Acesulfame K CAS 55589-62-3 Acesulfame Potassium Purity >99.0% (HPLC)

HOAKAKA
Loaʻa i ka Acesulfame Potassium ka NLT 99.0% a me ka NMT 101.0% o C4H4NO4SK, i helu ʻia ma ke kumu maloʻo.
IKE
• A. KA PALAPALA INFRARED <197K>
• B. NA HOAO IKE-KE ANOAI, Potasuma <191>
Haʻina hoʻohālike: 100 mg/mL
Paʻa ʻae ʻia: Hoʻokō i nā koi
HANA
• HANA
Laʻana: 150 mg
Pūnaehana Titrimetric (E nānā i ka Titrimetry <541>)
Ke ʻano: Hoʻohālikelike pololei
Titrant: 0.1 N perchloric acid VS
Palekana: 50 mL o ka ʻakika acetic glacial
ʻImi hope: Potentiometric
Nānā: E hoʻoheheʻe i ka Laʻana ma 50 mL o ka waikawa acetic glacial.
Titrate me 0.1 N perchloric acid VS.Hana i kahi hoʻoholo hakahaka.
E helu i ka pākēneka o ka potasiuma acesulfame (C4H4NO4SK) ma ka Laʻana:
Ka hopena = [(V − B) × N × F × 100]/W
V = ka nui titrant i hoʻohana ʻia e ka Laʻana (mL)
B = ka nui titrant i hoʻopau ʻia e ka Blank (mL)
N = titrant maʻamau maoli (mEq/mL)
F = helu kaulike, 201.2 mg/mEq
W = ke kaumaha o ka Laʻana (mg)
Nā pae ʻae ʻae: 99.0%–101.0% ma ke kumu maloʻo
NA mea haumia
• KA LIMIT O FLUORIDE
[NOTE-E hoʻohana i ka plasticware i kēia hoʻāʻo.]
Pane A: E hoʻoheheʻe i 210 g o ka citric acid monohydrate i 400 mL o ka wai.Hoʻoponopono me ka amonia paʻa i kahi pH o 7.0, a hoʻoheheʻe me ka wai i 1000 mL.
Pane B: 132 mg/mL o ka ammonium phosphate dibasic
Pane C: No ka hoʻokuʻu ʻia ʻana o 292 g o ka waikawa edetic i 500 mL o ka wai, e hoʻohui i 200 mL o ka ammonium hydroxide, hoʻoponopono me ka ammonium hydroxide i ka pH ma waena o 6 a me 7, a hoʻoheheʻe me ka wai e lilo i 1000 mL.
ʻO ka hoʻonā hoʻopaʻa: Hoʻohui i nā puke like o ka Solution A, Solution B a me ka Solution C, a hoʻoponopono me ka ammonium hydroxide i kahi pH o 7.5.
Haʻina waiwai maʻamau: Kauona 0.442 g o ka sodium fluoride, maloʻo mua ma 300° no 12 h, i loko o ka 1-L volumetric ipu, a dilute me ka wai i ka nui.E mālama i ka hopena i loko o kahi pahu plastik i pani ʻia.Ma mua koke o ka hoʻohana ʻana, e hoʻoinu i 5 mL o kēia hopena i loko o kahi pahu volumetric 100-mL, a hoʻoheheʻe ʻia me ka wai i ka nui.Loaʻa i kēlā me kēia mL o kēia hopena he 10µg o ka ion fluoride.
Haʻina maʻamau A: E hoʻohui i 0.5 mL o ka wai hoʻonā maʻamau a me 15.0 mL o ka solution Buffer, a hoʻoheheʻe ʻia me ka wai i 50mL.
Haʻina maʻamau B: E hoʻohui i 1.0 mL o ka solution stock Standard a me 15.0 mL o Buffer solution, a hoʻoheheʻe me ka wai i 50mL.
Haʻina maʻamau C: E hoʻohui i 1.5 mL o ka mea hoʻonā waiwai maʻamau a me 15.0 mL o ka solution Buffer, a hoʻoheheʻe me ka wai i 50mL.
Haʻina maʻamau D: E hoʻohui i 3.0 mL o ka solution stock Standard a me 15.0 mL o Buffer solution, a hoʻoheheʻe me ka wai i 50mL.
Laʻana hoʻonā: E hoʻohui i 3 g o Acesulfame Potassium i loko o kahi pahu volumetric 50-mL.E hoʻoheheʻe i ka wai, e hoʻohui i 15.0 mL o ka hopena Buffer, a hoʻoheheʻe me ka wai i ka nui.
