Quote:
I think we have 3 questions at hand:
How to 'correctly' represent additives which have algaecide properties ?
and
How to preclude the growth of algae ?
and
How to reduce/eliminate the 'flocking' of excessive/incompatible additives ?
this should keep us going a while
how to represent ? just say what it is and what it does (if it 'incidentally' inhibits the growth of algae, just say that - no ?)
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Agree, agree, agree.... and..... agree.
Received the ACBlue today.... here's data from European Product Safety Sheet.
Composition & Classification of Ingredients:
Water 80 - 60%
Copper Sulphate Penthydrate CAS# 7758-99-8 10 10 - 24% XnR22 N
R50/53
Sulphuric Acid CAS# 7664-93-9 5 - 10% C R35
Hazard Identification:
Contains 5.8% sulphuric acid. Reacts with strong bases, reducing agents and excessive heat to produce sulphuric acid fumes.
Physical Properties
Form @ 25 deg C - Liquid, miscible with water
Odour - Mild Odour
pH - < 1.0
Appearacne - Clear Blue Liquid
Boiling Point - 104 deg C
Specific Gravity @ 25 deg C - 1.20
Vapour Pressure @ 20 Deg C - 0.1mm Hg
Solubility in water - Complete
Stability
Avoid - Contact with strong bases, reducing agents, and excessive heat
Hazardous Decomposition - May react with some metals to produce Hydrogen Gas
Toxicology
Oral LD50 - 1570mg/Kg
Dermal Irritation - Toxic Cat III
Ocular Irritation - Not tested
Ecologicology
Biodegradability - Not tested
Ecotoxicity - Toxic to aquatic organisms, may cause long term adverse effects in aquatic environment. Non-toxic at normal use levels (1:1000 ACBlue:Coolant)
Disposal
Chemical - Neutralise with Bicarbonate of Soda or Fertiliser Grade Lime. Dispose as fertiliser grade material
Drum - Wash thoroughly and offer for recycling
Transportation
UN No - 3264
Class - 8
PG - III
Shipping Name - Corrosive Liquid, Acidic, Inorganic, Nos (cont SulphAcid)
Regulatory
Label Name - Algitec
Symbols - Xi, N
Risk - R36/38, R51, R53
Safety - S1/2, S26, S45
Quote:
I played around with copper sulphate. It worked well except for two issues:
1) It attacks and eats nickel. All my barbs are bright nickel plated, but it didn't take long for them to turn into a rusted metal appearance due to the copper sulphate.
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Hmmmm.... not a good start, altho most of our kits ship with the (dreadful) Blue TEFEN barbs with the lousy ID which wouldn't be affected ( ? ) we were planning on getting in large stocks of chrome plated and nickel plated polished barbs for use with the new radiators & reservoirs...
Quote:
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2) The solution in water is highly electrically conductive. I've spilled water plenty of times over the internals of my computer. Never had a problem after a quick dry in the sun. With the copper sulphate solution a spill took out my CPU, and my motherboard, and nearly claimed the video card as well.
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And again not a good start.... but that's in terms of practicality - ie: How likely is a n00b to drown their rig, and how likely are they to have read any precautionary notes before purchasing the biocide....? Very and Not Very.... foresee lots of dead hardware here!