Phorate SDS

Acute toxicity - Category 2, Oral

Acute toxicity - Category 1, Dermal

Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1

H300 Fatal if swallowed

H310 Fatal in contact with skin

H410 Very toxic to aquatic life with long lasting effects

P264 Wash ... thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

P262 Do not get in eyes, on skin, or on clothing.

P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...

P273 Avoid release to the environment.

P301+P316 IF SWALLOWED: Get emergency medical help immediately.

P321 Specific treatment (see ... on this label).

P330 Rinse mouth.

P302+P352 IF ON SKIN: Wash with plenty of water/...

P316 Get emergency medical help immediately.

P361+P364 Take off immediately all contaminated clothing and wash it before reuse.

P391 Collect spillage.

P405 Store locked up.

P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

no data available

Fresh air, rest. Refer for medical attention.

Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention .

This material is one of the more toxic organophosphorus insecticides. It is a cholinesterase inhibitor that acts on the nervous system, and produces toxicity similar to Parathion. The probable oral lethal dose for humans is less than 5 mg/kg, i.e. a taste (less than 7 drops) for a 70 kg (150 lb.) person. (EPA, 1998)

Airway protection. Ensure 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

If material on fire or involved in fire: Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use "alcohol" foam, dry chemical or carbon dioxide. Organophosphorus pesticides, liquid, flammable, toxic; Organophosphorus pesticides, liquid, toxic

Shock can shatter containers, releasing the contents. When heated to decomposition, toxic fumes of sulfur oxides, phosphorus oxides, and nitrogen oxides are emitted. Hydrolyzed in water and alkalies. (EPA, 1998)

Use water spray, foam, powder, carbon dioxide.

Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.

Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment. Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus.

Environmental considerations: Air spill: Apply water spray or mist to knock down vapors. Organophosphorus pesticides, liquid, flammable, toxic; Organophosphorus pesticides, liquid, toxic; Organophosphorus pesticides, solid, toxic

NO open flames. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Keep in a well-ventilated room. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Keep in a well-ventilated room.

TLV: 0.05 mg/m3, as TWA; (skin); A4 (not classifiable as a human carcinogen); BEI issued

no data available

Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.

Wear safety goggles, face shield or eye protection in combination with breathing protection.

Protective gloves. Protective clothing.

Use ventilation, local exhaust or breathing protection.

no data available

Decomposes under the influence of heat. This produces fumes of phosphorus oxides and sulfur oxides.

Stable at room temp.

Organothiophosphates, such as PHORATE, 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.

no data available

Incompatible with alkaline compounds and with water-containing preparations.

When heated to decomposition it emits toxic fumes of /phosphorous and sulfur oxides/.

no data available

no data available

no data available

no data available

Cancer Classification: Group E Evidence of Non-carcinogenicity for Humans

no data available

The substance may cause effects on the central nervous system. This may result in cholinesterase inhibition. Exposure could cause death. Medical observation is indicated. The effects may be delayed.

Cholinesterase inhibition. Cumulative effects are possible. See Acute Hazards/Symptoms.

A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C; on spraying or dispersing, however, much faster.

Degradation half-lives of phorate in various soils were: sandy loam, 7 days; silty clay loam, 9 days; and clay loam, 8 days(1). One-half of the applied phorate dosage to silt loam soil could no longer be detected after 6 days when applied to the soil surface and after 30 days when mixed with the upper 4-5 inch soil layer(2). In silt loam soil, phorate persisted beyond 16 weeks at 25 deg C(3). The half-life of phorate in clay loam soil when applied as a granular formulation ranged from 5 to 10 days(4). In a field study, 67 and 70% of phorate was lost within 28 days from silty clay loam soil(5). Bioassays indicate the half-life of phorate, when applied to the top 4 inches of sandy loam soil at a concentration of 10 ppm, is about 68 days(6). In flooded agricultural loam soil, 1.7, 6.0, and 9.9% of the applied C14-phorate had been evolved as C14-CO2 after 3, 7, and 14 days incubation, respectively(7). In non-flooded soils, 1.3, 2.3, and 3.3% of the applied C14-phorate had been evolved as C14-CO2 after identical incubation periods(7). Half-lives of 1.2 days and 1.1 days were determined for phorate in active sediment and water, respectively(8). In a 1 week laboratory assay, phorate mineralization was not significantly greater in soils with a history of phorate use than in soils with no history of phorate use(9). The microbial degradation of phorate in loam soil, sandy soil, and muck soil led to the formation of phorate sulfone and phorate sulfoxide; formation was much less in sandy soil(10). Phorate, when applied at a rate of 1.25 kg AI/ha to black clay loam soils under flooded conditions, degraded quickly(11). In shake flask tests, phorate showed more degradation in the presence of non-sterile estuarine sediment, half-life of about 1 day, than in the presence of sterile sediment, half-life of about 1.5 days(12). The half-lives of phorate in shake flasks containing a non-sterile sediment-water slurry were less than 1 day(12). In studies where 32 farm soils were incubated with phorate, initial half-lives of freshly-applied phorate ranged from <1 to >16 weeks(13). Accelerated degradation was stimulated by a single application and occurred most readily at pH's >7.4(13).

