Uses And Manufacturing Methods Of Formex

Sodium Dimethyl Dithiocarbamate, also known as Dibamate, its chemical name is sodium dimethyl dithiocarbamate (English name sodium dimethyl dithiocarbamate), also known as N,N-dimethylcarbamate sodium (N,N-Dimethyldithiocanbamate sodium salt ), the molecular formula containing two crystal waters is C3H6NS2Na·2H2O.

Sodium furbane pure product is a scaly white crystal with a slight ammonia smell and is very soluble in water. The crystal obtained by crystallization method contains 2.5 molecules of crystal water. It loses 2 molecules of crystal water when heated to 115°C, and completely dissolves at 130°C. Loss of water of crystallization. The industrial intermediate is a 15% aqueous solution, which is a light yellow or grass green transparent liquid, which is harmful to the human body if swallowed, and can irritate the eyes if contacted. Mainly used as fungicide, rubber accelerator, etc. It is used as a terminator for emulsion polystyrene butadiene rubber, nitrile rubber, styrene butadiene latex and nitrile latex. Used as industrial fungicides, metal precipitants, vulcanization accelerators for rubber products and agricultural insecticides. It is also an intermediate of fungicides thiram, thiram iron, thiram ammonium, thiram zinc, and thiram nickel.

It is obtained by addition of dimethylamine and carbon disulfide to obtain dimethylaminodithioformic acid, and then salted with sodium hydroxide solution. Its preparation method is to add water into the reaction kettle, put in lye and 40% dimethylamine solution under stirring, cool to about 10°C and add carbon disulfide dropwise, control the dropwise reaction temperature not to exceed 30°C, after the dropwise addition of carbon disulfide, Continue to react for 1 to 2 hours, and then let it stand to separate the insoluble residue to obtain sodium thioformate solution.