You don’t need to go up to 400°F to decompose baking soda into washing soda. Decomposition starts around 122⁰F (50⁰C) and is complete at around 250⁰F
details
https://en.m.wikipedia.org/wiki/Sodium_bicarbonate
Heating to transform (baking soda) sodium bicarbonate into (washing soda) sodium carbonate does remove moisture but also removes carbon dioxide :
When sodium bicarbonate (NaHCO3) is heated, it undergoes a decomposition reaction to form sodium carbonate (Na2CO3), water (H2O), and carbon dioxide (CO2).
The reaction can be represented as :
2NaHCO3 + heat → Na2CO3 + H2O + CO2You can also do it in a pan on the stove top. Basically just heat up the baking soda over medium-ish heat. Once it gets hot enough, it’ll “bubble” as the carbon dioxide and water is driven off as gas. Once it stops “bubbling”, it’s done. It’s a bit faster than the oven method, but it’s more active since you have to stir it regularly.
You can also weigh the powder before and after heating it to see if it’s fully covered to washing soda. The resulting washing soda should weigh about 1/3 less than the starting amount of baking soda.
I also wonder about the cost of using the oven, and whether it’s cheaper than just buying washing soda.
P = = oven average power ~1kW=1/1000MW
C = = electricity cost ~50 to 200 $/MWh
Δt = = process time duration ~1.0h
Total = P x C x Δt
… so, a few cents maximum, right ?
… it’s more the time and effort you put in !When you put it that way, it’s not nearly as expensive as I thought.
where the fuck are these people buying detergent that is 80x the ingredients they listed? isn’t bar soap also industry made?
also I’m sorry maybe there’s legit uses for it but whenever I hear someone say essential oil I assume they’re knee deep in grlftland and have fucking crystals and shit all around the house.
The price things gets me too. I was actually talking about this with a coworker a couple months ago. I live alone so I’m not doing nearly the amount of laundry that some people are doing but even then that last bottle of laundry detergent I bought cost me like 9 bucks and took a bit over 2 years to go through. I think I’m fine spending 4.50 a year on my laundry supplies.
where the fuck are these people buying detergent
I just did the math on mine, I’m paying about 10 cents per cycle for laundry detergent. Even if the ingredients to make my own were literally free, I’m still only saving about $5 per year. Not worth my time.
So you just saw the words “essential oil” and quit reading? They’re using it to make their laundry smell good, not cure cancer.
it was at the end, there wasn’t much left to quit
Essential oils will not cure diseases or anything, but they are great for making things smell nice. I would give using these in a dryer ball a pass.
fair
Everything related to cleaning and hygiene industry is a scam
Hygiene, beauty, and medicine. All products with literally pennies worth of ingredients charging hundreds to thousands of times what they cost to make.
Medicine has the excuse of going to research at least. But we all know that system is broken.
Totally in with the ‘make your own soap’ mentality. I’ve been making my own laundry soap and liquid hand soap for ~6mo, and I’m still working through the first set of supplies I got for both. Only downside to making it yourself is the time commitment, but I’ve got it to a point where once I have the batter made, I just throw it and some distilled water into a covered mason jar, put in a covered stock pot with enough water to get around the inner water level and just let it simmer for a few hours.
It’s actually super simple to make my laundry soap, it’s just a 6:6:2:1 ratio:
Baking soda:Epson salt:washing soda:sea saltWorks great and take the smell out of my potty training son’s laundry.
I use soap nuts for washing and vinegar as the softener. It comes out perfectly clean but has a neutral smell (which might smell weird when you first start doing this). I sometimes add a tiny bit of store bought softener to the vinegar for stuff like more expensive hoodies and tshirts.
It’s worth noting that cat owners(at least, never had anything buts cats) should avoid certain essential oils, As our furry pals’ little organs aren’t equipped to process them, and they can easily be deadly!
@pseudo@jlai.lu, saw you mention essential oils too, just a PSA.
Baked baking soda is used to make ramen
But it can also irritate your skin
Yeah I’m not putting all that effort and potentially ruining my washing machine to save me a few cents per wash. That seems ridiculous.
You don’t even have to buy the fancy, expensive, in a pod detergent or anything, considering they always contain the same stuff that comes in a box/bottle. Just buy whatever’s cheap.
Not just the effort, but by the time you buy all those ingredients, you’re probably paying more than you would for normal laundry detergent.
And if you use Dr. Bronner’s bar soap as recommended, you’ll be paying out the ass.
Not to mention the gas to go to the three separate stores you probably need to buy that shit from.
Eh, all of that stores really well, so buy in bulk.
Yea, making your own laundry detergent from grated soap and borax is something people with money do to convince themselves theyre frugal. When in reality there is no way in hell youre making a commodity cheaper than GreatValue ™
Yeah, the cheap standard powder detergent would probably be less expensive. The volume you’d need to make to beat it is huge. Like, maybe five years’ worth.
I am also laughing at making washing powder in the oven to save money. The amount you’d spend on electricity would put you in the red, unless you live in a petrostate with free electricity or something.
Lol yeah I didn’t even consider that. At this point it almost feels like some of that has to be trolling. Either that or there is a large detergent hobbyist community out there that I have just not been aware of.
The amount of free time you’d have to have, as well, to even consider baking the powder for an hour per round to make it usable… After a certain point my time is valuable to me and I’d rather just pay a dollar or two extra to not have to worry about all this mess.
Indeed. Or working for prison slave wages.
The only reason why clothes get staticky in the dryer is because of the heat. If you run the dryer for 10-20min after drying with no heat they’ll come out without a trace of static.
Ive stopped using softener and dryer sheets a while ago; just detergent and for the first load of the week (usually towels) a short cycle with vinegar to clear up any mineral deposits left by my horribly bad hard water.
Nobody’s mentioend laundry detergent sheets yet? Super cheap. I buy the Poesie brand. 160 sheets in a box for $9.49. That’s just under 6¢ per load. For my two loads of laundry per week, a box lasts me a year and a half.
Bonus: the box takes up almost no space, 6" x 5" x 3".
Also, white vinegar is an awesome replacement for fabric softener!
Washing Soda
No. Just no. Sodium carbonate, you americans!
What… ? Bar soap? Which coats your skin in wax and makes you feel like a walking crayon when you wash yourself with it?
No thanks, I’ll stick to my detergent and dryer sheets.
(which do work btw, I grew up poor without them and HATED the feeling of my clothes, and the static. Pissed me off all the time. Grew up, started making money, and bought dryer sheets, boom problem solved.)
Hello electricians and safety nerds. Fabric softener removes the fire rating on fire rated clothing protecting you from arc flash hazards.
Yes, and it will even say so right on the tags. At least it did on the 35 year old bunker gear I wore when I was young and a volunteer fireman in my small rural town. They had special washing instructions right on a big tag sewn on the inside to the coat and pants.
I want to know more.
This is pure conjecture, but my guess is that the film of fabric softener left on the clothes would interfere with the fire retardant fibers/may be flammable itself.
From my understanding, the old fire gear I wore as a much younger man, the fabric was treated with special chemicals that could be washed out if not laundered correctly.
My favorite is the Tide Free and Clear commercial where the kid goes “look dad, it’s just as clean but without any of the chemicals that harm me!” They’re literally admitting their core product contains harmful chemicals yet people are still buying it!
I’m not convinced about the cost. A kilogram of borax seems to run about $10CAD. 2 cups, at 1.7g/CC, would be about 850g, so $7 just for the Borax. Unless there’s a much cheaper place to get it…
A ~5L jug of Tide costs $31, or about $6/L. If they have approximately equivalent cleaning power per volume, Tide wins.