Name | 2,3-Dichloro-1,4-naphthoquinone |
Synonyms | usr604 USR 604 Dichlone Uniroyal Sanquinon quintar540f usrubber604 u.s.rubber604 U.s. rubber 604 2,3-Dichloro-1,4-naphthoquinone |
CAS | 117-80-6 |
EINECS | 204-210-5 |
InChI | InChI=1/C10H4Cl2O2/c11-7-8(12)10(14)6-4-2-1-3-5(6)9(7)13/h1-4H |
Molecular Formula | C10H4Cl2O2 |
Molar Mass | 227.04 |
Density | 1.4057 (rough estimate) |
Melting Point | 194-197 °C (lit.) |
Boling Point | 275 °C (2 mmHg) |
Flash Point | 275°C/2mm |
Water Solubility | 0.008 g/L |
Vapor Presure | 0Pa at 20℃ |
Appearance | Fine Crystalline Powder |
Color | Yellow |
Merck | 14,3045 |
BRN | 1073511 |
Storage Condition | Store below +30°C. |
Refractive Index | 1.5410 (estimate) |
Physical and Chemical Properties | Melting Point: 194-197°C(lit.) Boiling Point: 275°C (2 mmHg) flash point: 275°C/2mm water solubility: 0.008g/L Merck 14,3045 BRN 1073511 CAS DataBase: 117-80-6(CAS DataBase Reference) NIST chemical information: 117-80-6(NIST) EPA chemical Substance information: 117-80-6(EPA Substance) trait: yellow crystal. Melting point 194-195 ℃, boiling point 275 ℃(0.27kPa), sublimation, soluble in O-xylene (4%), O-dichlorobenzene, slightly soluble in acetone, benzene and ethers, insoluble in cold ethanol, soluble in hot ethanol, 25 ° C water solubility of 0.1ppm. It is stable to acid, and will hydrolyze in case of alkali. |
Use | Used as medicine, pesticide, dye intermediates.Non-systemic fungicides, mainly used for seed treatment and foliar spraying, but not for legume seed treatment. Foliar spraying is effective in controlling apple scab, Bean anthracnose and tomato late blight. The product can also be used as a raw material for paddy field herbicides, wood, cotton fiber, rubber and other fungicides.Used as pharmaceutical, pesticide, dye intermediatesIt is an important intermediate in the production of pesticide aminochloronaphthoquinone (saquinone) and dicyanoanthraquinone (dithionon).It is also an important co-catalyst for the production of 3,3-dichlorobenzidine (DCB). |
Risk Codes | R22 - Harmful if swallowed R36/38 - Irritating to eyes and skin. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 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. |
UN IDs | UN 2811 6.1/PG 3 |
WGK Germany | 3 |
RTECS | QL7525000 |
TSCA | Yes |
HS Code | 29147090 |
Hazard Class | 6.1 |
Packing Group | III |
Toxicity | LD50 orally in rats: 1300 mg/kg (Bailey, White) |
LogP | 2.9 at 23℃ |
NIST chemical information | Information provided by: webbook.nist.gov (external link) |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
use | non-systemic fungicide, mainly used for seed treatment and foliar spraying, but not for legume seed treatment. Foliar spraying is effective in preventing apple scab, bean anthracnose, and tomato late blight. The product can also be used as a raw material for paddy field herbicides, wood, cotton fiber, rubber, etc. Used as an intermediate in medicine, pesticide and dye. Non-systemic fungicides, mainly used for seed treatment and foliar spraying, but not for legume seed treatment. Foliar spraying is effective in preventing and controlling black star disease of apples, anthracnose of beans, and late blight of tomatoes. The product can also be used as a raw material for paddy field herbicides, wood, cotton fiber, rubber, etc. Used as an intermediate in medicine, pesticide and dye is an important intermediate in the production of pesticide ammonia chloride naphthoquinone (algal quinone) and dicyanoanthraquinone (dithione). It is also an important co-catalyst for the production of 3, 3-dichlorobenzidine (DCB). Fungicide for agricultural and textile raw materials. Herbicide. |
Production method | is obtained by chlorination of 1, 4-naphthoquinone. The chlorination operation is carried out in acetic anhydride or dinitrobenzene or alcohols, phenols, and hydrocarbon solvents. The catalysts are bromine or iron powder and ferric chloride. It can also be obtained by chlorination of 1, 4-naphthalenesulfonic acid in a 50% dilute sulfuric acid solution with iron as a catalyst at 80°C. |
category | pesticide |
toxicity classification | highly toxic |
acute toxicity | oral-rat LD50: 160 mg/kg; Oral-mouse LD50: 440 mg/kg |
flammability hazard characteristics | thermal decomposition of toxic chloride gas |
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 | STEL 0.5 mg/m3 |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |