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Metam-sodium

Action / Use

ACTION: Fumigant.

USE: Soil disinfectant for soil fungi, nematodes, soil insects (wireworm, centipede). Controls germinating weeds. For use on mint, peanuts, potatoes, small grains, tobacco, and tree fruits.

FORMULATIONS: Soluble concentrate, aqueous solution.

Identification

COMMON NAME: Metam-sodium; Metam (ISO, BSI, Acid); SMDC; Carbam (JMAF).

CODE NUMBERS: 137-42-8 (CAS); 205-293-6 (EINECS).

Chemistry

COMPOSITION: Sodium N-methyldithiocarbamate.

PROPERTIES: White crystalline solid, with pungent rotten egg odor. Moderately soluble in ethanol. Insoluble in most organic solvents.

Metam-sodium

Registration

US: Homeowner uses cancelled. Agricultural labels are general use, except small area uses which are classified RUP.

Environmental Guidelines

HAZARDS: Fish: Toxic. Bee: Nontoxic. Bird: LD50 ca. 500 mg/kg (quail).

WATER SOLUBILITY: 722 g/l at 20°C.

Safety Guidelines

TOXICITY: (Rat): Oral LD50 1891 mg/kg (male); 1928 mg/kg (female). (Rabbit): Dermal LD50 >3074 mg/kg; slight skin, mild eye irritant.

HANDLING/STORAGE CAUTIONS: Stable in concentrated solution; unstable on dilution. Harmful if swallowed or inhaled, irritating to eyes, nose, throat, and skin. Avoid breathing vapors or spray mist. Do not get in eyes, on skin, or clothing. May be fatal if absorbed through skin. Keep children and pets out of treated areas until treatment is complete and pesticide has dissipated. Material must be handled outdoors and inhalation must be prevented.

SPILL CONTROL/CLEANUP: Use adequate ventilation and air-supplied respirators, impervious clothing, and safety goggles. For small spills, cover with absorbent to absorb the liquid; sweep into an open drum. Clean area with a stiff brush and a slurry made of water and powdered household cleanser; absorb and sweep into same open drum. Rinse with water, absorb, and add to drum. Close drum and dispose of properly. For large spills, dike spill to prevent contamination of local water sources. Siphon majority of liquid into drums for use or disposal, depending on circumstances. Clean area as directed for small spill.

PRODUCT/WASTE DISPOSAL: Spilled product is a hazardous waste and disposal must be at an approved toxic waste dump. Consult with Federal, State, or local disposal authorities for the actual method to be followed.

Emergency Guidelines

FLASHPOINT: Vapam*: >94°C/200°F (TCC).

FIRST AID: Eyes: contact physician immediately. Hold eyelids apart and immediately flush eyes with copious amounts of clear, cool running water for a minimum of 15 minutes (30 minutes if delay in getting medical attention). Skin: immediately flush all affected areas with large amounts of clean water for at least 15 minutes. Remove contaminated clothing. Do not attempt to neutralize with chemical agents. Wash before reusing. If skin irritation develops, contact physician. Ingestion: if conscious, dilute swallowed product by giving large amounts of clean water. Contact physician or hospital immediately for further instructions. Inhalation: remove from contaminated atmosphere. If breathing has ceased, clear airway and begin mouth-to-mouth respiration. If breathing is labored, give oxygen. Contact physician immediately.

EMERGENCY TELEPHONE: 800-523-0900 (Cerexagri, Inc.); Medical: 800-228-5635 Ext. 169 (H.I.S.); Transportation: 800-424-9300 (CHEMTREC).

Suppliers and Branded Products

BASIC PRODUCERS:

AMVAC Chemical Corp. (Metam 426*, Polefume*, Rid-A-Vec*, Turfcure*, Vapam*, Vapam* HL)

Aragonesas Agro, S.A. (Arapam*)

Buckman Laboratories (Busan* 1236)

General Chemical Co., Ltd.

Jiangsu Feixiang Chemical Co., Ltd.

Lainco, S.A. (Laisol*, Raisan-50*)

Multiplex Fertilizers Pvt. Ltd. (Nagtam*)

NovaSource Div. of Tessenderlo Kerley, Inc. (TKI) (Sectagon* 42)

Nufarm Ltd.

Quimica Lucava, S.A. de C.V.

Sinochem Hebei Corp.

Sunking Chemical Industrial Co., Ltd.

Taminco (Headquarters) (Nemasol*)

Taminco, Inc. (Metam CLR*, Nemasol*)

United Phosphorus Inc. (UPI) (Trimaton*)

Wangs Crop-Science Co., Ltd. (Meter*, Soldier*)

FORMULATORS' TRADE NAMES:

AGROLOGY S.A. (Sodam Blue*)

BASF Corporation (Metam-Fluid BASF*)

Hektas Ticaret T.A.S. (Hekpam*)

Koruma Tarim A.S. (Korpam*)

TRAGUSA (Tratamientos Guadalquivir S.L.) (Solasan*, Tragusan*)

DISCONTINUED NAMES:

A7*

Maposol*

Metam S.A.U.*

Metildiene K*

Pole Life*

Sistan*

Soil-Prep*

Ucetam*