我的網誌清單

2026年3月19日星期四

RMD

 RMD


Retirement topics - Required minimum distributions (RMDs) | Internal Revenue Service


Appendix B. (Continued)

 
Table I
(Single Life Expectancy)
(For Use by Beneficiaries)
    
AgeLife ExpectancyAgeLife Expectancy
6027.1915.3
6126.2924.9
6225.4934.6
6324.5944.3
6423.7954.0
6522.9963.7
6622.0973.4
6721.2983.2
6820.4993.0
6919.61002.8
7018.81012.6
7118.01022.5
7217.21032.3
7316.41042.2
7415.61052.1
7514.81062.1
7614.11072.1
7713.31082.0
7812.61092.0
7911.91102.0
8011.21112.0
8110.51122.0
829.91131.9
839.31141.9
848.71151.8
858.11161.8
867.61171.6
877.11181.4
886.61191.1
896.1120+1.0
905.7  


2026年3月9日星期一

Gold Rush

Videos

https://www.youtube.com/watch?v=ASQCa7mfjVo.   part 1

https://www.youtube.com/watch?v=gt-OOWxr7_s.     part 2

https://www.youtube.com/watch?v=5TNy93baIGM

https://www.youtube.com/watch?v=pyvpaPr-J6I

https://www.youtube.com/watch?v=P6JwaAc8B5Y.      7 months

https://www.youtube.com/watch?v=LL1H_XY4zM8.   1 year   hydrogen peroxide

https://www.youtube.com/watch?v=mvAtXNc06Jo.     1 year vinagar

https://www.youtube.com/watch?v=O0Q_qkzIxio.    not show the melting process


https://www.youtube.com/watch?v=0cjDwglpnvg.   burn and chemical

https://www.youtube.com/watch?v=vw9Zf6UnDIE.   practical cut

https://www.youtube.com/@ScrappingIrish.    scrapping Irish channel , he uses nitric acid.

https://www.youtube.com/watch?v=BIqDK23_Rs4           DIP IC gold and silver

 https://www.youtube.com/watch?v=ada0vwSkyK8.          use caustic soda to unveil the pcb to see gold

https://www.youtube.com/watch?v=8Jk8SyC8fco

https://www.youtube.com/watch?v=-yM3Zdx-DYw       no acid smelting , not full extraction.

https://www.youtube.com/watch?v=tQ2dKTQrNCA.   how to chip off components on boards

https://www.youtube.com/watch?v=hDuFNmSQAUc.    no nitric acid.  11.58g gold


https://www.youtube.com/watch?v=UoPx1Drfq3U.    gold from connectors

chemical making stanneous chloride

https://www.youtube.com/watch?v=jY7YlLQsryI

https://www.youtube.com/watch?v=iyHtcoFR0Ig.  plumber no lead solder containing 90% tin

low grade pins gold extraction

https://www.youtube.com/watch?v=vUhnttmwvrA

https://www.youtube.com/watch?v=RbGU-G6n0SE.   practical one

https://www.youtube.com/watch?v=sbpRKSh5g6c.  welding machine using laptop power supply

https://www.youtube.com/watch?v=L91CIorE3xs.   i like practical one rather than just talking

https://www.youtube.com/watch?v=pQoSVHFJqAs. sorting components and id gold

https://www.youtube.com/watch?v=ievbxE9y5vo      muratic acid to dissolve solders pcb

https://www.youtube.com/watch?v=NTVfTXw0i8Q.   find gold Indian traditional methods

https://www.youtube.com/watch?v=R5A5TgqbPFg.    indian guy second video mercury

https://www.youtube.com/watch?v=ObddNx47Mmo. indian guy 2 kinds of powders?

https://www.youtube.com/watch?v=nlRSs2RPoTQ.   white guys, not sure what method? not efficient

https://www.youtube.com/watch?v=IjDbyugJcmM.    extract gold in 5 hrs.

https://www.youtube.com/watch?v=RPeFWcuuD58. palladium and platinum from ceramic capacitors

   


https://www.youtube.com/watch?v=MSJyk8RFNvs   vinagar and salt , 5 months ago

https://www.youtube.com/watch?v=RWf0XLBP9_c.        ram chips cleaning solution links available 

https://www.youtube.com/watch?v=I90bWs1YACo.       ram chips.      venturi blower fume extract link


https://www.youtube.com/watch?v=RUCvPy09Fbg.    vinagar and salt

https://www.youtube.com/watch?v=tAH46YTQH5Y.   remove tin solder  citric acid h2o2


https://www.youtube.com/watch?v=VZ6LBAL6rFc.      BGA  muratric acid

Tin always been a trouble in gold recovery process so it's necessary to clean solder from components before start processing for gold.

here I'm making a special solution which remove soldering specifically and leave copper and gold plating untouched. 

