1.Weld-On Soldering Flux Paste
2. IPS Corporation
3.Zinc Chloride (LD50)350 mg/kg (oral rat) (LC50)LCLo: 1960 mg/m3 /10 mins (rat)
Ammonium Chloride (LD50)165 0mg/kg (oral rat) (LC50)Not Available
Petrolatum (LD50)Oral-Rat N/D (LC50)Inhalation-Rat:N/D
4. Hazard statement: H302 - Harmful if swallowed.
Precautionary Statement: P102 - Keep out of reach of children.
5. None Known.
6.Reissue date / reason for reissue: 3/6/2015 / Updated GHS Standard Format
7. Solder flux is used to prevent oxidization between the base and filler materials when soldering, let's say two pieces of copper together. Because of the high temperatures, various oxides of copper would form and prevent a strong connection, solder flux prevents this.