Дифениловый эфир

170.21

170.21

1364620

202-981-2

3O695R5M1U

0791

174083|19311

3077

DTXSID9021847

Colorless crystals or liquid|Colorless, crystalline solid or liquid (above 82 degrees F)

2902909090

9.2

4.2

Diphenyl oxide appears as colorless liquid with a mild pleasant odor. May float or sink in water. Freezing point is 81°F. (USCG, 1999)

1.08 g/cm³

28 °C

259 °C

>230 °F

1.5795-1.5815

H2O: insoluble ;alcohol: soluble (lit.)

2-8°C

<1 mm Hg ( 20 °C)

>5.86 (25 °C, vs air)

Oral-Rat LD50: 3370 mg/kg

Combustible in case of open flame, high temperature, strong oxidant; burning emits irritating smoke

0.8-1.5%(V)

Geranium-like odor

9.60e-12 cm3/molecule*sec

Henry's law constant = 2.8X10-4 atm cu m/mole at 25 °C (est)

pK(BH+) = 5.79 at 25 °C /negative logarithm of ionization constant of protonated base/

UNPLEASANT & PUNGENT ODOR. ...ATMOSPHERIC CONCN BETWEEN 0.1 & 1 PPM CAN...BE DETECTED BY SMELL, WHICH IS A USEFUL WARNING PROPERTY. /DOWTHERM/|Heat of fusion = 4.115 kcal/mol|Liquid molar volume = 0.160758 cu m/kmol|Heat of formation = 4.4300X10+7 J/kmol|For more Other Experimental Properties (Complete) data for DIPHENYL ETHER (6 total), please visit the HSDB record page.

Insoluble in water.

Ethers

DIPHENYL OXIDE can react with oxidizing materials. (NTP, 1992). A vigorous reaction occurred between the ether and chlorosulfuric acid.

1148 °F (USCG, 1999)|1144 °F (618 °C).|610 °C

-1466.63 kcal/mol at 25 °C

8.09 eV

Lower flammable limit: 0.7% by volume; Upper flammable limit: 6.0% by volume|Flammability limits = 0.8 to 1.5 vol%|Combustible Solid Class IIIB Combustible Liquid: Fl.P. at or above 200°F.

15.99 kcal/mol at 25 °C

Critical temperature = 763.00 deg K; Critical pressure = 3.1300X10+6 Pa

Ⅲ

9

UN 3077 9/PG 3

2

51/53-36/37/38-39/23/24/25-23/24/25-36/38-36

60-61-57-37/39-26-45-36/37

KN8970000

N,Xi,T

Warehouse ventilated, low temperature and dry

Explosive when mixed with air

Stable under recommended storage conditions.

P273-P305 + P351 + P338

H319-H411

SRP: Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in air, soil or water; effects on animal, aquatic and plant life; and conformance with environmental and public health regulations. If it is possible or reasonable use an alternative chemical product with less inherent propensity for occupational harm/injury/toxicity or environmental contamination.|Product: Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed professional waste disposal service to dispose of this material. Contaminated packaging: Dispose of as unused product.|Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.|SRP: Wastewater from contaminant suppression, cleaning of protective clothing/equipment, or contaminated sites should be contained and evaluated for subject chemical or decomposition product concentrations. Concentrations shall be lower than applicable environmental discharge or disposal criteria. Alternatively, pretreatment and/or discharge to a permitted wastewater treatment facility is acceptable only after review by the governing authority and assurance that "pass through" violations will not occur. Due consideration shall be given to remediation worker exposure (inhalation, dermal and ingestion) as well as fate during treatment, transfer and disposal. If it is not practicable to manage the chemical in this fashion, it must be evaluated in accordance with EPA 40 CFR Part 261, specifically Subpart B, in order to determine the appropriate local, state and federal requirements for disposal.

Incompatible materials: Strong oxidizing agents.|Strong oxidizers may cause fires and explosions. Attacks some plastics, rubber, and coatings.|Strong oxidizers. /Vapor/

This chemical is combustible. (NTP, 1992)|Combustible.

|Warning|H319 (81.41%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]|P264, P273, P280, P305+P351+P338, P337+P313, P391, and P501|Aggregated GHS information provided by 2217 companies from 39 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]|H303: May be harmful if swallowed [Warning Acute toxicity, oral]|P264, P305+P351+P338, P312, P332+P313, and P337+P313|H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]|P273, P391, and P501

SMALL SPILLS AND LEAKAGE: If you spill this chemical, use absorbent paper to pick up all liquid spill material. Your contaminated clothing and absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with alcohol followed by washing with a strong soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned. STORAGE PRECAUTIONS: You should store this chemical under refrigerated temperatures, and keep it away from oxidizing materials. (NTP, 1992)

Skin: Wear appropriate personal protective clothing to prevent skin contact. Eyes: Wear appropriate eye protection to prevent eye contact. Wash skin: The worker should immediately wash the skin when it becomes contaminated. Remove: Work clothing that becomes wet or significantly contaminated should be removed and replaced. Change: No recommendation is made specifying the need for the worker to change clothing after the work shift. (NIOSH, 2016)|Goggles or face shield; rubber gloves.|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: Handle with gloves.|Body Protection: Impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.|For more Personal Protective Equipment (PPE) (Complete) data for DIPHENYL ETHER (12 total), please visit the HSDB record page.|(See protection codes)

Combustible when exposed to heat or flame.

Moderate when exposed to heat or flame...|Explosive limits , vol% in air: 0.8-15

Suitable extinguishing media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.|Advice for firefighters: Wear self-contained breathing apparatus for firefighting if necessary.|If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.|Dry chemical, carbon dioxide. Water or foam may cause frothing.

Accidental release measures: Personal precautions, protective equipment and emergency procedures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Avoid breathing dust.; Environmental precautions: Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.; Methods and materials for containment and cleaning up: Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for disposal.

Precautions for safe handling: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Further processing of solid materials may result in the formation of combustible dusts. The potential for combustible dust formation should be taken into consideration before additional processing occurs. Provide appropriate exhaust ventilation at places where dust is formed.|Appropriate engineering controls: Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.|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.|If material not on fire and not involved in fire: Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary.|For more Preventive Measures (Complete) data for DIPHENYL ETHER (9 total), please visit the HSDB record page.

Inhalation may cause irritation of eyes, skin, and respiratory system.|Contact of liquid with eyes causes mild irritation. Prolonged exposure of skin to liquid causes reddening and irritation.|A skin and eye irritant.

Permissible Exposure Limit: Table Z-1 8-hr Time Weighted Avg: 1 ppm (7 mg/cu m). /Vapor/

Recommended Exposure Limit: 10 Hour Time-Weighted Average: 1 ppm (7 mg/cu m). /Vapor/

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. If solid: sweep spilled substance into containers. If appropriate, moisten first to prevent dusting. Then store and dispose of according to local regulations.

Separated from strong oxidants. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.

A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20 °C.

The substance is mildly irritating to the eyes, skin and upper respiratory tract.

Repeated or prolonged contact with skin may cause dermatitis.

NO open flames.

Use ventilation. Use local exhaust.

Protective gloves.

Wear safety spectacles.

This action promulgates standards of performance for equipment leaks of Volatile Organic Compounds (VOC) in the Synthetic Organic Chemical Manufacturing Industry (SOCMI). The intended effect of these standards is to require all newly constructed, modified, and reconstructed SOCMI process units to use the best demonstrated system of continuous emission reduction for equipment leaks of VOC, considering costs, non air quality health and environmental impact and energy requirements. Diphenyl oxide is produced, as an intermediate or a final product, by process units covered under this subpart.

| 1 - Materials that, under emergency conditions, can cause significant irritation.| 1 - Materials that must be preheated before ignition can occur. Materials require considerable preheating, under all ambient temperature conditions, before ignition and combustion can occur.| 0 - Materials that in themselves are normally stable, even under fire conditions.

Diphenyl ether has been detected at concentrations > 100 ppb in 1 of 63 effluents collected from chemical manufacturing plants across the US(1). Wastewater samples collected from a small specialty chemicals manufacturing plant on the Pawtuxet River (RI) during 1975 and 1976 contained diphenyl ether concentrations ranging from 0.01 to 0.20 ppm(2,3). In Delaware diphenyl ether was present in digested and dewatered sludge obtained from a Georgetown WWTP in July 2000 at trace amounts and in digested and dewatered sludge obtained from a Willmington WWTP October 2002 at concentration of 99.6 ug/g(4). Diphenyl ether has been identified in advanced waste water treatment facility samples collected from Orange County, CA (Jan-Feb 1976)(5).|Diphenyl ether was listed as 57 of the 99 most frequently detected compounds at US hazardous waste sites monitored for 2 years prior to 1989(1). The compound has been detected in wastewater effluents from municipal waste water treatment facilities(2,3), textile finishing plants(4), organic chemical and plastic manufacturing plants, soap and detergent facilities, and electronic facilities(5). Diphenyl ether is reportedly released to the atmosphere in emissions from combustion, phthalic anhydride manufacture, and turbine engines(6). The detection of diphenyl ether in river water samples adjacent to hazardous waste disposal areas in Niagara Falls, NY indicates that leaching is a source of environmental contamination(7). Possible sources of release to environmental waters include spent heat exchange chemicals and byproduct from phenol manufacture(8).

INDOOR: Diphenyl ether was identified at a concentration of 9.24 ng/cu m in 24hr total suspended particulate matter samples collected from the Lanyuan Hotel, Xigu District in Lanzhou City, China in March 2003(1).

Diphenyl ether has been reported as one of the top 99 most frequently detected chemicals at hazardous waste sites from data collected for 2 years and complied in 1989(1). Diphenyl ether has been qualitatively detected in organic material from advanced waste water treatment facility samples collected from Orange County, CA (Jan-Feb 1976)(2).