1.Identification
1.1 GHS Product identifier
| Product name | methidathion |
|---|
1.2 Other means of identification
| Product number | - |
|---|---|
| Other names | faat |
1.3 Recommended use of the chemical and restrictions on use
| Identified uses | For industry use only. Insecticide |
|---|---|
| Uses advised against | no data available |
1.4 Supplier's details
| Company | MOLBASE (Shanghai) Biotechnology Co., Ltd. |
|---|---|
| Address | Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road, Xuhui District, Shanghai, China |
| Telephone | +86(21)64956998 |
| Fax | +86(21)54365166 |
1.5 Emergency phone number
| Emergency phone number | +86-400-6021-666 |
|---|---|
| Service hours | Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours). |
2.Hazard identification
2.1 Classification of the substance or mixture
Acute toxicity - Oral, Category 2
Acute toxicity - Dermal, Category 4
Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1
2.2 GHS label elements, including precautionary statements
| Pictogram(s) |   |
|---|---|
| Signal word | Danger |
| Hazard statement(s) | H300 Fatal if swallowed H312 Harmful in contact with skin H410 Very toxic to aquatic life with long lasting effects |
| Precautionary statement(s) | |
| Prevention | P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection. P273 Avoid release to the environment. |
| Response | P301+P310 IF SWALLOWED: Immediately call a POISON CENTER/doctor/… P321 Specific treatment (see ... on this label). P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/... P312 Call a POISON CENTER/doctor/…if you feel unwell. P362+P364 Take off contaminated clothing and wash it before reuse. P391 Collect spillage. |
| Storage | P405 Store locked up. |
| Disposal | P501 Dispose of contents/container to ... |
2.3 Other hazards which do not result in classification
none
3.Composition/information on ingredients
3.1 Substances
| Chemical name | Common names and synonyms | CAS number | EC number | Concentration |
|---|---|---|---|---|
| methidathion | methidathion | 950-37-8 | none | 100% |
4.First-aid measures
4.1 Description of necessary first-aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
Fresh air, rest. Artificial respiration may be needed. Refer immediately for medical attention.
In case of skin contact
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer immediately for medical attention. Wear protective gloves when administering first aid.
In case of eye contact
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
If swallowed
Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer immediately for medical attention.
4.2 Most important symptoms/effects, acute and delayed
This material is poisonous to humans. Its toxic effects are by action on the nervous system. Human volunteers ingesting 0.11 mg/kg/day for 6 weeks had no clinical effects. (EPA, 1998)
4.3 Indication of immediate medical attention and special treatment needed, if necessary
Airway protection. Insure that a clear airway exists. Intubate the patients and aspirate the secretions with a large-bore suction device if necessary. Administer oxygen by mechanically assisted pulmonary ventilation if respiration is depressed. Improve tissue oxygenation as much as possible before administering atropine, so as to minimize the risk of ventricular fibrillation. In severe poisonings, it may be necessary to support pulmonary ventilation mechanically for several days. /Organophosphate pesticides/
5.Fire-fighting measures
5.1 Extinguishing media
Suitable extinguishing media
Self contained breathing apparatus with a full facepiece operated in pressure demand, or other positive pressure mode /should be used in firefighting/. /Parathion/
5.2 Specific hazards arising from the chemical
(Non-Specific -- Organophosphorus Pesticide, n.o.s.) Container may explode in heat of fire. Fire and runoff from fire control water may produce irritating or poisonous gases. Stable in neutral or weak acid solution. Hydrolyzed by alkali. (EPA, 1998)
5.3 Special protective actions for fire-fighters
Wear self-contained breathing apparatus for firefighting if necessary.
6.Accidental release measures
6.1 Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.
6.2 Environmental precautions
Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into covered sealable containers. Carefully collect remainder. Then store and dispose of according to local regulations.
6.3 Methods and materials for containment and cleaning up
VENTILATE AREA OF SPILL OR LEAK. COLLECT FOR RECLAMATION, OR ABSORB IN VERMICULITE, DRY SAND, EARTH, OR A SIMILAR MATERIAL. /PARATHION/
7.Handling and storage
7.1 Precautions for safe handling
Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilities
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Well closed. Store in an area without drain or sewer access.Store in dry, well-ventilated, secure area out of reach of children and animals.
8.Exposure controls/personal protection
8.1 Control parameters
Occupational Exposure limit values
no data available
Biological limit values
no data available
8.2 Appropriate engineering controls
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.
8.3 Individual protection measures, such as personal protective equipment (PPE)
Eye/face protection
Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.
Respiratory protection
Wear dust mask when handling large quantities.
Thermal hazards
no data available
9.Physical and chemical properties
| Physical state | Colourless crystals |
|---|---|
| Colour | Colorless crystals |
| Odour | Organophosphate odor |
| Melting point/ freezing point | 39-40ºC |
| Boiling point or initial boiling point and boiling range | 347.7ºC at 760 mmHg |
| Flammability | Combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire. |
| Lower and upper explosion limit / flammability limit | no data available |
| Flash point | 164.1ºC |
| Auto-ignition temperature | no data available |
| Decomposition temperature | no data available |
| pH | no data available |
| Kinematic viscosity | no data available |
| Solubility | In water:0.024 g/100 mL |
| Partition coefficient n-octanol/water (log value) | log Kow = 2.20 |
| Vapour pressure | 1e-06 mm Hg at 20°C (EPA, 1998) |
| Density and/or relative density | 1.6 g/cm3 |
| Relative vapour density | no data available |
| Particle characteristics | no data available |
10.Stability and reactivity
10.1 Reactivity
no data available
10.2 Chemical stability
Relatively stable to hydrolysis in neutral, or slightly acidic media, less stable in more acidic (pH 1), or in alkaline media (pH 13, 50% loss in 30 min @ 25°C).
