Guest guest Posted February 6, 2012 Report Share Posted February 6, 2012 ----- Forwarded Message ----- From: Sajithakumari Sivaprem <ssajithakumari@...> "dr_ashish_pandit@..." <dr_ashish_pandit@...> Sent: Monday, 6 February 2012 9:59 AM Subject: Re: Regarding fluorides Dear Ashish, 1000ppm=1mg/ml given in pink book. now,that is0.1g/100ml=0.1% so when we need to convert% into pppm multiply by 10,000 then,0.023% becomes 230ppm. hope it is clear ashish.. again about the percentage of flourine that is again in pink book 0.05% NaF contains.0.023% F. regards sajitha. Regarding fluorides Dear sajitha,Thank u very much. But I hv a doubt.Firstly how did u get 0.05%NaF=0.023%F Secondly, how do u convert percent of F into ppm of F ???This has always been confusing, can u pls pls help me with this ??Also,if there's any book which I can read that ll be gr8Ashish.Sent on my BlackBerry® from Vodafone Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 6, 2012 Report Share Posted February 6, 2012 ----- Forwarded Message ----- From: Sajithakumari Sivaprem <ssajithakumari@...> "dr_ashish_pandit@..." <dr_ashish_pandit@...> Sent: Monday, 6 February 2012 9:59 AM Subject: Re: Regarding fluorides Dear Ashish, 1000ppm=1mg/ml given in pink book. now,that is0.1g/100ml=0.1% so when we need to convert% into pppm multiply by 10,000 then,0.023% becomes 230ppm. hope it is clear ashish.. again about the percentage of flourine that is again in pink book 0.05% NaF contains.0.023% F. regards sajitha. Regarding fluorides Dear sajitha,Thank u very much. But I hv a doubt.Firstly how did u get 0.05%NaF=0.023%F Secondly, how do u convert percent of F into ppm of F ???This has always been confusing, can u pls pls help me with this ??Also,if there's any book which I can read that ll be gr8Ashish.Sent on my BlackBerry® from Vodafone Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 6, 2012 Report Share Posted February 6, 2012 And this also explains the same.hope u get it now areej. From: Sajithakumari Sivaprem <ssajithakumari@...> " " < > Sent: Monday, 6 February 2012 10:38 PM Subject: Fw: Regarding fluorides ----- Forwarded Message ----- From: Sajithakumari Sivaprem <ssajithakumari@...> "dr_ashish_pandit@..." <dr_ashish_pandit@...> Sent: Monday, 6 February 2012 9:59 AM Subject: Re: Regarding fluorides Dear Ashish, 1000ppm=1mg/ml given in pink book. now,that is0.1g/100ml=0.1% so when we need to convert% into pppm multiply by 10,000 then,0.023% becomes 230ppm. hope it is clear ashish.. again about the percentage of flourine that is again in pink book 0.05% NaF contains.0.023% F. regards sajitha. Regarding fluorides Dear sajitha,Thank u very much. But I hv a doubt.Firstly how did u get 0.05%NaF=0.023%F Secondly, how do u convert percent of F into ppm of F ???This has always been confusing, can u pls pls help me with this ??Also,if there's any book which I can read that ll be gr8Ashish.Sent on my BlackBerry® from Vodafone Quote Link to comment Share on other sites More sharing options...
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