Nitric acid

Nitric acid Property

mp : -42 °C bp : 120.5 °C(lit.) density : 1.41 g/mL at 20 °C vapor density : 1 (vs air) vapor pressure : 8 mm Hg ( 20 °C) Fp : 120.5°C storage temp. : 2-8°C Water Solubility : >100 g/100 mL (20 ºC) Sensitive : Hygroscopic Merck : 14,6577 CAS DataBase Reference: 7697-37-2(CAS DataBase Reference) NIST Chemistry Reference: Nitric acid(7697-37-2) EPA Substance Registry System: Nitric acid(7697-37-2)

Safety

Hazard Codes : C,O,Xi,T+ Risk Statements : 8-35-34-20-41-37/38-36/38-26/27 Safety Statements : 23-26-36-45-36/37/39-39-60-28 RIDADR : UN 3264 8/PG 3 WGK Germany : 1 RTECS : QU5900000 F : 8 HazardClass : 8 PackingGroup : II Hazardous Substances Data: 7697-37-2(Hazardous Substances Data)

Nitric acid Chemical Properties,Usage,Production

Chemical Properties Colourless clear liquid Usage Nitric acid is an important starting material for the production of fertilizers and chemicals. Diluted nitric acid is used for dissolving and etching metals Product Data Sheet Usage Nitric acid is an important material for the production of explosives. Concentrated nitric acid, usually mixed with sulfuric acid (mixed acid), is used for nitrating organic compounds. Product Data Sheet General Description Nitric acid is a colorless to yellow or red liquid sometimes fuming reddish brown vapors with a suffocating odor. Nitric acid is soluble in water with release of heat. Nitric acid is corrosive to metals or tissue. Nitric acid will accelerate the burning of combustible materials and Nitric acid may even cause ignition upon contact with combustible material. Nitric acid is fully soluble in water and may react violently upon contact with water with the evolution of heat, fumes and spattering. Prolonged exposure to low concentrations or short term exposure to high concentrations may result in adverse health effects. Density 10.4 lb / gal. Air & Water Reactions Fumes in air. Fully soluble in water with release of heat. Reacts violently with water with the production of heat, fumes, and spattering. Reactivity Profile Nitric acid; ignites upon contact with alcohols, amines, ammonia, beryllium alkyls, boranes, dicyanogen, hydrazines, hydrocarbons, hydrogen, nitroalkanes, powdered metals, silanes, or thiols [Bretherick 1979. p.174]. The reaction of finely divided antimony and nitric acid can be violent [Pascal 10:504. 1931-34]. Bromine pentafluoride reacts violently with strong nitric acid and strong sulfuric acid [Mellor 2, Supp. 1:172. 1956]. Experiments show that mixtures of over 50% nitric acid by weight in acetic anhydride may act as detonating explosives [BCISC 42:2. 1971]. An etching agent of equal portions of acetone, nitric acid, and 75% acetic acid exploded 4 hours after Nitric acid was prepared and placed in a closed bottle. This is similar to a formulation for the preparation of tetranitromethane a sensitive explosive [Chem. Eng. News 38: 56. 1960]. Phosphine is violently decomposed by concentrated nitric acid, and flame is produced. Warm fuming nitric acid, dropped in a container of phosphine gas produces an explosion [Edin. Roy. Soc. 13:88. 1835]. An explosion occurs when nitric acid is brought into contact with phosphorus trichloride [Comp. Rend. 28:86]. The reaction of sodium azide and strong nitric acid is energetic [Mellor 8, Supp 2:315. 1967]. Reacts violently with water with the production of heat, fumes, and spattering. Fire Hazard Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Vapors may accumulate in confined areas (basement, tanks, hopper/tank cars etc.). Substance will react with water (some violently), releasing corrosive and/or toxic gases and runoff. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.

Nitric acid Preparation Products And Raw materials

Raw materials Platinum Magnesium nitrate CARBON MONOXIDE Compressor cellular membranes Air blower Oxygen NITROGEN DIOXIDE NITRIC OXIDE Dehydrolyzing agent Heat exchanger Magnesium oxide Sodium nitrate Ammonia

Preparation Products LEAD (II) BORATE MONOHYDRATE PYRIDINE-2-SULFONIC ACID 3,5-DINITRO-4-HYDROXYBENZALDEHYDE 2-NITROTHIOPHENE-4-CARBOXALDEHYDE 1,3-Dimethyl-8-nitro-1H-purine-2,6(3H,9H)-dione ,97% Lanthanum(III) nitrate hexahydrate 5-AMINO-2,4,6-TRIIODO-N-METHYLISOPHTHALAMIC ACID (50 MG) CADMIUM NITRATE TETRAHYDRATE 5-Methylisoxazole-3-carboxylic acid 2-NITROMESITYLENE FLAVIANIC ACID 2-METHYL-5-NITRO-PYRIMIDINE-4,6-DIOL 5-Chloro-2-hydroxy-3-nitropyridine NESSLER'S REAGENT 3-Nitrobenzonitrile 2-Nitrothiophene 4-Acetamido-3-nitrobenzoic acid 6-NITROPIPERONAL MERCUROUS CHLORIDE PHENYLMERCURY NITRATE 10-Nitroanthrone Sodium nitrohumate 2,6-Dimethyl-3-nitropyridine MERCUROUS NITRATE 2-Hydroxy-5-nitronicotinic acid 5-NITROBARBITURIC ACID 3-METHYLPYRAZINE-2-CARBOXYLIC ACID 2-HYDROXY-3,5-DINITROPYRIDINE Mercury iodide 4,5-DIPHENYLIMIDAZOLE 2-ethyl-5-nitrobenzenamine 3,3'-DINITROBENZOPHENONE Mesaconic acid mercurous bromide Diethyl nitromalonate Cadmium nitrate 2,4-Dichloro-5-nitrobenzalehyde hydrofining catalysts (RN series) TETRANITROMETHANE Methyl 3-nitrobenzoate

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