|
Homebrew Equipment A place to show, design and discuss the weird and wonderful electronic creations from the hands of individual members. |
|
Thread Tools |
9th Aug 2019, 10:26 am | #21 |
Moderator
Join Date: Jun 2003
Location: Oxford, UK
Posts: 27,787
|
Re: Ferric Chloride
You can buy washing soda from the detergent section of any supermarket.
You can be overly cautious over what is really a very small quantity of ferric chloride though. It won't do any real environmental damage if you dilute it with a bucket of water then pour it down the drain. It will be undetectably diluted by the time it ends up in the environment. |
9th Aug 2019, 10:28 am | #22 | |
Heptode
Join Date: Apr 2011
Location: Gosport, Hampshire, UK.
Posts: 597
|
Re: Ferric Chloride
Quote:
__________________
GQRP Club 4704 - BVWS Member |
|
9th Aug 2019, 10:30 am | #23 | |
Heptode
Join Date: Apr 2011
Location: Gosport, Hampshire, UK.
Posts: 597
|
Re: Ferric Chloride
Quote:
John
__________________
GQRP Club 4704 - BVWS Member |
|
9th Aug 2019, 12:26 pm | #24 |
Octode
Join Date: Jun 2011
Location: West Midlands, UK.
Posts: 1,571
|
Re: Ferric Chloride
This may seem a daft question but I was so poor at Chemistry I did no revision for 'O' Level (why I was put in for it I don't know) and got the result I expected.
I have got an ancient glass bottle of Ferric Chloride that I recovered from my late parents' garage. It will date from when I was a callow youth and lived at home. Will it be any good? |
9th Aug 2019, 12:36 pm | #25 |
Heptode
Join Date: Apr 2011
Location: Gosport, Hampshire, UK.
Posts: 597
|
Re: Ferric Chloride
I would think it would be. I'm hoping so! My Dad passed away in 1990 so all the bottles I have date from the 1980's.
I have made a few small PCBs over the last couple of years and it all seems to be OK, if a little slow sometimes where I've been pouring it back in the bottles and thus diluting it somewhat. I do have a bottle that he got me that's so far unopened and four times stronger so my intention is to dilute it with distilled water and go from there. John
__________________
GQRP Club 4704 - BVWS Member |
9th Aug 2019, 2:06 pm | #26 |
Heptode
Join Date: Dec 2014
Location: Lincoln, Lincolnshire, UK.
Posts: 583
|
Re: Ferric Chloride
I have a plastic bottle in the garage I have had for some time too. Not sure whether I have put it in a jar, just in case, as I was wondering about the plastic, long term. It is marked 'Archer' and I got it from Tandy many years ago before they closed. There are instructions for use on the bottle, which for disposal say to pour used solution down the toilet bowl and flush. I would guess times have changed lol
|
14th Aug 2019, 11:56 pm | #27 | |
Dekatron
Join Date: May 2010
Location: Greater Manchester, UK.
Posts: 18,675
|
Re: Ferric Chloride
Quote:
The only major exception is they often mix methadone powder with green syrup to the required strength as needed, simply because they wouldn't have enough secure storage space for all the dilute stuff their patients require. Not a pharmacist or dispenser, I'm just someone who provided IT for pharmacies for many years.
__________________
-- Graham. G3ZVT |
|
15th Aug 2019, 6:57 pm | #28 |
Dekatron
Join Date: Jan 2012
Location: Brentwood, Essex, UK.
Posts: 5,316
|
Re: Ferric Chloride
I remember a "gardeners question time" on Radio 4 a couple of years ago where someone asked about getting rid of greenfly. One panel member remarked that they used to spray with diluted washing up liquid , but due to H&S, because washing up liquid is an irritant if it gets in your eyes, they would have to don a complete body suit to do it these days! I understand that schools are not allowed to use ordinary household bleach these days, and I was recently given a 10 litre drum of PVA that the local infants' school couldn't use as it was now considered to be the wrong type. I just hope we don't end up like Germany, where I understand that it is compulsory to have your car washed at an approved car wash so that the dirty water can be collected and disposed of in an approved manner.
|
15th Aug 2019, 7:13 pm | #29 |
Heptode
Join Date: Nov 2009
Location: Scarborough, North Yorkshire, UK.
Posts: 507
|
Re: Ferric Chloride
It has been compulsory to take your car to the car wash in Switzerland for several years, also, it is against the law to use your washer after 10 pm. Some of their the soldiers keep their fire arms at home. Swiss train run on time and are extremely clean. the Swiss nation have frequent referendums about such matters.
|
15th Aug 2019, 8:42 pm | #30 |
Dekatron
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 9,637
|
Re: Ferric Chloride
As this thread appears to have run it's course we'll wash it down the drain before the 10pm curfew.
|