Description

Metam-Sodium Dihydrate is a solid, hydrated form of the widely used soil fumigant metam-sodium. This compound is valued for its role as a stable, transportable precursor that readily converts to the active methyl isothiocyanate (MITC) gas upon application, offering broad-spectrum control of soil-borne pests. It is a critical tool for agricultural professionals and researchers seeking effective pre-plant soil sterilization. Metam-Sodium Dihydrate CAS NO 6734-80-1 provides a convenient and controlled means to manage nematodes, weeds, fungi, and insects in high-value cropping systems.

Application

• Agricultural Soil Fumigation: Primary use for pre-plant sterilization in fields, greenhouses, and nurseries to control nematodes, soil-borne fungi, and weed seeds.
• Nematicide: Effective against a wide range of plant-parasitic nematodes that damage root systems.
• Herbicide: Controls germinating weed seeds and certain perennial weeds.
• Fungicide: Suppresses pathogenic fungi such as Verticillium, Fusarium, and Rhizoctonia.
• Insecticide: Manages soil-dwelling insect pests and their larvae.
• Research & Development: Used in agricultural research to study pest control efficacy and environmental fate.
• Commodity and Storage Facility Treatment: For soil and non-crop area treatment around storage sites.

Basic Information

Product Name	Metam-Sodium Dihydrate
CAS No.	6734-80-1
Molecular Formula	C2H4NNaS2 · 2H2O
Molecular Weight	169.18 g/mol (Anhydrous basis: 133.18)
Synonyms	Sodium N-methyldithiocarbamate dihydrate; Metham sodium dihydrate; Carbam; SMDC; Vapam; Sectagon; Soil Prep; Methylcarbamodithioic acid sodium salt dihydrate; Sodium methyldithiocarbamate dihydrate
EINECS	229-722-6 (for anhydrous form)

Quality Control

Our Metam-Sodium Dihydrate is manufactured under strict quality management systems to ensure batch-to-batch consistency and efficacy. The product undergoes rigorous analytical testing, including assay by titration and identification by FT-IR, to confirm identity and purity. Certificates of Analysis (COA) detailing all quality parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in original packaging or equivalent moisture-barrier containers to prevent caking and decomposition. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to pale yellow crystalline solid
Identification (IR)	Conforms to standard
Assay (Metam-Sodium)	Min. 95.0%
Water Content	20.0% - 23.0% (Theoretical for dihydrate: ~21.3%)
pH (1% Solution)	9.0 - 11.0
Insoluble Matter	Max. 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.