Kānāwai
Nā Laʻana: Haʻina maʻamau A, Haʻina maʻamau B, Haʻina maʻamau C, Haʻina maʻamau D, a me ka hāʻina laʻana
E ana like i ka hiki (e nānā i ka Titrimetry <541>) ma ka mV, o nā mea hoʻonā maʻamau a me ka solution Sample, me kahi mika pH kūpono i hoʻolako ʻia me ka electrode kikoʻī fluoride a me kahi electrode kuhikuhi chloride kālā.I ka lawe ʻana i nā ana, e hoʻoneʻe i ka hopena i kahi beaker 25-mL, a hoʻokomo i nā electrodes.E hoʻokomo i ka pahu hoʻoulu polytef i loko o ka beaker, e kau i ka beaker ma luna o ka mea hoʻoheheʻe magnetic me ka mea i hoʻopaʻa ʻia ma luna a e hoʻokuʻu a hiki i ka loaʻa ʻana o ke kaulike (1-2 min).Holoi, a hoʻomaloʻo i nā electrodes ma waena o nā ana, e mālama pono i ʻole e ʻoki i ke aniani i loko o ka electrode ion fluoride-specific.E ana i ka hiki o kēlā me kēia ʻano hoʻonā maʻamau, a e kau i ka ʻike fluoride, ma µg/mL, me ka hiki, ma mV, ma ka pepa semilogarithmic.E ana i ka hiki o ka Haʻina Haʻina, a e hoʻoholo i ka neʻe ʻana o ka fluoride mai ka pihi maʻamau, ma µg/mL.
E helu i ka maʻiʻo, i ka ppm, o ka fluoride ma ka ʻāpana o ka Acesulfame Potassium i lawe ʻia:
Ka hopena = (V × C/W)
V = ka nui o ka hāʻina hāpana (mL)
C = ka neʻe ʻana o ka fluoride i loko o ka hāʻina Laʻana, mai ka pā maʻamau (mg/mL)
W = kaumaha o Acesulfame Potassium i lawe ʻia no ka hoʻomākaukau ʻana i ka hāpana Laʻana (g)
Nā pae ʻae ʻae: NMT 3 ppm
• NA METAL HEAVY, Hana I <231>: NMT 10 ppm
• HOOMAEMAE KROMATOGRAPHIC
Pane A: 3.3 mg/mL o ka tetrabutylammonium hydrogen sulfate
Māhele kelepona: Acetonitrile a me ka Solution A (2:3)
ʻO ka hoʻonā kūpono o ka ʻōnaehana: 2 µg/mL kēlā me kēia USP Acesulfame Potassium RS a me ka ethylparaben
Haʻina maʻamau: 0.2 µg/mL o USP Acesulfame Potassium RS
Haʻina hoʻohālike: 10 mg/mL
Pūnaehana Chromatographic
(E nana Chromatography <621>, Pūnaehana Pono.)
Ke ano: LC
ʻIke: UV 227 nm
kolamu: 4.6-mm × 25-cm;5-µm paʻi L1
Kahe kahe: 1 mL / min
Ka nui o ka hoʻopio: 20 µL
Kūpono ʻōnaehana
Laʻana: Haʻina kūpono ʻōnaehana
Nā koi kūpono
Hoʻoholo: NLT 2 ma waena o acesulfame potassium a me ethylparaben
Kānāwai
Nā Laʻana: Haʻina maʻamau a me ka hāʻina Laʻana
E hoʻopaʻa i nā chromatograms no ka manawa holo NLT 3 manawa i ka manawa paʻa o ka acesulfame potassium peak, a e ana i nā pane ʻāpana o nā piko.
Paʻa ʻae ʻae: ʻAʻole i ʻoi aku ka pane o kekahi peak i kahi manawa paʻa ma mua o ka acesulfame potassium mai ka Sample solution i ka pane o ka acesulfame potassium peak mai ka solution Standard (0.002%).
NA HOAO KUAI
• KA HIKI A I OLE ALKALINITE
Laʻana hoʻonā: 4.0 g i 20 mL o ka wai kalapona ʻole
Nānā: Hoʻohui i 0.1 mL o bromothymol blue TS.Inā melemele ka hoʻonā, e hoʻokaʻawale me 0.01 N sodium hydroxide e hana i kahi waihoʻoluʻu polū.Inā he polū ka hoʻonā, e hoʻokaʻawale me ka waika hydrochloride 0.01 N e hana i kahi waihoʻoluʻu melemele.
Nā pae ʻae ʻae: NMT 0.2 mL o 0.01 N sodium hydroxide a i ʻole NMT 0.2 mL o 0.01 N hydrochloric acid.
• NALO MA KA HOOMALOO <731>: E hoomaloo i kekahi laana ma 105° no 3 mau hola: nalowale NMT 1.0% o kona kaumaha.
NA KOI HOU
• PACKAGING a me ka mālama ʻana: mālama i loko o kahi pahu paʻa maikaʻi, a pale i ka mālamalama.E mālama i ka lumi wela.
USP REFERENCE STANDARD <11>
USP Acesulfame Potassium RS