1,2-Ehanediylbiscarbamodithioicaciddisodiumsalt
NABAM
CAS: 142-59-6
Molecular Formula: C4H6N2Na2S4
1,2-Ehanediylbiscarbamodithioicaciddisodiumsalt - Names and Identifiers
| Name | NABAM |
| Synonyms | D-14 NABAM carbond 1,2-Ehanediylbiscarbamodithioicaciddisodiumsalt 1,2-ethanediylbis-carbamodithioicacidisodiumsalt 1,2-ethanediylbiscarbamodithioicaciddisodiumsalt Carbamodithioicacid,1,2-ethanediylbis-,disodiumsalt nabam (ISO) disodium ethylenebis(N,N'-dithiocarbamate) |
| CAS | 142-59-6 |
| EINECS | 205-547-0 |
1,2-Ehanediylbiscarbamodithioicaciddisodiumsalt - Physico-chemical Properties
| Molecular Formula | C4H6N2Na2S4 |
| Molar Mass | 256.34 |
| Melting Point | 76-80 °C |
| Water Solubility | ca. 200 g l-1 (room temperature) |
| Vapor Presure | Negligible |
| Merck | 13,6367 |
| Storage Condition | 0-6°C |
| Physical and Chemical Properties | Dysen sodium is a solid crystal containing six crystal water, m.p.230 ℃, the crystalline solid is unstable to heat, light and moisture, and decomposes flammable decomposition products before the melting point. Dysen sodium can dissolve 20% in water to form a yellow aqueous solution of about 20%, and hexahydrate is precipitated below 0 ℃. |
1,2-Ehanediylbiscarbamodithioicaciddisodiumsalt - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R43 - May cause sensitization by skin contact R37 - Irritating to the respiratory system R22 - Harmful if swallowed |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S60 - This material and its container must be disposed of as hazardous waste. S46 - If swallowed, seek medical advice immediately and show this container or label. S24/25 - Avoid contact with skin and eyes. S8 - Keep container dry. |
| UN IDs | UN3077 9/PG 3 |
| RTECS | FA6825000 |
| HS Code | 29302000 |
| Toxicity | LD50 orally in rats: 395 ±12 mg/kg (Smith) |
1,2-Ehanediylbiscarbamodithioicaciddisodiumsalt - References
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | sodium dithiocarbamate (disodium ethylene dithiocarbamate) is an important intermediate of fungicide, such as senzinc and Mancozeb. |
| production method | the preparation method is to add clean water in the reaction kettle, and add ethylenediamine under stirring, controlling the reaction temperature to be less than 35 ℃ to start the dropwise addition of carbon disulfide, maintaining the temperature of the reaction material at about 30 ℃ and stirring for 30min. When the medium pH of the reaction material is ≤ 9, 20% aqueous sodium hydroxide solution was added to the reaction vessel in batches, and the reaction temperature was controlled at about 35 ° C. When alkali was added. After each batch of sodium hydroxide was added, the pH of the reaction solution was controlled to be 9 or less, and then the next batch of sodium hydroxide was added. After all the sodium hydroxide was added, the reaction was continued for 1H, and the end point of the reaction was reached when there were no obvious oil droplets in the sample. The temperature was lowered to below 25 ℃, the stirring was stopped, and the mixture was allowed to stand, the unreacted carbon disulfide was separated, and the resulting pale yellow liquid was an aqueous solution of sodium Persen. There are one-step method and two-step method for the synthesis of sodium substituted, and the two-step method is adopted in China. This method is beneficial to control the formation of by-product sodium trithiocarbonate, so the product has good quality and high yield. |
| category | pesticide |
| toxicity grade | high toxicity |
| Acute toxicity | oral-rat LD50: 395 mg/kg; Oral-mouse LD50:380 mg/kg |
| flammability hazard characteristics | thermal decomposition of toxic nitric oxide and sulfur oxide gases |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored and transported separately from food raw materials |
| fire extinguishing agent | Sand, dry powder, foam |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 15:17:00
