General information is given, hereafter, for the ALKALINE cleaning agents and related chemicals, which are commonly used by JPCHEMICAL LTD, during chemical cleaning services.
As general guidance the alkaline cleaning chemicals, named also degreasing chemicals, are used for the removal of deposits containing oil and greases.
The same chemicals can be supplied worldwide, in bulk quantities, on request.
The selection of the sufficient, safe and suitable cleaner is the main concern in design a chemical cleaning specification.
JPCHEMICAL can help online. Just a description of the problem should be submitted
through jpchemival@yahoo.com , accompanied with inquire.
JPCHEMICAL will respond with a detailed specification.
Tri- Sodium Phosphate (Sodium phosphate tribasic)
-----------------------------------------------------------------------------------------------------------------
As per our favorite Wikipedia, the free encyclopedia,
http://en.wikipedia.org/wiki/Trisodium_phosphate
General
Synonyms: phosphoric acid trisodium salt, trisodium phosphate, sodium phosphate, trisodium orthophosphate 12-hydrate
Molecular formula: Na3PO4 12H2O
CAS No: 10101-89-0
EC No: 231-509-8
Water solubility: 285 gl-1 at 20 C
Stability
Stable. Incompatible with strong acids. Keep dry.
Toxicology
Corrosive - causes burns. Avoid skin and eye contact.
Personal protection
Safety glasses.
Hereafter some simple every day uses of TSP are given
Tri-Sodium Phosphate has been used by painters for years and years as a heavy duty degreaser and all purpose cleaner.
TSP is formulated for removing Grease, soot and lead paint dust cleanup.
A washing of surfaces prior to painting helps insure a good clean "bite" for the finish coats of paint.
1/2 cup per gallon of hot water makes short work of removing grease from driveways and garage floors.
Paint Remover: Most latex paints including milk paint, on furniture can be removed by scrubbing with a strong solution of TSP. After stripping any piece of wood its always a good idea to wash well with TSP to remove the wax that is in most paint removers.
Around the house TSP is excellent for everyday cleaning ,
1/4 cup per 2 gallons of water easily removes smudges from painted surfaces, soap scum from ceramic tile and tub enclosures, soot and grime from around fireplaces. Excellent for washing your homes siding, roofs, RV's, Mobile homes and boats
Lawn and Garden: Remove grease and grime from lawn and garden equipment, mixed with oxygen bleach it will make your patio furniture sparkle, mildew and grime on the pool deck, Its uses are endless.
Sodium carbonate, anhydrous
--------------------------------------------------------------------------------
General
Synonyms: sodium carbonate, soda ash, disodium carbonate, carbonic acid disodium salt
Molecular formula: Na2CO3
CAS No: 497-19-8
EINECS No: 207-838-8
Appearance: white odourless powder
Density (g cm-3): 2.53
Water solubility: soluble
Sodium carbonate monohydrate
--------------------------------------------------------------------------------
General
Synonyms: carbonic acid sodium salt, sodium carbonate
Molecular formula: Na2CO3 H2O
CAS No: 5968-11-6
Density (g cm-3): 2.25
Personal protection: Safety glasses.
Sodium metasilicate 9-hydrate
--------------------------------------------------------------------------------
Molecular formula: Na2SiO3 9H2O
CAS No: 6834-92-0
Appearance: white crystals
Density (g cm-3):
Personal protection
Safety glasses, adequate ventilation.
Sodium hydroxide
---------------------------------------------------------------------
Synonyms: caustic soda, soda lye, lye, white caustic, aetznatron, ascarite, Collo-Grillrein, Collo-Tapetta, sodium hydrate, fotofoil etchant, NAOH, STCC 4935235, sodium hydroxide pellets, Lewis red devil lye
As per our favorite, Wikipedia, the free encyclopedia,
http://en.wikipedia.org/wiki/Sodium_hydroxide,
Molecular formula: NaOH
CAS No: 1310-73-2
EC No: 215-185-5
Annex I Index No: 011-002-00-6
Appearance: odourless white solid (often sold as pellets)
Specific gravity: 2.12
Water solubility: High (Note: dissolution in water is highly exothermic)
Stability
Stable. Incompatible with a wide variety of materials including many metals, ammonium compounds, cyanides, acids, nitro compounds, phenols, combustible organics. Hygroscopic. Heat of solution is very high and may lead to a dangerously hot solution if small amounts of water are used. Absorbs carbon dioxide from the air.
Toxicology
Very corrosive. Causes severe burns. May cause serious permanent eye damage. Very harmful by ingestion. Harmful by skin contact or by inhalation of dust.
Personal protection
Safety glasses, adequate ventilation, Neoprene or PVC gloves.
Ammonium hydroxide
--------------------------------------------------------------------------------------
General
Synonyms: ammonia solution (typically contains between 12% and 44% ammonia before dilution)
Molecular formula: NH4OH
CAS No: 1336-21-6
EC No: 215-647-6
Physical data
Appearance: colourless liquid
Vapour density: 1.2
Vapour pressure: 115 mm at 20 C (depends on solution strength)
Specific gravity: typically 0.9 (depends on solution strength)
Stability
Stable. Incompatible with copper, copper alloys, acids, galvanised iron, zinc, aluminium, bronze, dimethyl sulphate, mercury, alkali metals..
Toxicology
Concentrated solution is extremely damaging to eyes. Even contact with dilute ammonia solution can lead to serious eye damage. Harmful if swallowed or inhaled and in contact with skin. Very destructive of mucous membranes. Corrosive - causes burns. Typical TLV 25 ppm. Typical STEL 35 ppm. Typical PEL 50 ppm.
UN Major hazard class: 8.0. Packing group: III. UN No 2672.
Personal protection
Good quality safety glasses with side protection against splashes. Good ventilation. Do not work in the open laboratory with concentrated ammonium hydroxide solution.
|