Naled
Structural formula | ||||||||||||||||
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Structural formula without stereochemistry | ||||||||||||||||
General | ||||||||||||||||
Surname | Naled | |||||||||||||||
other names |
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Molecular formula | C 4 H 7 Br 2 Cl 2 O 4 P | |||||||||||||||
Brief description |
colorless to white solid with a faint odor |
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properties | ||||||||||||||||
Molar mass | 380.78 g mol −1 | |||||||||||||||
Physical state |
firmly |
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density |
1.96 g cm −3 |
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Melting point |
26.5-27.5 ° C |
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boiling point |
110 ° C at 0.66 mbar |
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Vapor pressure |
2 · 10 −4 mmHg (20 ° C) |
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solubility |
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safety instructions | ||||||||||||||||
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MAK |
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Toxicological data | ||||||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Naled is a 1: 1 mixture of two stereoisomeric chemical compounds from the group of organic phosphoric acid esters . It is used as an insecticide .
properties
Naled is a colorless to white solid with a faint odor that melts even when the temperature rises slightly and is usually marketed as a low-dose spray or a high-dose solution.
use
Naled is an insecticide from the group of phosphoric acid esters, which was first registered for this purpose in 1959 under the trade name Dibrom. About a million pounds are used in the US each year. The racemate is used . Its toxic effect is based on the inhibition of cholinesterase activity . Due to its short half-life of less than a day, it is considered to be easily degradable. In the presence of water or sunlight, it rapidly decomposes into dichlorvos .
Admission
No plant protection products containing this active ingredient are permitted in the EU or Switzerland .
Web links
- Naled - Rationale for Naled in TRGS 900 (Federal Institute for Occupational Safety and Health) (PDF; 280 kB).
- US EPA: Naled for Mosquito Control .
- Frequently Asked Questions about Naled (PDF; 28 kB).
Individual evidence
- ↑ a b c d e f g h i Entry on Naled in the GESTIS substance database of the IFA , accessed on February 8, 2018(JavaScript required) .
- ↑ entry to naled in ChemIDplus database of the United States National Library of Medicine (NLM), accessed on 11 June 2017th
- ↑ WHO / FAO Data Sheet on Pesticides (PDS) for Naled ( Memento from July 2, 2014 in the Internet Archive )
- ↑ Entry on Naled in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
- ↑ Swiss Accident Insurance Fund (Suva): Limit values - current MAK and BAT values (search for 300-76-5 or Naled ), accessed on November 2, 2015.
- ↑ Caroline Cox: Insecticide Factsheet - Naled (Dibroma) . Journal of Pesticide Reform Fall 2002: 22 (3), 16-21. ( Memento of July 2, 2010 in the Internet Archive ) (PDF; 93 kB).
- ↑ Data sheet Naled at alanwood.net.
- ↑ Data sheet Naled in Extoxnet.
- ^ Directorate-General for Health and Food Safety of the European Commission: Entry on Naled in the EU pesticide database ; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 26, 2016.