OK, let's move on, but the answers to your questions can fill a book. Let's start somewhere:
Somehow you managed to talk about fixer and HCA at the same time. I assume, you know that they are totally different. Hypo and fixer, on the other hand, are the same thing.
Commercial fixers are based on sodium or ammonium thiosulfate and are often called ‘hypo’, which is short for hyposulfite of soda, an early but incorrect name for sodium thiosulfate. Ammonium thiosulfate is a faster acting fixer and is, therefore, referred to as ‘rapid fixer’. Unfortunately, some practitioners have continued using the erroneous term and expanded it referring to any type of fixer as ‘hypo’ now.
Regards Ralph W. Lambrecht http://www.darkroomagic.comThis electronic message contains information that is confidential, legally privileged or otherwise protected from disclosure. This information is intended for the use of the addressee only. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, printing or any other use of, or any action in reliance on, the contents of this electronic message is strictly prohibited. If you have received this communication in error, please notify the sender and destroy the original message immediately.
P don't print this e-mail unless you really have to On Nov 29, 2009, at 17:26, Ron Klein wrote:
I'm ready to move on.I am struck by the confusing nomenclature around various fixing agents. Hypo,fixer, hypo clearing agent This has become a bit of an issue for me as I am re evaluting my processes and realize the mistakes I've made. So here is a question. Do the vrious rapid hypo clearing agents containing ammonium sulfite differ significantly from sodium sulfite in their activity other than for spead of clearing?What is the role of hardener with modern paper and film emulsions?Can, should selenium be diluted in amonium sulfite or sodium sulfite for toning? I am also planning to go oderless. I long ago changed to thiourea for toning. Planning on a switch to F6. Any experience with citric acid for stop bath?Ronald Klein MDOn Nov 29, 2009, at 10:21 AM, "Ralph W. Lambrecht" <info@xxxxxxxxxxxxxxxx > wrote:NicholasAre you really suggesting that it is better for the environment to dump my chemicals drown the drain and pollute the water supply, despite the fact that waste management picks it up for free?Regards Ralph W. Lambrecht http://www.darkroomagic.comThis electronic message contains information that is confidential, legally privileged or otherwise protected from disclosure. This information is intended for the use of the addressee only. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, printing or any other use of, or any action in reliance on, the contents of this electronic message is strictly prohibited. If you have received this communication in error, please notify the sender and destroy the original message immediately.P don't print this e-mail unless you really have to On Nov 29, 2009, at 14:54, Nicholas O. Lindan wrote:"Ralph W. Lambrecht" <info@xxxxxxxxxxxxxxxx>hazardous-waste truck comes around (once a month), they take it off my hands for free.Nothing comes for free, and often those things billed as free are the ones that are most expensive. My problem with Haz-Mat disposal is the pollution the haz-mat operation generates in processing the waste. The pollution of the running the collecting truck,the pollution from generating the energy used by the plant, and then there is the _truly hazardous waste_ that is the final output of a haz-mat plant.Everything pollutes. Everybody pollutes. All I can do is try and pollute the least. If tossing it down the loo makes for less total pollution at the end of the day, even if it pollutes the river, then tossing it down the loo is the way I go.Nothing has come to the planet in 4 billion years and nothing has left, it is all just the same old shit.In the final analysis all we are is God's idea for recycling dinosaur poop. Nicholas O. Lindan Cleveland Engineering Design, LLC Cleveland, Ohio 44121= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = ==================================================================== To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.
