Yes, unironically. This is the first time where I really thought, ok this is too dumb, even for him. All the other instances I could still imagine him doing that in his narcissism combined with his stupidity.
- 35 Posts
- 470 Comments
Wrufieotnak@feddit.orgto
Ask Science@lemmy.world•Lake Pigments — What makes them precipitate? (and other questions)English
2·9 days agoThank you for the follow up! Interesting to read that a change in anion makes such a difference in result. But good to hear that you found a way forward.
Wrufieotnak@feddit.orgto
Ask Science@lemmy.world•Lake Pigments — What makes them precipitate? (and other questions)English
2·11 days agoGlad I could be of some help.
I’m interested to hear about your experiments.
Regarding your edit: sadly no, that is outside of my expertise.
Wrufieotnak@feddit.orgto
Ask Science@lemmy.world•Lake Pigments — What makes them precipitate? (and other questions)English
4·12 days agoHi, I am not working with dyes, so I can’t provide answers to those specific aspects, but give you some general chemistry one.
-
Precipitation means that the dye is not interacting as well anymore with the solvent (water in your case) after adding the prec. agent. This is possible via 2 mechanisms. Either the agent interacts with the dye directly or it changes the properties of the solvent (most often via the pH value) and thereby weakens the interaction. From what I gathered on wikipedia, lake pigments most often work through the first mechanism. The prec. agents you add are salts, made up of positive charged cations and negatively charged anions. Normally, water is a great solvent for ions, meaning they are soluble. The dyes however are organic compounds with one part that is very ionic, meaning very water soluble, and one part which is not ionic at all, which in general means not water soluble.
When you add the prec. agents, they first dissolve in water as well, but then its dissolved cations are interacting with the negatively charged groups on the dyes. That means the dyes are orientating themselves around the cations, which means that the non ionic parts are looking outside. Imagine it like a hedgehog rolling together -> only spikes on the outside and the spikes don’t interact with water -> they precipitate.
With that background: some dyes are better interacting with water than the prec. agent, which means they don’t precipitate as well. For other dyes, the “outside” is still interacting well with water, which means again: no precipitation, because even the combined form can be dissolved.
From what I gathered, the alum phosphate is not the precipitation agent itself, but rather to dilute the dye. But yes, your thinking is correct in that some groups better attach to the metal cation than others. Or since we are talking about organic compounds: The fundamental groups are the same (Hydroxy & Carboxy acid groups), but its rather the geometry of those groups that makes them latch onto the metal cation better. -
Definitely! But it completely depends on the mechanism of the precipitation as explained in question 1. I saw calcium and strontium mentioned, so probably magnesium works as well.
-
Because you add something to the dye which you can’t remove with cleaning: the precipitation agents! And you definitely don’t want to eat aluminum salts! So no, as chemist: please don’t eat anything where you added any salt besides table salt, if you don’t know specific that it is allowed to be eaten (tofu is precipitated by sepcific salts and ok for consumption for example). also, it might be that the concentrated form of the dye is not healthy for consumption
-
Since I am not working with dyes, I can’t answer you, but I was wondering what you mean here: Do you mean chemicals for precipitation or chemicals for dying?
-
Make your own fermented vegetables (sauerkraut, kimchi, raddish, …)! You can season it exactly as you like and its delicious!
So sorry, a lot of “can’t answer that”, but I wanted to provide at least a bit of basic chemistry background. So let me give you an additional part of info you didn’t ask for:
From what I found, one of the pigments in cranberries is cyanidin (wikipedia link) and that explains why you can’t precipitate it: it doesn’t have any carboxylic acid groups, which are normally the groups that most strongly interact with metal cations. But in the german wikipedia of the article it mentions, that the chloride version is nearly insoluble in water. So you could try adding simple table salt and see if that precipitates it. Second idea: it is also soluble in ethanol, so you could try and extract the berries with as high percentage alcohol as you have.
-
Wrufieotnak@feddit.orgto
Unpopular Opinion@lemmy.world•if you have food stamps you shouldn't celebrate Thanksgiving.English
2·13 days agoPlease check the community this is in.
It is 100% fitting and I think most people don’t check the community
Wrufieotnak@feddit.orgto
politics @lemmy.world•Deal to reopen government falters over Democrats’ distrust of Trump
4·21 days agoI meant to make fun of the MAGA idiots, just to be clear. I had hoped the amount of excessive question marks is indicator enough for my sarcasm. But I can understand that sadly there people as deluded as my joke on the internet, so it’s all good.
Wrufieotnak@feddit.orgto
politics @lemmy.world•Deal to reopen government falters over Democrats’ distrust of Trump
132·21 days agoWhat more do you sick leftists want? They have ideas of a plan!! 1! How can you not trust somebody like that???
