Ammonium Sulfate CAS 7783-20-2 Abun ciki 99.0 ~ 100.5%

(NH4) 2SO4 132.14
Ammonium sulfate (7783-20-2).
BAYANI
Ammonium Sulfate ya ƙunshi NLT 99.0% da NMT 100.5% na (NH4) 2SO4.
GANO
• A. Gwaje-gwajen Gane-Janar, Ammonium <191>: Magani (1 a cikin 20) ya cika buƙatun.
• B. Gwaje-gwajen Gane-Janar, Sulfate <191>: Magani (1 a cikin 20) ya cika buƙatun.
ASSAY
• Tsari
Misali: 2.5 g na ammonium sulfate
Titrimetric tsarin
(Duba Titrimetry <541>.)
Yanayin: Ragowar titration
Titrant: 1 N sodium hydroxide VS
Baya titrant: 1 N sulfuric acid VS
Gano ƙarshen ƙarshen: Launimetric
Blank: 50.0 ml na 1 N sodium hydroxide VS, daidai gwargwado
Analysis: Ƙara Samfurin zuwa 500-ml conical flask kuma narke a cikin 50 ml na ruwa.Ƙara 50.0 ml na 1 N sodium hydroxide VS, sanya mazugi mai tacewa a hankali a cikin wuyan filako, kuma tafasa har sai an fitar da ammonia (kimanin 10-15 min), kamar yadda aka ƙaddara tare da takarda litmus.Cool, ƙara 0.15 ml na thymol blue TS, kuma titrate da wuce haddi sodium hydroxide tare da 1 N sulfuric acid VS.Yi yanke shawara mara kyau.
Yi lissafin adadin ammonium sulfate [(NH4)2SO4] a cikin Samfurin da aka ɗauka:
Sakamako = [(BV) × N × F ×100]/W
B = 1 N sulfuric acid VS cinye ta Blank (mL)
V = 1 N sulfuric acid VS cinye ta Samfurin (mL)
N = ainihin al'ada na baya titrant (mEq/ml)
F = ma'auni daidai, 66.07 mg/mEq
W = Nauyin Samfurin (mg)
Sharuɗɗan karɓa: 99.0% -100.5%
RASHIN ZUCIYA
• Ragowa akan ƙonewa <281>
Misali: 20 g
Sharuɗɗan karɓa: NMT 0.005%
Iyakar Al'amura marasa narkewa
Misali: 20 g
Nazari: Canja wurin Samfurin zuwa bulo mai rufi, kuma a narke cikin 200 ml na ruwa.Yi zafi zuwa tafasa, kuma dumi a kan wanka mai tururi na 1 h.Tace maganin zafi ta cikin gilashin gilashi tared na matsakaicin porosity (10-15 µm).A wanke beaker da tacewa da ruwan zafi, busar da ƙusa a 105, sanyaya a cikin injin bushewa, da awo.
Sharuɗɗan karɓa: NMT 1 MG na kwayoyin da ba a iya narkewa ana samun su (0.005%).
• Iyakar Phosphate
Daidaitaccen bayani na phosphate, Phosphate reagent A, da Fosphate reagent B: Shirya kamar yadda aka umarce shi don Phosphate a cikin Reagents a ƙarƙashin Reagents, Manuniya, da Magani-Gwamnatin Gwaje-gwaje don Reagents.
Misali: 4.0 g
Sarrafa: 0.2 ml na Standard phosphate bayani
Bincike
[Lura-Gwaje-gwaje don Samfurin da Sarrafa an yi su da kyau a cikin bututun kwatankwacin launi.]
Narkar da Samfurin a cikin 25 ml na 0.5 N sulfuric acid, ƙara 1 ml kowane na phosphate reagent A da Fosphate reagent B, kuma ba da damar tsayawa a dakin da zafin jiki na sa'o'i 2.Ci gaba tare da Sarrafa ta amfani da adadi iri ɗaya na reagents iri ɗaya kamar a cikin gwajin Samfurin.
Sharuɗɗan karɓa: Duk wani launin shuɗi da aka samu daga Samfurin bai kamata ya wuce wanda aka samar daga Control (NMT 5 ppm).
• Chloride da Sulfate, Chloride <221>
Madaidaicin maganin chloride: Canja wurin 165 MG na sodium chloride zuwa flask mai girma na 100-mL.Narke cikin kuma tsoma da ruwa zuwa girma.Canja wurin 10.0 ml zuwa 1000-mL flask volumetric, da kuma tsarma da ruwa zuwa girma don samun bayani yana da ƙwayar 10 μg/mL na chloride.
Sharuɗɗan karɓa: Sashin 2-g yana nuna babu ƙarin chloride fiye da daidai da 1.0 ml na daidaitaccen maganin chloride (NMT 5 ppm).
• Iyakar Nitrate
Daidaitaccen maganin nitrate da maganin Brucine sulfate: Shirya kamar yadda aka umurce nitrate a cikin Reagents a ƙarƙashin Reagents, Manuniya, da Gwaje-gwaje-Janar don Reagents.
Maganin samfurin: Narke 1.0 g a cikin 3 ml na ruwa ta dumama a cikin ruwan zãfi, da kuma ƙara Brucine sulfate bayani don yin 50 ml.
Maganin sarrafawa: Zuwa 1.0 ml na daidaitaccen maganin nitrate ƙara 1.0 g na ammonium nitrate, sannan ƙara maganin Brucine sulfate don yin 50 ml.
Blank: 50 ml na Brucine sulfate bayani
Nazari: Zafi Samfurin Maganin, Maganin Sarrafa, da Blank a cikin ruwan wanka mai tafasa na tsawon mintoci 15 tare da jujjuyawar lokaci-lokaci, sannan a kwantar da sauri a cikin wankan kankara zuwa zafin daki.Daidaita spectrophotometer mai dacewa tare da Blank zuwa abin sha a 410 nm.Ƙayyade shayar da Maganin Samfurin, lura da sakamakon, kuma daidaita kayan aiki tare da Samfurin bayani zuwa ɗaukar sifili.Ƙayyade shayarwar Maganin Sarrafa.
Sharuɗɗan karɓa: Karatun shayarwa don Maganin Samfurin bai wuce wancan ba don Maganin Sarrafa (NMT 10 ppm).
• Iron <241>
Maganin samfurin: Narke 2.0 g a cikin 40 ml na ruwa, kuma ƙara 2 ml na hydrochloric acid.
Sharuɗɗan karɓa: NMT 5 ppm
MAKAMMAN JARRABAWA
• Gwaje-gwajen Ƙididdigar Microbial <61> da Gwaje-gwaje don Ƙayyadaddun Kwayoyin Halitta <62>: Jimillar ƙididdige ƙananan ƙwayoyin cuta na aerobic bai wuce 1000 cfu/g ba, kuma jimillar ƙidayar ƙirƙira da yisti ba ta wuce 10 cfu/g ba.
pH <791>: 5.0-6.0 a cikin bayani (1 cikin 20)
KARIN BUKATA
• Marufi da Ajiya: Ajiye a cikin kwantena da aka rufe sosai.Babu buƙatun ajiya da aka ƙayyade.