sulfamic acid.docx

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1、sulfamic acidSulfamic acid, 99.5% 99.6% 99.8 also known as amidosulfonic acid, amidosulfuric acid, aminosulfonic acid, and sulfamidic acid, is a molecular compound with the formula 3HNSO3. This colorless, water-soluble compound finds many applications. 1.Sulfamic acid is a moderately strong acid, Be

2、cause the solid is non-hygroscopic, it is used as a standard in acidimetry (quantitative assays of acid content). 2. Sulfamic acid is used as an acidic cleaning agent, sometimes pure or as a component of proprietary mixtures, typically for metals and ceramics. It is frequently used for removing rust

3、 and limescale, replacing the more volatile and irritating hydrochloric acid, which is however cheaper. It is often a component of household descaling agents, for example, Lime-A-Way Thick Gel contains up to 8% sulfamic acid and pH 2 - 2.2 6, or detergents used for removal of limescale. When compare

4、d to most of the common strong mineral acids, Sulfamic acid has desirable water descaling properties, low volatility, low toxicity and is a water soluble solid forming soluble calcium and iron-III salts. Its also finds applications in the industrial cleaning of dairy and brew-house equipment. Althou

5、gh it is considered less corrosive than hydrochloric acid, corrosion inhibitors are often added to commercial cleansers of which it is a component. It is possible that the amino group could act as a ligand under certain circumstances, as does the chloride ion for Fe-III, when hydrochloric acid is us

6、ed in rust removal. 3. Dye and pigment manufacturing 4. in electroplating 5Herbicide 6. Catalyst for esterification process 7.Pulp and paper industry as a chloride stabilizer 8. Ingredient in fire extinguishing media. Sulfamic acid is the main raw material for ammonium sulfamate which is a widely us

7、ed herbicide and fire retardant material for household product. 9. In household cleaning chemical products such as Cameo 氨基磺酸 IUPAC名 Sulfamic acid 识别 CAS号 SMILES 5329-14-6 H2-N-SO3-H 性质 化学式 摩尔质量 密度 熔点 沸点 溶解度 pKa H3NSO3 97.10 gmol1 2.15 g/cm3 205 C (401 F) 分解 可溶 1.18 (1% solution 25 C (77 F) 若非注明,所有数

8、据来自25 C,100 kPa。 SULFAMIC ACID PRODUCT IDENTIFICATION CAS NO. EINECS NO. FORMULA MOL WT. H.S. CODE TOXICITY SYNONYMS 5329-14-6 226-218-8 H2NSO3H 97.09 Oral rat LD50: 3160 mg/kg Amidosulfonic acid; Amidosulfuric acid; Sulphamic acid; Aminosulfonic acid; Kyselina amidosulfonova; sulphamidic acid; Sulf

9、amidsure (German); cido sulfamdico (Spanish); Acide sulfamidique (French); DERIVATION CLASSIFICATION PHYSICAL STATE MELTING POINT BOILING POINT white crystalline solid 205 C (Decomposes) PHYSICAL AND CHEMICAL PROPERTIES SPECIFIC GRAVITY 2.1 SOLUBILITY IN WATER soluble pH VAPOR DENSITY AUTOIGNITION N

10、FPA RATINGS FLASH POINT STABILITY APPLICATIONS Sulfamic acid, amidosulfonic acid H3NSO3, is a nonvolatile, white crystals; decomposes at melting point 205 C; slightly soluble in water and organic solvents. The main application can find in metals and ceramics cleaning industry as a replacement for hy

11、drochloric acid to remove rust. It is also used in: Formulating cleaning agents Cleaning metals and ceramics Rust removal agent in air conditioner and cooling system Chemical catalyst for esterification process Dye and pigment manufacturing Ingredient in fire extinguishing media Pulp and paper indus

12、try as a chloride stabilizer Plasticizer Chemical intermediate Textile and paper bleaching Herbicide Coagulator for urea-formaldehyde resins 1.18 (1% sol.) 3.3 Health: 3 Flammability: 0 Reactivity: 0 Stable under ordinary conditions REFRACTIVE INDEX Numerous sulfamates (mono, di, tri O-substituted a

13、nd N-substituted salts and esters) can be existed for characteristic applications. SALES SPECIFICATION APPEARANCE PURITY SULFATE Fe WATER HEAVY METALS TRANSPORTATION PACKING HAZARD CLASS UN NO. 25kgs in bag 8 (Packing Group: III) 2967 white crystalline solid 99.5% min 0.05% max 10ppm max 0.05% max 10ppm max OTHER INFORMATION Hazard Symbols: XI, Risk Phrases: 36/38, Safety Phrases: 26,28

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