421-500ML MG Chemicals, 421-500ML Datasheet - Page 2

• Manufacturer Part Number: 421-500ML
• Description: Solder, Fluxes & Accessories LIQUID TIN
• Manufacturer: MG Chemicals

Specifications of 421-500ML

• Product: Fluxes & Pastes
• Application: For tin plates copper circuits
• Boiling Point: 100 °C
• Chemical Component: Fluoboric Acid, Stannous Fluoroborate, Thiourea
• Ph: 1
• Solubility: 100%
• Specific Gravity: 1.2
• Weight: 17 oz
• Description/function: Liquid Tin
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Product Information Data Sheet
Liquid Tin
BATH OPERATION AND MAINTENANCE
Liquid Tin may be used until the activity drops to about 1 0%. Volume lost due to evapora-
tion should be replaced with D. I. water. Chemical replenishment of Liquid Tin solutions is
not recommended.
EQUIPMENT
Liquid Tin solutions should be used with equipment constructed of polypropylene, polyeth-
ylene, Teflon® similar materials. Do not use stainless steel. Heaters should be Teflon ® or
quartz.
WASTE TREATMENT
A spent solution should be diluted by at least 50 percent with tap water. Add 10 grams
per liter ferrous sulfate and mix until totally dissolved. Then adjust pH to 8.5 with dilute
sodium hydroxide. Allow the resulting precipitate to settle, and dispose of the supernatant
liquid and precipitate in accordance with all applicable federal, state and local regula-
tions.
SAFETY
Liquid Tin solutions are strongly acidic. Normal caution such as the use of safety goggles,
rubber gloves, etc., should be exercised during handling. Avoid breathing vapors. In the
event of eye contact, flush with copious amounts of water and CONTACT A PHYSICIAN.
Consult the Material Safety Data Sheet for safety, health and environmental information.
Liquid Tin can be operated until the percent activity reaches 10%.
(MG Cat. No. 421)