Sulfamic acid. Jiki da kuma sinadaran Properties. aikace-aikace

Sulfamic acid (sauran sunayen: aminosulfonic acid, acid, amidosulfuric, sulfuric acid monoamide) - wani abu da yake colorless rhombic lu'ulu'u. Irin wannan fili na Formula: NH2SO2OH (ko NH2SO3H).

Jiki Properties na aminosulfonic acid:

1. Wannan fili ta wanzu a cikin nau'i na colorless lu'ulu'u wanda da lu'u-lu'u siffar. Crystal tsarin orthorhombic: b = 0,8025 nm, a = 0,8037 nm, z = 8, c = 0,9237 nm. A cikin irin na zwitterion wanzu a cikin wani crystalline jihar.

2. Sulfamic acid yana da wadannan kwayoyin kaya masu nauyi: 97,098 amu Da narkewa batu ne 205 digiri, da fadada - 260 digiri Celsius.

3. solubility a acetone a 25 ne 0,04 darajõji; cikin ruwa a 20 digiri 17,57, 22,77 a 40 darajõji, kuma 80 digiri - 32,01; a ethyl barasa a 25 ° C 0,01; formamide a 25 digiri 0,18; a methanol a 25 digiri 0.4.

4. Yana yana da wani yawa na 2,126 grams da santimetr³.

Chemical Properties na sulfamic acid:

1. Lokacin da mai tsanani zuwa 260 digiri shi decomposes zuwa SO2 (sulfur oxide ll), SO3 (sulfur oxides lll), N2 (nitrogen) da H 2 Ya (ruwa). Ga abin da wannan dauki:

NH2SO2OH = SO2 (Oser oxide ll) + SO3 (sulfur oxides lll) + N2 (nitrogen da aka saki a matsayin gas) + H2O (ruwa).

2. A dakin da zazzabi, wani abu ma ba hydrolyzed. Amma a ma high yanayin zafi shi ne hydrolyzed zuwa NH4HSO4. Haka kuma, a wani acidic matsakaici da dauki rate ƙaruwa muhimmanci.

3. Da daban-daban karafa, carbonates, hydroxides da oxides na aminosulfonic acid siffofin NH2SO3M gishiri (Generic sunan - sulfamates) tare da thionyl chloride SOCl2 - NH2SO2Cl sulfamoyl.

4. The hulda da HNO2 (nitrous acid) ne hõre oxidative deamination - NH2SO3H + HNO2N2O + N2 (nitrogen da aka saki a matsayin gas) + H2SO4 (sulfuric acid). Wannan dauki ake amfani da su ƙayyade yawan sulfuric acid monoamide kuma zuwa decompose da suka wuce haddi nitrous acid (HNO2) a cikin yi na azo dyes.

5. Sulfamic acid da aka oxidised da chlorine (CL), bromine (Br), potassium permanganate (KMnO4) da kuma chlorates zuwa sulfuric acid (H2SO4) da nitrogen (N2).

6. Reaction wannan acid da HClO (hypochlorous acid) ko NaClO (sodium hypochlorite) take kaiwa ga samuwar na N, N-dichloro- ko N-chloro wanda aka samu. A dauki tare da sodium (Na) a cikin ruwa ammonia (NH3) zuwa NaSO3NHNa, tare da sodium sulfate (Na2SO4) zuwa 6HSO3NH2 · · 5Na2SO4 15N2O.

7. Har ila yau monoamide sulfuric acid reacts tare da firamare da kuma sakandare alcohols, tare da phenols. Mai zurfi, na biyu kuma primary amines ta samar da wannan acid aminosulfamaty da amides na carboxylic acid - ammonium N-acyl sulfamates.

8. Don gane aminosulfonic acid da aka yi amfani da dauki tare da nitrous acid (HNO2) ko fusing da benzoin (C14H12O3).

A amfani monoamide sulfuric acid

1. Industrial Chemistry: tsaftacewa na'ura giya da kuma madara dutse daga daban-daban ma'adinai adibas (oxide fina-finai, taurin salts, da baƙin ƙarfe mahadi). Production na hydrochloric acid a cikin wannan harka zama disadvantageous tun sulfamic kasa lalata.

2. A gida kuma a kan ikon jama'a Enterprises: for sarrafa kitchen kayayyakinsa, da cin abinci yankin, a matsayin wani bangare na wasu abu don wanka.

3. Kamar yadda wani albarkatun kasa don shirya wasu sinadaran mahadi, kamar herbicides da wuta resistant kayan.

4. A electroplating: etching tin abinci da kuma haifar da Wutan.

5. Don cire gamsai daga wuraren waha (su ruwa sanyaya tsarin).

6. Sa'ad da tsaftacewa inji domin yin takarda.

7. Lokacin da sarrafa bangarori na rijiyoyin man fetur.

Ta yaya za a kiyaye sulfamic acid, da kuma abin da riƙi shirinsu da ya kamata a dauka a lokacin da yin amfani da shi?

Sulfuric acid monoamide da dangantaka da wani nonflammable abu. A mataki na tasiri a kan kwayoyin halittar da dangantaka da mahadi na uku aji na hatsari. Yana sa mai tsanani konewa don fata da kuma mucous membranes.

Adana wannan acid a biyu polyethylene jakar (damar arba'in kilo) tsara musamman domin sinadaran da samfurori. Yana da daraja idan akai la'akari da cewa samfurin ne da narkewa a cikin H2O (ruwa). Domin shafe tsawon ajiya caking.