Juvenile sheepshead minnows, Cyprinodon variegatus, after 28 days exposure to phorate had a BCF of 90(1). According to a classification scheme(2), this BCF suggests the potential for bioconcentration in aquatic organisms is moderate(SRC). Bioconcentration of phorate from culture media by the blue green algae Anabaena sp. (ARM 310) and Aulosira fertilissima (ARM 68) was studied(1). Bioconcentration factors for phorate in Anabaena sp. were 3, 6 and 12 at 2.5, 5 and 10 ug/ml, respectively(3). In Anabaena fertilissima, at 2.5, 5 and 10 ug/ml of phorate, max bioconcentration of phorate was reached after 16, 16 and 32 hr, respectively, with bioconcentration factors of 8, 12 and 11 for the respective doses(3). Elodea nuttallii plants grown for 2 weeks in water with a deposit of C14-phorate in the bottom soil accumulated 30% of the originally soil-applied radiocarbon in their tissues; 56% of phorate accumulated in plant tissues when the insecticide was applied directly to the water(4).

In four different soils with percent organic carbon ranging from 0.087 to 0.65, phorate had an average Koc of 3200(1). Koc values of 543(2) and 2400(3) have also been reported for phorate. Phorate was found to be only slightly mobile in soil column studies(4). Phorate was less mobile in degraded chernozem and in black marsh soil, than in brown forest soil(4). According to a classification scheme(5), these Koc values suggest that phorate is expected to have low to slight mobility in soil. Phorate is most readily adsorbed to mineral solids and to silty loam and clay soils when the soils are dry(4). A soil mobility factor of 1.2 was calculated for phorate using soil column studies with Hagerstown silty clay loam (4.3% organic matter, 30% clay, pH 5.5) and Lakeland sandy loam(3.3% organic matter, 10% clay, pH 6.2)(6). A mobility factor of 1 represents no movement, while a mobility factor of 6 represents maximum movement(7). In a field study using watershed soils and their corresponding pond sediments, phorate was adsorbed more extensively by pond sediments (organic matter 1.4%, clay content 25%) than by Ca-saturated soils (organic matter 2.4%, clay content 16%)(7).

no data available

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.

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.

ADR/RID: UN3018 (For reference only, please check.)

IMDG: UN3018 (For reference only, please check.)

IATA: UN3018 (For reference only, please check.)

ADR/RID: ORGANOPHOSPHORUS PESTICIDE, LIQUID, TOXIC (For reference only, please check.)

IMDG: ORGANOPHOSPHORUS PESTICIDE, LIQUID, TOXIC (For reference only, please check.)

IATA: ORGANOPHOSPHORUS PESTICIDE, LIQUID, TOXIC (For reference only, please check.)

ADR/RID: 6.1 (For reference only, please check.)

IMDG: 6.1 (For reference only, please check.)

IATA: 6.1 (For reference only, please check.)

ADR/RID: I (For reference only, please check.)

IMDG: I (For reference only, please check.)

IATA: I (For reference only, please check.)

ADR/RID: Yes

IMDG: Yes

IATA: Yes

no data available

no data available

Do NOT take working clothes home.Depending on the degree of exposure, periodic medical examination is suggested.Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.