CSIR Technology Portal
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 Technology Profile

Title:

Dip Cleaner cum Brightener for Gold and Diamond

Value Proposition:

A dip cleaner for gold and diamond manufactured from Sodium hypochlorite and sodium hydroxide.

Summary Application:

The dip cleaner can be used for Cleaning and brightening of used gold and diamond to enhance the glitter, it is also possible to carry out ultrasonic cleaning of bulk quantity of gold and diamond jewelry, it can be used as a jewellery cleaner in domestic use.

Advantages:
  • The advanced formulations is free from harmful mineral acids and other harsh chemicals making it safe for domestic use.
  • Cleaning is performed by dipping the jewellery in cleaning solution for 30 minutes followed by washing in water.
  • Metal loss during cleaning is negligible even if gold items remain in solution for several hours.
  • Gold jewellery with embedded precious stones can be safely cleaned using the dip cleaner. 
  • Rubbing is not required for cleaning and hence difficult to access areas in jewellery can be cleaned quickly and efficiently by simply dipping it into the solution. 
  • The cleaning solution can be used as the medium in ultrasonic cleaning bath to clean bulk quantity of gold jewellery in short time without affecting the embedded precious stones.
  • Same cleaning solution can be used several times and can be safely disposed off without any environment pollution.
  • No solid or liquid waste is generated during the cleaning process

Commercialization Status: Already Commercialised
Tech. Readiness Level:
CSIR-National Metallurgical Laboratory
CSIR-National Metallurgical Laboratory[CSIR-NML]
:  director[at]nmlindia[dot]org
:91-657-2345202
:https://www.nml.res.in
Industrial Applications: Applications/Use [Materials] Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes]
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