Silver Anti

Basic Info.

Specification	25 kg/Drum
Trademark	Number One
Origin	China

Product Description

The price is to be adjusted by negotiation for large orders.
INTRODUCTION
Silver anti-tarnish is a specially formulated solvent-free and anti-tarnish process for silver and silver electroplate. A monomolecular protective film can be formed during immersion in the bath, which prevents silver sulfide or other related oxidation reactions. This product consists of a highly active oxidation inhibitor soluble in water, the film is non-poisonous, non-irritating, which can be applied to jewelry, ornaments, all types of flatware and holloware, etc. It has a lubricating effect on contacts, so when applied to electronic connectors, it hardly affects contact resistance. Also, solderability will not be affected in any case.

EQUIPMENT
Tank: stainless steel, PP, PVC, PVDC or high density polyethylene.
Ventilation: required.
Heat system: PTFE.
Agitation: preferably by pumping.
Filtration: not required.
ANALYSIS AND CONTROL

1 ml Pipette	0.1N iodine
20 ml Pipette	0.1N sodium thisulphate
50 ml Pipette	1% starch indicator
250 ml Erlenmeyer flask	-

1. Pipette a 20 ml sample of silver anti-tarnish into a 250 ml Erlenmeyer flask.
2. Add 20 ml of 0.1N iodine.
3. Stir for 10 minutes.
4. Titrate with 0.1N sodium thisulphate to light yellow.
5. Add 1 ml of starch indicator (1%).
6. Continue titration with 0.1N sodium thisulphate to colorless end point.

Calculation:Silver anti-tarnish (ml/l) = 13.5 x (20-v)
Note: duplicate it to ensure the accuracy of the analysis results.
TROUBLE SHOOTING

Problems	Possible causes	Solutions
Streaks on the surface of the parts	Bad pre-cleaning	Ensure that all parts are thoroughly cleaned
	The rinse tank is contaminated	Rinse with warm water or speed up the water-flow velocity
Failed in anti-corrosion test	Testing concentrate of the Silver anti-tarnish	Adjust the concentrate to the standard range
	Check the temperature	Adjust the temperature
	Too short time to immerse	Extend the time
	The rinse temperature is above 30ºC (especially for decorative applications)	Reduce temperature to 30ºC

SAFETY AND ENVIRONMENTAL
Silver anti-tarnish should prevent from skin and eye contact. If so, rinse with water immediately and seek medical help if necessary.
A Material Safety Data Sheet (MSDS) includes product safety instructions and environmental protection instructions. Read and review the MSDS for appropriate health and safety warning before use.
WARRANTY

1. We provide guarantee for product quality under the valid law.
2. The quality of the product after reprocessing or repackaging by customer is not included in the guarantee.
3. Please feel free to contact us if you have any questions or issues about the products, we are ready to answer at any time.

COLOR & PACKAGING
Silver anti-tarnish is a light yellow paste with plastic drum packaging. The packaging specification is 25 kg/pcs.
IMPORTANT NOTICE REGARDING THIS INSTRUCTION BOOK
The product information and recommendations contained in this document are based on our experimental theory and data. Due to the particularity of the surface processing, further as the actual use of our products by others is beyond our control, NO GUARANTEE of any kind is made as to the effects of such use, and NO RESPONSIBLE for any consequences. Also, all the information in this document cannot be used as evidence of copyright infringement.
COMPANY PROFILE
Foshan Nanbowang Environmental Protection Technology Co., Ltd is a subsidiary of Foshan Renchang Technology Co., Ltd., with more than 10 years experience of environmental metal finishing, R & D and sales, and has won a national high-tech enterprise. Our company is mainly engaged in the research and development of environmentally friendly electroplating additives and is committed to the development of cyanide-free, phosphorus-free and ammonia-free metal finishing technologies.The mission is 'Innovation, Environmental, and Development'. The company's technical team has participated in a number of high-tech research and development, and has independently developed and obtained 3 nationally authorized invention patents and 3 copyrights.

At No.1, we offer high-caliber electroplating additives to improve the appearance and performance characteristics of your components, and have continually refined and evolved our electroplating additives to meet 21st century quality standards. We are agile, efficient, and committed to providing 100% customer satisfaction.