Siphoning vs. Pouring

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austexjwlry

Well-known member
Joined
Jun 5, 2007
Messages
116
I got into habit of siphoning with small rubber tubes after reading Hoke etc. because you get less disturbance of settled materials through siphoning.

Technique is: hold tubing ends together, fill with water, hold finger over one end of tube which you place in receiving container. Put other open end of tube at least one inch above settled material to be washed etc.

I now believe siphoning with small tubing may cause you to stay in too close proximity to hot acids etc. for too long! Please always use fan or blower to direct fumes away from you.

Is this why I usually see pour instead on siphon in this forum?

I had a bad experience with inflaming my lungs. Went into pneumonia both lungs. The treatment at E/R was nebulizer for asthma type symtoms, new enzyme based antiboitics for a week. Tylenol for 103 to 105 degree temperature I'd run for almost a week. Bed rest. Should have gone to doctor much sooner than I did! Expensive mistake!

My formula was arrogance/ ignorance + casual attitude towards danger/complacency = Trip to E.R at 2am!

Wayne
 
That's a dam good point you make Wayne. Trust me i know. :)

When i use to work around sweat furnaces and do commercial coatings. I would constantly have what most people would call a cold. Not.

These are often times respiratory infections. These come from the constant expose to the Environment in which they are used. Remember, airborne it is 1000's times more easily absorbed thru the lungs than thru the skin.

Ralph
 
I finally bought me a SCBA rig this weekend. Now I'll need to get a spare bottle and have one of my fireman buddies show me the ropes on how to properly inspect and adjust it. My days of taking chances with toxic gases are over. I've been lucky enough to have a work space which is naturally well ventilated.

I'm in the process of remodeling my workshop to accommodate a fume hood and protected work area. Maybe I'll get started on the hood soon. I'm considering a scrubber on the exit side for evironmental safety as well.

Steve
 
Noxx said:
Why just not wearing a full face respirator with Acid gases cartridges ?

That's not the ideal situation. Creating an environment that is safe would be the decision of choice. A solution to all of this is to work with a fume hood---one that displaces an adequate amount of air. I would rely on the respirator as an added feature to be used when necessary only---especially on a hot summer day!

I used my respirator (with chemical filters) only when handling bromine----otherwise I relied on my fume hood and enjoyed virtually total freedom.

Harold
 
Noxx,

I choose the SCBA for peace of mind. I feel like breathing air from the tank will insure I don't get a dose of nasty gases. I sure the respirator would do fine and be more comfortable.

How much do the filters cost and how long do they last? Do the filters scrub all types of gases and harmful chemical vapors from the air? Do they hold the trapped vapors when exposed to low heat?

Steve
 
The acid gases cartridges for my mask (6000 series) are 10$ a pair.
http://www.allergybegone.com/3macgascar60.html

You can also get Organic vapors (solvents like acetone) + Acid gases
As low as 11$ a pair (if you buy a pack of 5 pairs)
http://filtera.stores.yahoo.net/3morvaacgasc.html

But It's a good question, I don't know how long they last ! I don't use my respirator ofter since I habitually work outdoors.


Additional Information
Use in a variety of applications, including pharmaceutical, petrochemical, utilities, aluminum reduction, chemical manufacturing, laboratories, and pulp and paper. When properly fitted, helps provide respiratory protection from certain organic vapors, chlorine, hydrogen chloride, sulfur dioxide, or hydrogen sulfide (escape only) or hydrogen fluoride at concentrations up to 10 times the Permissible Exposure Limit (PEL) with half facepieces or 50 times PEL with full facepieces. Full facepieces must be quantitatively fit tested to claim assigned protection factor above 10 in negative pressure mode. Not for use in environments that are immediately dangerous to life or health (IDLH).

Here is a good website about 3M respirator if you want to know the price.
http://www.expresssafety.com/3M_Cartridge_Respirators.asp

If you find how long the cartridges last, please tell it to me.

Thanks
 
Noxx,

Do the cartridges have some sort of indicator that let's you know when they are contaminated?

Steve
 
http://www.ilpi.com/MSDS/ref/fumehood.html

http://www.ilpi.com/MSDS/ref/respirator.html

Laboratory Chemical Hood User's Guide
http://louisville.edu/admin/dehs/lsfume.htm

Now this is interesting :arrow:
http://www.osha.gov/SLTC/etools/respiratory/advisor_genius_wood/advisor_genius.html


Their are some guide lines, But really personal experience is the key. So many different condition parameters per users, that no set value can really be generalized. Once you open the package the compounds in the cartridges start to break down. In other words you can't use it and store it for extended periods of time and not expect some loss of protection.

Ralph
 

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Being concerned over te safety aspect I do not intend to heat any of my reactions if I do not have to.

If I have understood correctly, I can use the AP and HCl+Chlorox methods without extra heat, I feel this should minimise unwanted fumes AND minimise the amount of gold dissolved into the AP solution.

I will of course still work in a well ventilated area...

Do my assumptions seem sound?
 
Hi All,

My first post to the forum.

I live in the UK and work as a train driver.

I am also a keen PM recover/refine student.

I started out a few years back by buying Megan Roses book.
I then found the latest CD by No_Reserve on eBay and found him to be a very helpful chap.
Since then, i've been following the advice given by Dr Charles, who goes by the name "Gldman" on eBay, which has produced results of varying success. He too is a very helpful guy.

Anyway, a question if i may.
Having accidently got a lung fiull of the brown stuff, i'd rather not repeat the exercise. I've been looking at the respirators that are available but not sure which type i should be buying and the type of filters that fit them.

The nasty brown gas that seems to be always present. Is it an Organic or an In-organic gas?
Will a standard Acid Gas cartridge do the job?

Any advice would be welcome

Kind Regards
Buzz
 
No_Reserve :arrow: :shock: :shock:

Yeah i hear he's a pretty good fellow :twisted: :twisted: :wink:

Welcome to the forum Buzz.
 
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