10.3 Possibility of hazardous reactions
Organophosphates, such as METHIDATHION, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
10.4 Conditions to avoid
no data available
10.5 Incompatible materials
no data available
10.6 Hazardous decomposition products
When heated to decomposition it emits very toxic fumes of /oxides of nitrogen, oxides of phosphorous and oxides of sulfur/.
11.Toxicological information
Acute toxicity
- Oral: LD50 Guinea pig oral 25 mg/kg
- Inhalation: LC50 Rat inhalation 3.6 mg/L (4 hr) /Technical/
- Dermal: no data available
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
Cancer Classification: Group C Possible Human Carcinogen
Reproductive toxicity
no data available
STOT-single exposure
no data available
STOT-repeated exposure
no data available
Aspiration hazard
no data available
12.Ecological information
12.1 Toxicity
- Toxicity to fish: LC50; Species: Lepomis macrochirus (Bluegill); Conditions: freshwater, static; Concentration: 2.2 ug/L for 96 hr (95% confidence interval: 0.9-5.1 ug/L) /95% purity
- Toxicity to daphnia and other aquatic invertebrates: EC50; Species: Daphnia magna (Water Flea) 1st instar larvae; Conditions: freshwater, static; Concentration: 6.4 ug/L for 48 hr (95% confidence interval: 5.1-8.1 ug/L); Effect: intoxication, immobilization
- Toxicity to algae: EC50; Species: Anabaena flosaquae (Blue-Green Algae); Conditions: freshwater, static, 24°C; Concentration: 67521 ug/L for 96 hr; Effect: decreased population biomass /96.1% purity technical product
- Toxicity to microorganisms: no data available
12.2 Persistence and degradability
AEROBIC: A half-life in aerobic soil of 11 days has been reported(1). Methidathion, at a concentration of 4 mg, containing chain labeled C14 was added to 400 cu cm of 4 different soils and incubated at 25°C(2). After 16 weeks, 7% C14, 8% C14, 1% C14, and 2% C14 remained in Puyallop sandy loam, Sultan silt loam, Chehalis clay loam, and organic soil, respectively(2). After 16 weeks, 49-60% methidathion remained in fumigated controls with <3% of the radioactivity was expired as CO2(2). An avg half-life of 12.42 days was measured for 1-50 ug/L methidathion added to filtered water collected during May-April, 1997 from the Limon River, between Mara and Paez, State of Zula, Argentina(3).
12.3 Bioaccumulative potential
Whole-body BCFs of 3.0, 2.2, 1.5, and 2.6 were measured using carp (Cyprino carpio L.) after 24, 72, 120, and 196 hr exposure to 2.6 ug/L methidathion, respectively(1). Average BCFs after 168 hr exposures were 6.4, 5.6, 4.6, 3.6, and 5.5 for guppy (female) (Lebistes reticulatus), guppy (male), killifish (Oryzias latipes), goldfish (Carassius aurapus), and cloud mountain fish (Tanichthys albonubes), respectively(2). According to a classification scheme(3), these BCF values suggest bioconcentration in aquatic organisms is low(SRC). Tests using the Mediterranean mussel, Mytillus galloprovincialis, resulted in a BCF value of 193(4).
12.4 Mobility in soil
Experimental Koc values of 34(1) and 761(2) in soil have been reported. According to a classification scheme(3), these Koc values suggest that methidathion is expected to have very high to low mobility in soil(SRC). Experimental Koc values of 7 and 56 were determined in 2 different pond sediments at pH 5.9 and 6.5, respectively(4). Methidathion was shown to have no to moderate leaching potential using agricultural soils characterized by high organic content from the Canary Island of Tenerife(5).
12.5 Other adverse effects
no data available
13.Disposal considerations
13.1 Disposal methods
Product
The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Contaminated packaging
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
14.Transport information
14.1 UN Number
| ADR/RID: UN2811 | IMDG: UN2811 | IATA: UN2811 |
14.2 UN Proper Shipping Name
| ADR/RID: TOXIC SOLID, ORGANIC, N.O.S. |
| IMDG: TOXIC SOLID, ORGANIC, N.O.S. |
| IATA: TOXIC SOLID, ORGANIC, N.O.S. |
14.3 Transport hazard class(es)
| ADR/RID: 6.1(a) | IMDG: 6.1(a) | IATA: 6.1(a) |
14.4 Packing group, if applicable
| ADR/RID: II | IMDG: II | IATA: II |
14.5 Environmental hazards
| ADR/RID: yes | IMDG: yes | IATA: yes |
14.6 Special precautions for user
no data available
14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code
no data available
15.Regulatory information
15.1 Safety, health and environmental regulations specific for the product in question
| Chemical name | Common names and synonyms | CAS number | EC number |
|---|---|---|---|
| methidathion | methidathion | 950-37-8 | none |
| European Inventory of Existing Commercial Chemical Substances (EINECS) | Listed. | ||
| EC Inventory | Listed. | ||
| United States Toxic Substances Control Act (TSCA) Inventory | Not Listed. | ||
| China Catalog of Hazardous chemicals 2015 | Listed. | ||
| New Zealand Inventory of Chemicals (NZIoC) | Not Listed. | ||
| Philippines Inventory of Chemicals and Chemical Substances (PICCS) | Not Listed. | ||
| Vietnam National Chemical Inventory | Listed. | ||
| Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) | Not Listed. | ||
16.Other information
Information on revision
| Creation Date | Aug 17, 2017 |
|---|---|
| Revision Date | Aug 17, 2017 |
Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/
