Molecular Formula | C12H8Cl6O |
Molar Mass | 380.91 |
Density | 1.75 g/cm3 |
Melting Point | 143-144°C(lit.) |
Boling Point | 496.11°C (rough estimate) |
Flash Point | 2°C |
Water Solubility | 195ug/L(25 ºC) |
Solubility | Soluble in ethanol and benzene (Weast, 1986) |
Vapor Presure | 30.7 and 58.5 at 20 and 25 °C, respectively (gas saturation-GC, Grayson and Fosbraey, 1982) |
Vapor Density | 13.2 (vs air) |
Appearance | neat |
Exposure Limit | NIOSH REL: TWA 0.25 mg/m3, IDLH 50 mg/m3; OSHA PEL: TWA 0.25 mg/m3; ACGIH TLV: TWA 0.25 mg/m3. |
Merck | 3103 |
BRN | 91396 |
Storage Condition | APPROX 4°C |
Stability | Stable. Breakdown product of aldrin in the environment. Incompatible with acids, active metals and strong oxidizing agents. |
Refractive Index | 1.5550 (estimate) |
Physical and Chemical Properties | White crystal. Melting point 176-177 ℃. Soluble in organic solvents such as benzene, xylene, carbon tetrachloride, and almost insoluble in water. It is stable in acid-base medium and light, and can blend with most pesticides and fertilizers. |
Risk Codes | R25 - Toxic if swallowed R27 - Very Toxic in contact with skin R40 - Limited evidence of a carcinogenic effect R48/25 - R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R36 - Irritating to the eyes R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R67 - Vapors may cause drowsiness and dizziness R65 - Harmful: May cause lung damage if swallowed R38 - Irritating to the skin R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S22 - Do not breathe dust. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S16 - Keep away from sources of ignition. S62 - If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label. S7 - Keep container tightly closed. |
UN IDs | UN 2811 6.1/PG 1 |
WGK Germany | 3 |
RTECS | IO1750000 |
HS Code | 29104000 |
Hazard Class | 6.1(a) |
Packing Group | II |
Toxicity | LD50 orally in rats: 46 mg/kg (Gaines) |
Henry's Law Constant | 27.6 at 5 °C, 63.2 at 15 °C, 82.9 at 20 °C, 97.7 at 25 °C, 217 at 35 °C:in 3% NaCl solution: 66.1at 5 °C, 158 at 15 °C, 395 at 25 °C, 507 at 35 °C (gas stripping-GC, Cetin et al., 2006) |
(IARC) carcinogen classification | 2A (Vol. 5, Sup 7, 117) 2019 |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Uses | Dieldrin is stable to strong bases, weak acids and light, and does not react with Grignard reagent. Its epoxy ring is very stable and reacts with anhydrous HBr to produce Australian ethanol. Can be mixed with most pesticides. Dieldrin is a contact insecticide with residues and has strong contact and stomach toxicity activity for most pests. Dieldrin is the oxide of aldrin, the use is the same as aldrin, and it is processed into powder, wettable powder or emulsion, the effect and residual effect are larger and longer-lasting than aldrin. |
toxicology | dieldrin can absorb poisoning through respiratory tract, digestive tract and skin. The mechanism of poisoning is not completely clear. After dieldrin invades the body,. Metabolism has a stimulating effect on the central nervous system (brain) and causes toxic damage. Pathological examination showed that the capillaries and veins of gray matter were highly congested and bleeding. Severe damage to the liver, manifested as congestion, edema and progressive necrosis. This damage is the result of dieldrin acting on the cell membrane of liver cells, which changes the permeation of the cell membrane. In addition, it also damages the capillary wall and changes the permeability of blood vessels. It is reported that dieldrin has an anti-lipase effect and reduces the activity of blood cholinesterase. Dieldrin is a highly toxic organochlorine pesticide. Its toxicity is quite different due to the species, sex, age, type and concentration of solvents of experimental animals. The LDso I = l for rats is 20-100 mg/kg. Some people have conducted experiments on the dose of convulsions caused by Dietwine poisoning. It is believed that every 100 grams of whole blood reaches 10-, and 20 mg is the threshold concentration in the blood. If this concentration is exceeded, the convulsions after poisoning can occur. |
use | dieldrin is a contact insecticide, has no systemic nature, has certain special effects, and has strong contact killing and stomach poison activity for large numbers of insects. |
Production method | is obtained by oxidation of aldrin through peracetic acid or peroxybenzoic acid. |
category | pesticide |
toxicity classification | highly toxic |
acute toxicity | oral-rat LD50: 38.3 mg/kg; Oral-mouse LD50: 38 mg/kg |
flammability hazard characteristics | toxic chloride gas released by heating |
storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from food raw materials storage and transportation |
fire extinguishing agent | sand, dry powder, foam |
occupational standard | TWA 0.25 mg/m3; STEL 0.75 mg/m3 |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
immediate life-threatening and health concentration | 50 mg/m3 |