General Description
Light yellow or cream-colored crystals or a brown crystalline solid. As a reagent in the separation of copper and iron.
Reactivity Profile
CUPFERRON(135-20-6) may be sensitive to prolonged exposure to air. Incompatible with strong oxidizing agents, strong acids and strong bases. Forms unstable solutions with thorium, titanium and zirconium salts.
Air & Water Reactions
Hygroscopic. Soluble in water.
Potential Exposure
Cupferron is used to separate tin from zinc, and copper and iron from other metals in the laboratory. Cupferron also finds application as a quantitative reagent for vanadates and titanium; and for the colorimetric determination of aluminum. The potential for exposure appears to be greatest for those engaged in analytical or research studies involving use of the chemical. Workers may also be exposed to the compound during manufacturing processes.
Fire Hazard
Flash point data for this chemical are not available; however, CUPFERRON is probably combustible.
First aid
Move victim to fresh air. Call 911 or emergency Medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.
Shipping
UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
Incompatibilities
Forms unstable and possibly explosive compounds with thorium salts; titanium, zirconium.
Description
Cupferron is a creamy-white crystalline compound. Molecular weight=156.21; Freezing/Melting point=163℃. Hazard Identification (based on NFPA-704M Rating System): Health 2, Flammability 2, Reactivity 1.Soluble in water
Carcinogenicity
Cupferron is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals.
storage
Color Code—Green: General storage may be used.Color Code—Blue: Health Hazard/Poison: Store in a securepoison location. Prior to working with cupferron you shouldbe trained on its proper handling and storage. A regulated,marked area should be established where this chemical ishandled, used, or stored in compliance with OSHAStandard 1910.1045. Cupferron should be stored in a refrigerator or in a cool dry place and protected from exposure tomoisture.
Purification Methods
Recrystallise it twice from EtOH after treatment with Norite and finally once with EtOH. The crystals are washed with diethyl ether and air dried, then stored in the dark over solid ammonium carbonate. A standard solution (ca 0.05M prepared in air-free H2O) is prepared daily from this material for analytical work and is essentially 100% pure. [Olsen & Elving Anal Chem 26 1747 1954.] It can also be washed with Et2O, dried and stored as stated. In a sealed, dark container it can be stored for at least 12 months without deterioration. 260nm (CHCl3). max [Marvel Org Synth Coll Vol I 177 1941, Elving & Olson J Am Chem Soc 78 4206 1956, Beilstein 16 IV 891.] Possible CARCINOGEN.