Hydrochloric acid is widely used by refiners to remove tin but it's time consuming prossece and something it also start releasing gold foils into the solution. due to presence of atmospheric oxygen copper would get dissolved and gold foils release....

https://www.youtube.com/watch?v=w9JHhjQjaeQ.    remove tin solders fast.  part 1

https://www.youtube.com/watch?v=VeMWe2Px9jg.  part 2

https://www.youtube.com/@PickyPlans.        Picky Plans youtube channel

https://www.youtube.com/watch?v=-vMqZlQUplA.     cd dvd drive

 

https://www.youtube.com/watch?v=sJs31qK2ClM sulphuric acid DIY , many links on description 

https://www.youtube.com/watch?v=NHBDXtn7pjA. same guy , nitric acid

https://www.youtube.com/watch?v=l9ifS3ubiBc.     sulphuric acid from epsom salt

https://www.youtube.com/watch?v=XGEv9RGrvNY.   making copper sulphate from epsom salt


https://www.youtube.com/watch?v=ohJkyZ_G8-M.     laser gun  out of topic

Articles

https://lets-rebuild.com/getting-gold-out-of-microchips.html#google_vignette


Nitric Acid


Amazon.com: Nitric Acid Substitute 8 Ounces : Arts, Crafts & Sewing




Worked good, I mixed 4 tbs of sodium nitrate to 180mL of Hydrochloric acid and some water to dissolve cpu pins.

 Don't use this stuff to refine gold it does not work it ruins the whole process.

 I've used it in three processes and it's failed all three times.bs of sodium nitrate to 180mL of Hydrochloric acid and some water to dissolve cpu pins.


Reviewed in the United States on September 13, 2022

Starts working almost instantly. Do not worry about dissolving or pulverizing beads of sodium nitrate they will dissolve on their own.

I mixed a third of a cup of 33% hydrochloric acid with 2 tbs in a pyrex glass. This was a preliminary test and what I found was….

With in less than 10 minutes the mixture-had already stripped the gold plate off the item I was using as a test subject. So as far as removing gold plate this item is ideal for someone not interested in making nitric acid. However even past the point of the gold plate being dissolved the mixture was still dissolving the base metal underneath. I am assuming that in perhaps a few hours it will be done. And right this is not a high powered solution to dissolving your gold, it will take some time but it will get it done, its creating nitric acid but a weak solution.

Consider this. I pay $10 for 1 gallon of 33 percent hydrochloric acid. The sodium nitrate is cheap as well. I will take this mixture and deal with waiting for the reaction to finish to save the kind of money I am saving and to avoid having strong nitric acid on hand.

Please though you might not see the fumes but they see there. Leave it outside in a safe protected area. Keep the solution away from your pets!!!

Urea

Urea is nitrogen-containing organic compound produced in the liver as waste product of protein metabolism and widely used as nitrogen-rich fertilizer.

Chemical Nature

Biological Role

Industrial and Agricultural Uses

Historical Significance





40 lbs. Box Urea Fertilizer

Contains 40 lb.
$82.45
($2.06 /lb.)





https://www.walmart.com/c/kp/fertilizer-urea




https://www.amazon.com/Commercial-46-0-0-Granular-Prilled-Fertilizer/dp/B00BFNU0BK/ref=asc_df_B00BFNU0BK?tag=bingshoppinga-20&linkCode=df0&hvadid=80401998411353&hvnetw=o&hvqmt=e&hvbmt=be&hvdev=c&hvlocint=&hvlocphy=87443&hvtargid=pla-4584001477643495&msclkid=ce479eb6c7f51b3c7ed6f70b743b8bc8&th=1







CITRIC ACID
https://www.amazon.com/Viva-Doria-Citric-Grade-Grain/dp/B0C5NQM8S1/ref=asc_df_B0C5NQM8S1?tag=bingshoppinga-20&linkCode=df0&hvadid=80127120445507&hvnetw=o&hvqmt=e&hvbmt=be&hvdev=c&hvlocint=&hvlocphy=87443&hvtargid=pla-4583726596084510&msclkid=015ce934d5a2102fad40808963f19781&th=1

Thiourea dioxide is an organosulfur compound used primarily as a reducing agent in various industrial applications, particularly in textiles and photograph
This is NOT Thiourea dioxide for woad and indigo dying BUT if you can't find Thiourea dioxide, you can convert Thiourea using household hydrogen peroxide: CH4N2S + 2H2O2 → CH4N2O2S + 2H2O. One needs an accurate scale and understand working with chemicals inherently requires knowledge and cautions.