#agno3

[jankratochvil]

Ambrotypie 24x30cm expozice 10 sekund historickým portrétním objektivem E. Francais 19 1/4, 12x10” Vaši fotografii touto technikou si již můžete objednat nebo před zarezervovat prostřednictvím mých stránek nebo eshopu, odkazy v bio. - Ambrotype 24x30cm 10 seconds E. Francais brass lens #wetplate #trebic #ambrotype #tintype #fotograf #agno3 #collodionhumide #handmade #czech #photostudio #attic #kolodium #třebíč #collodion #wetplatecollodion #portraitphotography (at Jan Kratochvil Photography) https://www.instagram.com/p/CWgNozYIyNk/?utm_medium=tumblr

[focus-on-pharmacy]

Silver nitrate (Argenti nitras) - which is used to produce solutions.  AgNO3  has strong antiseptic effects.

[thunderheadfred]

[focus-on-pharmacy]

I added water and AgNO₃ to metamizolum natricum and after few moments I should observed blue sludge. I don’t know what I did wrong but it doesn’t matter, because this glitter is  a w e s o m e.

[focus-on-pharmacy]

09/11/2017

Today on my Drug Chemistry lab I’ve had to detect unknown chemical compound (drug). First I was testing sulibility in water and methanol and next I added sodium hydroxide (NaOH) and I was heating it on the burner. My clear solution changed color to orange. I’ve already known that I had chloramphenicol in my test-tube, but I decided to confirm it by test to Cl- ion with AgNO₃ and I was observing white sludge darkens on expousure to light. 

[sublimepizzastarfish]

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[jankratochvil]

Fotografoval jsem starý zámek asi 100 let starý z původních dveří z našeho domu. - I photographed an old door lock 🚪 about 100 years old from the original door of our house. #agno3 #fotostudio #trebic #key #hasselblad #tintype #memo #january2021 #kolodium #wetplateprocess #collodion #alternativeprocess #doorlock #key (v místě Jan Kratochvil Photography) https://www.instagram.com/p/CKq7h7VnK7B/?igshid=drlr44s4wum2

[jankratochvil]

Testy čerstvé stříbrné lázně 💦 Tests of the new fresh silver bath #agno3 #fotostudio #trebic #key #hasselblad #tintype #memo #january2021 #kolodium #wetplateprocess #collodion #alternativeprocess (v místě Jan Kratochvil Photography) https://www.instagram.com/p/CKhSCnoHvLf/?igshid=1j66xazip5rn0