Tuesday, January 6, 2009

What is Acusol 445?

ACUSOL 445 is a, Rohm and Haas product, detergent polymer for Industrial Machine Dishwash (Warewash). It is available in the following grade:

ACUSOL™ 445 - partially neutralized grade
ACUSOL™ 445N - fully neutralized grade
ACUSOL™ 445ND - spray dried form

ACUSOL 445 is a homopolymer of acrylic acid with an optimized molecular weight to be used in industrial and institutional detergents.

ACUSOL 445 with selected molecular weight around 4500 in order to optimize the following properties:

Chemistry and Mode of Action
  • Anti-precipitation: ACUSOL 445 will increase solubility of precipitating salts by threshold effect. This allows it to reduce in the wash bath precipitation of inorganic salts (carbonates, phosphates, sulphates of Ca and Mg).
  • Crystal distortion: this polymer gets entrapped into crystal lattices, preventing their growth and facilitating their breakage. This minimizes adherence of salts on surfaces and facilitates their elimination by rinsing.
  • Dispersing properties: this polymer is a good dispersant for soils and will help to prevent their redeposition on surfaces in particular glass and dishware.
  • Processing aids: the polymeric and chemical nature of ACUSOL 445 will bring binding properties which can be useful in several detergent manufacturing processes, especially tableting.

ACUSOL 445 is a key ingredient in institutional and industrial cleaners. It might also perform in dishwash detergents. By using this polymer, the detergent manufacturers will enjoy the following advantages:

  • Inhibition of crystal growth, thus preventing precipitation of carbonates, phosphates, or silicates.
  • Dispersion of precipitates in the cleaning bath to avoid settling and scaling on surfaces and fibers.
  • Improvement of filming maintenance by soil dispersion, which minimizes organic components deposition on glass and dishwares.
  • Increase of bleach stability, especially in chlorinated formulations, by binding heavy metals which destabilize chlorine species through catalytic reactions.
  • Use in medium alkaline to very alkaline formulations, due to high solubility of ACUSOL 445 in caustic products. Caustics should be added slowly to a water premix containing polymer to avoid high pH gradients.

For more product information please visit the source website.

Related Links:

Pinoychem formulation with Acusol 445

  • Alkaline Scale Inhibitor

Monday, January 5, 2009

What is Tetrapotasium Pyrophosphate (TKPP)?

TKPP image
Tetrapotassium pyrophosphate, anhydrous is a white powder or granular material, highly soluble in water, which gives alkaline solutions.

Formula: K4P2O7
CAS Index Name: Diphosphoric Acid, Tetrapotassium Salt
Potassium pyrophosphate; Diphosphoric acid, tetrapotassium salt; Tetrapotassium pyrophosphate; TKPP
Uses: Sequestering agent, highly soluble in aqueous solutions; excellent deflocculating/dispersion properties; commonly used in liquid detergents.

Related Links:

Chemical formulations with tetrapotassium pyrophosphate (TKPP)
Material Safety Data Sheet (MSDS)


Friday, January 2, 2009

What is Sodium Carbonate?

Sodium Carbonate Image from www.qualitytargets.com/catalog/DSC04030.JPG
Sodium carbonate (also known as washing soda or soda ash), Na2CO3, is a sodium salt of carbonic acid. It most commonly occurs as a crystalline heptahydrate, which readily effloresces to form a white powder, the monohydrate. It has a cooling alkaline taste, and can be extracted from the ashes of many plants. It is synthetically produced in large quantities from table salt in a process known as the Solvay process. Washing soda is a highly alkaline chemical compound which can be used to remove stubborn stains from laundry. It also has numerous uses around the house, and it is used in a range of industrial applications as well. Washing soda should not be confused with washing powder, which is a powdered soap used as a detergent; it is also not the same thing as baking soda, although the two compounds are closely related. The chemical formula for washing powder is Na2CO3 , and it is also known as sodium carbonate. It is a salt of carbonic acid, a chemical which produces a wide range of salts collectively known as carbonates. One common source of washing soda is the ashes of plants; for this reason, it is sometimes called soda ash. Sodium carbonate can also be extracted from from sodium chloride, also known as table salt. In laundry, washing soda accomplishes several things. The high alkalinity of washing soda helps it act as a solvent to remove a range of stains, and unlike bleach, washing soda does not usually stain. It is also used in detergent mixtures to treat hard water; the washing soda binds to the minerals which make water hard, allowing detergent to foam properly so that clothing will come out clean, without any residue. Sodium carbonate is also used by some textile artists, since it helps dyes adhere to fabric, resulting in deeper penetration and a longer lasting color.

More information: Washing Soda Soda Ash Sodium Carbonate

Related Links: