Physical and Chemical Properties Sample Clauses

Physical and Chemical Properties. (a) Appearance : Pink to red colored free flowing sand (b) Odor: : Odorless (c) Odor threshold : Not applicable (d) pH : 8.0 (e) Melting point : Approximately 1250˚C (2282˚F) (f) Flash point : Non-combustible (g) Evaporation rate : Not applicable (h) Flammability (solid, gas) : Non-flammable (i) Upper/lower flammability or explosive limits : Non-combustible (j) Vapor pressure : Not applicable (k) Vapor density : Not applicable (l) Specific gravity : 4.1 (m) Solubility : Insoluble

Physical and Chemical Properties. The study has revealed that most of the soils in Chikwawa and Ntcheu districts are ▇▇▇▇▇ ▇▇▇▇ as evidenced by the percentage proportions of silt and clay. The soils from Chikwawa were slightly acidic to alkaline with their pH ranging from 6.85 to 8.61 while those from Ntcheu were mostly acidic with pH levels ranging from 4.91 to 6.48. The study has also revealed that there is no significant variation (Fpr = 0.78) in the soil physical properties within each sampled district. For example, the distribution of clay in Ntcheu did not vary significantly (Fpr. = 0.91) from sites to sites. This shows that generally the soils are homogenous and that the significant variation (Fpr <0.42) in soil chemistry is attributed to the application of agricultural fertilizers and pesticide chemicals rather than the parent rock’s properties from which the soils were formed. Therefore, it is clear that different fields are being treated differently by different farmers. This agrees with the household surveys in the area which revealed that some farmers were not using chemicals pesticides and agricultural fertilizers, while others were heavily applying the two. It is therefore expected that from such fields, the soil chemistry will be different. The study also deduced that the most prevalent agricultural pollutants are pesticide residues and nutrient fertilizers. Results of actual levels of pestcides found in produce are underway. It is envisaged that the soil and water ecosystems are polluted via drainage and irrigation of the field’s water overflow of water as well as careless handling of chemicals by farmers in some cases.

Physical and Chemical Properties. Information on basic physical and chemical properties Continued on page 4…

Physical and Chemical Properties. Appearance (physical state, color, etc.) Solid, semi−fluid, flowable, granular paste, varying Gray color, varying Upper/lower flammability or explosive limits: N/A Order: Odorless Vapor pressure: N/A pH; Pour solutions: 12+ Relative density: Normal weight concrete: 2.2 to 2.6 Melting point/freezing point N/A Solubility N/A Initial boiling & boiling range: N/A Partition coefficient: n− octanol/water: N/A Flash point N/A Auto−ignition temp. N/A Evaporation rate: N/A Decomposition temp. N/A Flammability (solid, gas): N/A Viscosity: N/A SECTION 10. Stability & Reactivity Reactivity: Cementitious materials react slowly with water forming hydrated compounds, releasing heat, and producing a strong alkaline solution. Chemical stability: The products is stable Possibility of hazardous reactions: Under normal conditions of stage and use, hazardous reactions will not occur. Conditions to avoid No specific data. Incompatible materials: Reactive or incompatible with the following materials: oxidizing materials, acids, aluminum, and ammonium salt. Ready Mixed Concrete is highly alkaline and will react with acids to produce a violent, heat−generating reaction. Toxic gases or vapors may be given off depending on the acid involved. Reacts with acids, aluminum metals and ammonium salts. Aluminum powder and other alkali and alkaline earth elements will react in wet mortar or concrete, liberating hydrogen gas. Limestone ignites on contact with fluorine and is incompatible with acids, alum, ammonium salts, and magnesium. Silica reacts violently with powerful oxidizing agents such as fluorine, boron trifluoride, chlorine trifluoride, manganese trifluoride, and oxygen difluoride yielding possible fire Use impervious, waterproof, abrasion and alkali−resistant boots and long−sleeved and long−legged clothing to protect the skin from contact with wet Ready Mixed Concrete. To reduce foot and ankle exposure, wear impervious boots that are high enough to prevent Ready Mixed Concrete from getting inside them. If finishing concrete, wear waterproof knee pads to protect knees. Do not get Ready Mixed Concrete inside boots, shoes, or gloves. Remove clothing and protective equipment that becomes saturated with concrete and immediately wash exposed areas of the body. Appropriate footwear and any additional skin protection measures should be selected based on the task being performed and the risks involved. Footwear and other gear to protect the skin should be approved by a specialist before h...

Physical and Chemical Properties. Toxicity

Physical and Chemical Properties. Note: Unless otherwise stated, values are determined at 20°C (68°F) and 700 mm Hg (1 atm). Data represent typical values and are not intended to be specifications. Appearance: Dark ▇▇▇▇ or black Physical Form: Solid Odor: No distinct odor Odor Threshold: No data pH: Not applicable Vapor Pressure: Not applicable Vapor Density (air=1): Not applicable Boiling Point/Range: No data Melting/Freezing Point: No data Solubility in Water: Insoluble Partition Coefficient (n-octanol/water) (Kow): No data Specific Gravity: 2.24 @ 68°F (20°C) Bulk Density: 0.5-1.1 g/cc Percent Volatile: Not applicable Evaporation Rate (nBuAc=1): No data Flash Point: N/A Test Method: Not applicable LEL (vol % in air): No data UEL (vol % in air): No data Autoignition Temperature: No data

Physical and Chemical Properties. Form: liquid Odour: mild, amine-like Colour: clear colourless pH value: 8.5 - ▇▇ ( ▇▇▇ ▇/▇, ▇▇ °▇) Melting point: -23.6 °C ( 760 mmHg) Boiling point: 204.3 °C ( 760 mmHg) Vapour pressure: 0.32 mbar ( 20 °C) Density: 1.028 g/cm3 ( 25 °C) (DIN 51757) Partitioning coefficient n- -0.46 ( 25 °C) (OECD Guideline 107) octanol/water (log Pow): Viscosity, dynamic: 1.796 mPa.s ( 20 °C) Solubility in water: miscible Solubility (qualitative): miscible solvent(s): organic solvents, Molar mass: 99.00 g/mol

Physical and Chemical Properties. Note: Unless otherwise stated, values are determined at 20°C (68°F) and 760 mm Hg (1 atm). Appearance: Clear Physical Form: Liquid Odor: Hydrocarbon Odor Threshold: No data pH: Not applicable Vapor Pressure (mm Hg): < 0. 1 Vapor Density (air=1): No data Boiling Point: 420-690°F/ 216-366°C Solubility in Water: Insoluble Solubility in Other Solvents: Soluble in hydrocarbons Partition Coefficient (n-octanol/water) (Kow): No data Specific Gravity: 0.83-0.84 @ 60°F (15.6°C) Evaporation Rate (nBuAc=1): No data Flash Point: >220°F / 104°C Test Method: P▇▇▇▇▇-▇▇▇▇▇▇▇ Closed Cup (PMCC), ASTM D93, EPA 1010 LEL%: 0.58 UEL%: No data Autoignition Temperature: 442°F / 228°C Decomposition Temperature: No data

Physical and Chemical Properties. The Application must include the physical and chemical properties of the product (including thresholds, as applicable and available) which affect its transport into the environment, as a function of variables such as temperature, pressure and friction (from vehicles, etc.), solar radiation, humidity, precipitation, wind, etc., including, but not limited, to the following: (a) persistence, stability and chemical reactivity; degradation pathways, rates and products; (b) the names of any substance(s) which may be physically or chemically affected by contact with the product, and the consequences of such (c) vapor pressure; (d) leachability, solubility (in fresh water and sea water), octanol water partition coefficient (Kow), soil/water partition coefficient (if available), volatility and transport mechanics in the environment; (e) bioconcentration potential, either as a bioconcentration factor derived from animal tests or estimated from the octanol water partition coefficient (Kow); and (f) organoleptic (taste and odor) properties in water and air.