Thiram
- Tetramethylthioperoxydicarbonicdiamine
- Tetramethylthirium disulfide
- bis(dimethylthiocarbamyl)disulfide
Thiram | |
| |
| Formula | C6H12N2S4 |
| Structure | |
| Description | White to yellowish to greyish powder or crystals, characteristic odor. |
| Uses | Fungicide for large brown patch snowmold and dollar spot on fine turfs. |
| Registry Numbers and Inventories. | |
| CAS | 137-26-8 |
| EC (EINECS/ELINCS) | 205-286-2 |
| EC Index Number | 006-005-00-4 |
| EC Class | Mutagenic Category 3; Harmful; Irritant; Sensitising |
| EC Risk Phrase | R 20/22 36/37 43 68 |
| EC Safety Phrase | S 36/37 |
| RTECS | JO1400000 |
| RTECS class | Agricultural Chemical and Pesticide; Tumorigen; Drug; Mutagen; Reproductive Effector; Human Data; Primary Irritant |
| UN (DOT) | 2771 |
| Merck | 12,9510 |
| Beilstein/Gmelin | 1725821 |
| Beilstein Reference | 4-04-00-00242 |
| RCRA | U244 |
| EPA OPP | 79801 |
| Swiss Giftliste 1 | G-2947 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Japan ENCS (MITI) | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | C6H12N2S4 |
| Formula mass | 240.43 |
| Melting point, °C | 148 - 152 |
| Boiling point, °C | 307 |
| Vapor pressure, mmHg | 0.0007 (25 C) |
| Saturation Concentration | Very low based on vapour pressure at 20 C |
| Density | 1.426 g/cm3 |
| Solubility in water | 30 mg/L |
| pKa/pKb | 13.18 (pKb) |
| Partition coefficient, pKow | 1.76 |
| Heat of vaporization | 54.8 kJ/mol |
| Hazards and Protection. | |
| Storage | Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. |
| Handling | Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. |
| Protection | Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin. |
| Respirators | Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. |
| Small spills/leaks | Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation. |
| Stability | Stable under normal temperatures and pressures. |
| Incompatibilities | Acids - oxidizing agents - reducing agents. |
| Decomposition | Nitrogen oxides, carbon monoxide, oxides of sulfur, irritating and toxic fumes and gases, carbon dioxide, nitrogen. |
| Fire. | ||||
| Flash Point,°C | 139 | |||
| Fire fighting | Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Use extinguishing media appropriate to the surrounding fire. Substance is noncombustible. Containers may explode when heated. Extinguishing media: Do NOT get water inside containers. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use water spray, fog or regular foam. Cool containers with flooding quantities of water until well after fire is out. | |||
| Fire potential | Non-Combustible | |||
| Combustion products | Toxic and irritating oxides of sulfur are formed. | |||
| NFPA | Health | 3 | ||
| Flammability | 0 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | TLV: ppm; 1 mg/m3 (ACGIH 1991-1992). PDK: 0.5 mg/m3 P (USSR 1991). OSHA PEL: TWA 5 mg/m3 NIOSH REL: TWA 5 mg/m3 NIOSH IDLH: 100 mg/m3 |
| Poison_Class | 3 |
| Exposure effects | Repeated or prolonged exposure may cause allergic reactions in sensitive individuals. |
| Ingestion | Harmful if swallowed. May cause gastrointestinal irritation with nausea, vomiting and diarrhea. |
| Inhalation | Harmful if inhaled. Causes respiratory tract irritation. |
| Skin | May cause skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. |
| Eyes | Causes eye irritation. |
First aid |
|
| Ingestion | Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. |
| Inhalation | Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration. |
| Skin | Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse. |
| Eyes | Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. |
| Transport. | ||
| UN number | 2771 | |
| Response guide | 151 | |
| Hazard class | 6.1 | |
| Packing Group | I; II; III | |
| USCG CHRIS Code | THR | |
| HS Code | 2930 30 00 | |
| Std. Transport # | 4962537 | |