro sulla pietra di paragone. Successivamente si dovrà prendere l’acido nitrico .Per l’ oro ce ne sono in commercio di diversi tipi a secondo del grado di concentrazione. Prendete l’acido per l’oro a 24 K e depositate una goccia sulla polvere fine di metallo prezioso e poi notare che tipo di reazione accade.

Se la striscia di oro si dissolve, il metallo saggiato non era oro o è un oro meno puro, se scompare anche con l’acido a 18K, allora fate la prova con l’acido da 10 k; se scompare anche con questa prova allora è un falso mentre se resta la striscia di metallo è oro a 10 carati.

strisciare l'oro sulla pietra di paragone1 strisciare l’oro sulla pietra di paragone

2 come vedi la polvere si oro si è depositata sulla pietra di paragone

3 mettere una goccia di acido nitrico sulla polvere di oro3 metti una goccia di acido nitrico da 24 k sulla polvere di oro

se la striscia di metallo scompare l'oro è falso4 verifica: se la striscia di oro scompare è un falso (striscia sopra)

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