# NIOSH Pocket Guide to Chemical Hazards
Rosin core solder, pyrolysis products (as formaldehyde) | CAS
| RTECS
Synonyms & Trade Names Rosin flux pyrolysis products, Rosin core soldering flux pyrolysis products | DOT ID & Guide
Exposure Limits | NIOSH REL*: TWA 0.1 mg/m3 [*Note: "Ca" in the presence of formaldehyde, acetaldehyde, or malonaldehyde. See Appendices A & C (Aldehydes).]
OSHA PEL†: none
IDLH N.D. | Conversion
Physical Description Pyrolysis products of rosin core solder include acetone, aliphatic aldehydes, methyl alcohol, methane, ethane, various abietic acids (the major components of rosin), CO & CO2.
Properties vary depending upon the specific rosin core solder being used. |  |  |
Incompatibilities & Reactivities Varies
Measurement Methods NIOSH 2541, 3500
Personal Protection & Sanitation Skin: No recommendation Eyes: No recommendation Wash skin: No recommendation Remove: No recommendation Change: No recommendation | First Aid (See procedures) Eye: Irrigate immediately Breathing: Respiratory support
Respirator Recommendations To be added later In the presence of Formaldeyde, Acetaldehyde, or Malonaldehyde: NIOSH At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation
Symptoms Irritation eyes, nose, throat, upper respiratory system
Target Organs Eyes, respiratory system Cancer Site [nasal cancer; thyroid gland tumors in animals (in presence of Formaldehyde, Acetaldehyde, or Malonaldehyde)]
See also: INTRODUCTION