Wrufieotnak@feddit.orgto
Patient Gamers@sh.itjust.works•What I'm playing 🪝🐶 Grapple Dogs: Cosmic Canines | Grappling hook platforming goes multiversal
2·24 days agoGreat post!
Do you recommend playing the first game first or is it better to immediately start with the second game and play the first one, if you want to have more?
Wrufieotnak@feddit.orgto
Ask Lemmy@lemmy.world•My parents like Pete Hegseth. How is this possible?
1·24 days agoNo. Hard No. The progressive Germany we (I live here) have today was fought AGAINST those that continued to shape Germany even after the war. A strong shift was the 68 movement that specifically questioned why people who worked in administrative positions under Hitler continued to work in sometimes the same positions in West Germany. And also it was not because the Germans were the one calling the shots. A lot of the democratic reforms were only possible in the first place because those Germans that championed them were backed by the guns of the allied forces.
And honestly most problems we currently have are exactly because of remnants from Nazi times that weren’t sufficiently destroyed.
And so currently we have exactly the same problem so many others have: conservatives who don’t conserve anything but rather are regressive and want back to a “good old days” that never existed
Wrufieotnak@feddit.orgto
No Stupid Questions@lemmy.world•If "James Bond" is a codename, would a hypothetical female operative filling the same role receive the same codename?
5·25 days agoThe number was reassigned because Bond was not in the MI6 at that time, yes.
Wrufieotnak@feddit.orgOPto
Patient Gamers@sh.itjust.works•Vampire: the Masquerade - Bloodlines, why is it so hyped?
5·26 days agoFrom what I found, it’s possible to play it on Linux through Wine, so not totally windows exclusive. How well it works depends probably on how willing you are to tinker, as always in such cases.
Wrufieotnak@feddit.orgOPto
Patient Gamers@sh.itjust.works•Thief 1 & 2, the grandfather of the stealth genre
2·28 days agoOh, that looks interesting, thanks for the info!
Wrufieotnak@feddit.orgto
No Stupid Questions@lemmy.world•When you attempt to get visas or citizenship status, you usually need legal documents from your home country, but what about dissidents who fled, and their government refuses to issue papers?
5·28 days agoCan you give me directions where that planet is with the same countries?

Wrufieotnak@feddit.orgto
politics @lemmy.world•DoD strips job protections from civilian employees, directs managers to fire with ‘speed and conviction’
5·28 days agoEliminating everyone from the war department that could be a hindrance/sabotaging for its usage inside the USA.
The modus operandus for the Trump clique till now has always been: instill fear in everyone and they let you do anything.
Wrufieotnak@feddit.orgto
Games@lemmy.world•When was the last time you actually laughed while playing a game?English
1·1 month ago… It took your comment for me to reread the other one and yes, that does make more sense.
Wrufieotnak@feddit.orgto
No Stupid Questions@lemmy.world•There's been 7 replies to this post, but the usual chain of replies on lemmy aren't opening up. Normally l use brave browser, but when l opened my account on firefox, it's the same. Where's the bug ?
5·1 month agoCould be from somebody who is blocked by you or your instance. You could try opening the post from another Lemmy server and try to see it then.
And if the comment is blocked, then all replies are also blocked for you.
Wrufieotnak@feddit.orgOPto
Patient Gamers@sh.itjust.works•Thief 1 & 2, the grandfather of the stealth genre
1·1 month agoWait, you could write on the map? Sure that was in Thief1&2? I can’t remember anything like that.
Wrufieotnak@feddit.orgOPto
Patient Gamers@sh.itjust.works•Thief 1 & 2, the grandfather of the stealth genre
8·1 month agoYeah, the biggest problem in my opinion is that they don’t commit to stealth, because they think the fan base is too small. So everything has to be solvable by violence as well. Which in turn leads to a worse experience than if they focused fully on that.
Which is why I’m so surprised that the indie Retro wave hasn’t yet created something like Thief with a new story/world. Should be easier nowadays with game engines and editors and I think there is no real competition there yet.
Wrufieotnak@feddit.orgOPto
Patient Gamers@sh.itjust.works•Thief 1 & 2, the grandfather of the stealth genre
13·1 month agoOh yes, that level is still in my memories after more than a decade. And for good reason. I will make a post about Thief 3 in the future if nobody else does it first.
Oh, I am not questioning the content of this message, but it’s style.
To write: there is a new word and then to seriously ask directly after what that word is… Is stupid, even for him.
That he managed to reshape the Republican party in his way is undeniable.