Metam-sodium

Action/Use:

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.

Identification

Common Name(s): Metam (ISO, BSI, Acid); ; Carbam (JMAF)

Chemistry

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

Environmental Guidelines

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

Water Solubility: 722 g/l at 20�C

Safety Guidelines

Signal Word: DANGER

Toxicity Class: I

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. Small Spills: Cover with absorbent and sweet into open drum. Clean area with stiff brush and slurry made of water and powdered household cleanser, absorb and sweep into same drum. Rinse with water, absorb, add to drum. Close drum and dispose of properly. 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

Protective Clothing: Protective eyewear. Chemical-resistant apron when cleaning equipment, mixing, or loading. Chemical-resistant headgear for overhead exposure. Approved respirator.

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, Inc. (Busan* 1236)

General Chemical Co., Ltd.

Jiangsu Feixiang Chemical Co., Ltd.

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

Multiplex Fertilizers Pvt. Ltd. (Nagtam*)

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

Sinochem Hebei Corp.

Sunking Chemical Industrial Co., Ltd.