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iodomethane (Ref: TM 425)
** monoiodomethane ** MeI ** methyl iodide ** Translations

Environmental Fate - Ecotoxicology - Human Health - A to Z Index - Home

GENERAL INFORMATION Click here for an explantaion of the general chemical status information
for iodomethane

Description: A largely obsolete pre-plant fumigant biocide used to control a wide variety of pests

Example pests controlled: Insects, Plant parasitic nematodes, Soil borne pathogens, Weed seeds.

Example applications: Tomatoes; Peppers; Nut crops; Strawberries

Availability status: Current

Introduction & key dates: 2004, Japan

EC Regulation 1107/2009 (repealing 91/414):
Status Not listed
Dossier rapporteur/co-rapporteur Not applicable
Date inclusion expires Not applicable

Approved for use () or known to be used () in the following European countries: Click to access a note on the approvals information on this site

AT

BE

BG

CY

CZ

DE

DK

EE

EL

ES

FI

FR

HR

HU

IE

IT

LT

LU

LV

MT

NL

PL

PT

RO

SE

SI

SK

UK

Also used in: [2012 - Withdrawn from the US market]

General status: Click here for further information on the general chemical status information used on this site
Pesticide type Soil sterilant, Insecticide, Nematicide
Substance group Alkyl iodide
Minimum active substance purity 100% by weight
Known relevant impurities -
Substance origin Synthetic
Mode of action Fumigant action thought to be via the nucleophilic displacement (SN2) reaction in various amino acids and peptides within target organisms
CAS RN 74-88-4
EC number 200-819-5
CIPAC number -
US EPA chemical code 000011
Chiral molecule No
Chemical formula CH3I
SMILES IC
International Chemical Identifier key (InChIKey) INQOMBQAUSQDDS-UHFFFAOYSA-N
International Chemical Identifier (InChI) InChI=1S/CH3I/c1-2/h1H3
Structure diagram/image available? Yes
Molecular mass (g mol-1) 141.94
PIN (Preferred Identification Name) iodomethane
IUPAC name methyl iodide
CAS name iodomethane
Other status information -
Herbicide Resistance Classification (HRAC) Not applicable
Herbicide Resistance Classification (WSSA) Not applicable
Insecticide Resistance Classification (IRAC) Not known
Fungicide Resistance Classification (FRAC) Not known
Examples of recorded resistance -
Physical state Courless transparent liquid
Related substances & organisms -

Formulations:
Property Click here for information on the general product and branding information used on this site Value
Example manufacturers & suppliers of products using this active now or historically
  • Arysta LifeScience Corp
Example products using this active
  • Midas
UK LERAP status No UK approval for use or outside scope
Formulation and application details -


ENVIRONMENTAL FATE

for iodomethane

Property Click here for information on the parameters used to describe environmental fate on this site Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with fate data Interpretation Click here for information on the way in which we interpret environmental fate data
Solubility - In water at 20oC (mg l-1) 14200 F3 High
Solubility - In organic solvents at 20oC (mg l-1) - - -
Melting point (oC) -66.5 F3 -
Boiling point (oC) 42 L3 -
Degradation point (oC) - - -
Flashpoint (oC) Not expected to self ignite; Not highly flammable CA3 -
Octanol-water partition coefficient at pH 7, 20oC P 3.98 X 1001 Calculated -
Log P 1.6 F3 Low
Bulk density (g ml-1)/Specific gravity 2.8 F3 -
Dissociation constant (pKa) at 25oC - - -
Note:
Vapour pressure at 25oC (mPa) 166100000 Q3 Volatile
Henry's law constant at 25oC (Pa m3 mol-1) - - -
Henry's law constant at 20oC (dimensionless) 6.82 X 10-01 Calculated Volatile
GUS leaching potential index Click here for a note on the limitations of the GUS index - - -
SCI-GROW groundwater index (μg l-1) for a 1 kg ha-1 or 1 l ha-1 application rate Click here for a note on the limitations of the SCI-GROW index Value - - -
Note -
Potential for particle bound transport index Click here for a note on the limitations of the potential for particle bound transport index - - -
Maximum UV-vis absorption L mol-1 cm-1 - - -
Surface tension (mN m-1) - - -

Degradation:
Property Click here for information on the parameters used to describe substance degradation Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with degradation data Interpretation Click here for information on the way in which we interpret substance degradation data
Soil degradation (days) (aerobic) DT50 (typical) - - -
DT50 (lab at 20oC) - - -
DT50 (field) - - -
DT90 (lab at 20oC) - - -
DT90 (field) - - -
Note: -
Plant matrix DT50 (days) Value - - -
Note -
Aqueous photolysis DT50 (days) at pH 7 Value - - -
Note -
Aqueous hydrolysis DT50 (days) at 20oC and pH 7 Value - - -
Note -
Water-sediment DT50 (days) - - -
Water phase only DT50 (days) - - -

Soil adsorption and mobility:
Property Click here for information on the parameters used to describe substance adsorption and mobility Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with adsorption and mobility data Interpretation Click here for information on the way in which we interpret substance adsorption and mobility
Linear Kd - Q2 Moderately mobile
Koc 155
Notes and range Estimated
Freundlich Kf - - -
Kfoc -
1/n -
Notes and range -
pH sensitivity -


ECOTOXICOLOGY

for iodomethane

Property Click here for information on the parameters used to describe substance ecotoxicology Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with ecotoxicology data Interpretation Click here for information on the way in which we interpret substance ecotoxicology
Bio-concentration factor BCF (l kg-1) Low risk Q3 Based on LogP < 3 Low potential
CT50 (days) - -
Mammals - Acute oral LD50 (mg kg-1) > 79.8 F3 Rat High
Mammals - Short term dietary NOEL (mg kg-1) - - -
(ppm diet) - -
Birds - Acute LD50 (mg kg-1) > 40.0 F4 Colinus viriginianus High
Birds - Short term dietary (LC50/LD50) - - -
Fish - Acute 96 hour LC50 (mg l-1) > 1.12 F4 Oncorhynchus mykiss Moderate
Fish - Chronic 21 day NOEC (mg l-1) - - -
Aquatic invertebrates - Acute 48 hour EC50 (mg l-1) - - -
Aquatic invertebrates - Chronic 21 day NOEC (mg l-1) - - -
Aquatic crustaceans - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Acute 96 hour LC50 (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, static, water (mg l-1) - - -
Sediment dwelling organisms - Chronic 28 day NOEC, sediment (mg kg-1) - - -
Aquatic plants - Acute 7 day EC50, biomass (mg l-1) - - -
Non-target plants - - -
- - -
Algae - Acute 72 hour EC50, growth (mg l-1) - - -
Algae - Chronic 96 hour NOEC, growth (mg l-1) - - -
Honeybees Contact acute 48 hour LD50 (μg bee-1) - - -
Oral acute 48 hour LD50 (μg bee-1) - - -
Unknown mode acute 48 hour LD50 (μg bee-1) - - -
Earthworms - Acute 14 day LC50 (mg kg-1) - - -
Earthworms - Chronic 14 day NOEC, reproduction (mg kg-1) - - -
Other soil macro-organisms - e.g. Collembola LR50 / EC50 / NOEC / % Effect - - -
Other arthropod (1) LR50 g ha-1 - - -
% Effect - - -
Other arthropod (2) LR50 g ha-1 - - -
% Effect - - -
Soil micro-organisms - - -
Mesocosm study data NOEAEC mg l-1 - - -
NOEAEC mg l-1 - - -


HUMAN HEALTH AND PROTECTION

for iodomethane

General:
Property Click here for information on the parameters used to describe human health and protection issues Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with human health and protection data Interpretation Click here for information on the way in which we interpret human health and protection data
Threshold of Toxicological Concern (Cramer Class) Click here for a note on the limitations of the Cramer class High (class III) - -
Mammals - Acute oral LD50 (mg kg-1) > 79.8 F3 Rat High
Mammals - Dermal LD50 (mg kg-1 body weight) > 2000 F3 Rat -
Mammals - Inhalation LC50 (mg l-1) 4.0 F3 Rat -
Other Mammal toxicity endpoints - -
ADI - Acceptable Daily Intake (mg kg-1bw day-1) - - -
ARfD - Acute Reference Dose (mg kg-1bw day-1) - - -
AOEL - Acceptable Operator Exposure Level - Systemic (mg kg-1bw day-1) - - -
Dermal penetration studies (%) - - -
Dangerous Substances Directive 76/464 - - -
Exposure Limits [LT TLV: 10 mg/l air] Q3 -
Exposure Routes Public -
Occupational May be absorbed by the skin
European MRLs Click here for the EU MRL pesticide database
Drinking Water MAC (μg l-1) - - -

Health issues:
Carcinogen Mutagen Endocrine disrupter Reproduction / development effects Cholinesterase inhibitor Neurotoxicant

-

-

-

Respiratory tract irritant Skin irritant Skin sensitiser Eye irritant Phototoxicant

-

-

General human health issues Toxic
May damage corneal
Exposure may cause skin rash, running nose, headache and irritation of the mucous membrane
USEPA - possible human carcinogen at high doses

: Yes, known to cause a problem
: No, known not to cause a problem
: Possibly, status not identified
- : No data found

Handling issues:
Property Click here for information on the parameters used to describe substance handling issues Value Source/Quality Score/Other Information Click here for information on the primary data sources used to populate this database with data on handling issues Interpretation Click here for information on the way in which we interpret data on handling issues
General Click here for a description of the International Maritime Dangerous Goods (IMDG) codes Corrosive
Methyl iodide gases may be generated
CLP classification 2013 -
EC Risk Classification Click here to view information omn the EU risk phrases Carcinogen category 3: R40
T - Toxic: R23, R25
Xn - Harmful: R21
Xi - Irritant: R37, R38
EC Safety Classification Click here to view information omn the EU safety phrases S36, S37, S38, S45
WHO Classification NL - Not listed
US EPA Classification (formulation) - -
UN Number -
Waste disposal & packaging Click here for a description of UN packaging marks -


TRANSLATIONS

for iodomethane

Language Name
English iodomethane
French -
German -
Danish -
Italian -
Spanish -
Greek -
Slovenian -
Polish -
Swedish -
Hungarian -
Dutch -

Record last updated: Monday 17 October 2016
Contact: aeru@herts.ac.uk