Amonium Sulfate CAS 7783-20-2 Ihirangi 99.0~100.5%

(NH4)2SO4 132.14
Amonium Sulfate [7783-20-2].
WHAKAMAHI
Ko te Ammonium Sulfate he NLT 99.0% me te NMT 100.5% o (NH4)2SO4.
WHAKATAUTANGA
• A. Nga Whakamātautau Tautuhi-General, Ammonium <191>: Ko te otinga (1 i roto i te 20) ka tutuki nga whakaritenga.
• B. Nga Whakamatau Tautuhinga-General, Sulfate <191>: Ko te otinga (1 i roto i te 20) ka tutuki nga whakaritenga.
WHAKAMAHI
• Tikanga
Tauira: 2.5 g o te Ammonium Sulfate
Pūnaha Titrimetric
(Tirohia Titrimetry <541>.)
Aratau: Te titration toenga
Titrant: 1 N konutai waihā VS
Te titrant o muri: 1 N waikawa pungatara VS
Te kitenga ira mutunga: Colorimetric
Putea: 50.0 mL o te 1 N konutai waihā VS, ine tika
Tātaritanga: Tāpirihia te Tauira ki te ipu koeko 500-mL ka memeha ki te 50 mL wai.Taapirihia te 50.0 mL o te 1 N konutai waikawa VS, tuu he kohanga tātari ki te kaki o te ipu, ka kohuatia kia peia atu te haukini (mo te 10-15 meneti), ka whakatauhia ki te pepa litmus.Matao, tāpirihia te 0.15 mL o te thymol blue TS, ka whakatairitehia te taikaha konutai waihā ki te 1 N waikawa pungatara VS.Whakaritehia he whakatau patea.
Tātaihia te ōrau o te haukinia pūkawa ngāwha [(NH4)2SO4] i te Tauira i tangohia:
Hua = [(BV) × N × F ×100]/W
B = 1 N te waikawa pungatara VS i pau i te Patea (mL)
V = 1 N te waikawa pungatara VS i pau i te Tauira (mL)
N = te tikanga tuturu o te Titita Whakamuri (mEq/mL)
F = tauwehe taurite, 66.07 mg/mEq
W = te taumaha o te Tauira (mg)
Paearu whakaae: 99.0%-100.5%
NGA POKE
• Te toenga i runga i te mura <281>
Tauira: 20 g
Paearu whakaae: NMT 0.005%
• Te Tepe o te Mahinga Karekau
Tauira: 20 g
Tātaritanga: Whakawhitihia te Tauira ki te ipurau kapi, ka memeha ki te 200 mL wai.Whakawerahia ki te koropupu, ka whakamahana i runga i te pati mamaoa mo te 1 haora.Tātarihia te wairewa wera mā roto i te ipu karāhe tiitapahia o te porosity waenga (10-15 µm).Horoihia te ipurau me te tātari ki te wai wera, whakamarokehia te ipu i te 105, whakamatao i roto i te desiccator, ka paunatia.
Paearu whakaae: NMT 1 mg o te matū karekau ka kitea (0.005%).
• Tepe o te Phosphate
Wairewa Phosphate Paerewa, Phosphate Reagent A, Phosphate Reagent B: Whakaritea kia rite ki te tohutohu mo te Phosphate i roto i nga Reagents i raro i nga Reagents, Indicators, and Solutions—Whakamātautau Whanui mo nga Reagents.
Tauira: 4.0 g
Whakahaere: 0.2 mL o te wairewa phosphate Paerewa
Tātaritanga
[Tuhipoka-Ko nga whakamatautau mo te Tauira me te Mana ka mahia i roto i nga ngongo whakataurite-tae.]
Whakarewahia te Tauira ki te 25 mL o te waikawa pungatara 0.5 N, ka tapirihia te 1 mL ki ia reagent Phosphate A me te Phosphate reagent B, ka waiho kia tu ki te pāmahana rūma mo te 2 haora.Haere tonu ki te Mana ma te whakamahi i nga rahinga o nga reagents rite ki te whakamatautau mo te Tauira.
Paearu whakaae: Ko nga tae kahurangi i riro mai i te Tauira kaua e neke ake i tera i puta mai i te Mana (NMT 5 ppm).
• Chloride and Sulfate, Chloride <221>
Wairewa pūhaumāota paerewa: Whakawhitihia te 165 mg o te konutai pūhaumāota ki te ipu rōrahi 100-mL.Whakarewa ki roto ka waimeha ki te wai ki te rōrahi.Whakawhitihia te 10.0 mL ki te pounamu 1000-mL, ka whakahiatotia ki te wai ki te rōrahi kia whiwhi ai i te otinga he 10 µg/mL pūhaumāota te kukū.
Paearu whakaae: Ko te wahanga 2-g e whakaatu ana kaore e nui ake te hauota ki te 1.0 mL o te wairewa chloride Paerewa (NMT 5 ppm).
Te Tepe o te Nitrate
Wairewa pākawa Paerewa me te wairewa Brucine sulfate: Whakaritehia kia rite ki te whakahau mo te Nitrate i roto i nga Reagents i raro i nga Reagents, Tohu, me nga Whakataunga-General Tests mo nga Reagents.
Tauira otinga: Whakarewahia te 1.0 g ki te 3 mL wai ma te whakamahana i roto i te kaukau wai kohua, ka tapirihia te wairewa Brucine sulfate kia 50 mL.
Te otinga whakahaere: Ki te 1.0 mL o te wairewa pakawa Paerewa me tapirihia te 1.0 g o te haukinia pākawa, katahi ka tapirihia te wairewa Brucine sulfate kia 50 mL.
Patea: 50 mL o te otinga Brucine sulfate
Tātaritanga: Whakawerahia te Tauira otinga, te otinga Whakahaere, me te Patea ki roto i te kaukau wai kohua mo te 15 meneti me te wiri ngawari i ia wa, ka whakamatao tere i roto i te pati hukapapa ki te pāmahana rūma.Whakaritehia he inenga hihiko me te Patea ki te kore te mimiti i te 410 nm.Whakatauhia te ngongo o te Tauira otinga, tuhia te hua, me te whakatika i te taputapu me te Tauira otinga ki te kore te mimiti.Whakatauhia te mimiti o te otinga Mana.
Paearu whakaae: Ko te panui whakauru mo te otinga Tauira kaua e neke ake i tera mo te otinga Mana (NMT 10 ppm).
• Rino <241>
Tauira otinga: Whakarewahia te 2.0 g ki te 40 mL o te wai, me te taapiri i te 2 mL o te waikawa maaota.
Paearu whakaae: NMT 5 ppm
NGA WHAKAMATAUTANGA
• Nga Whakamātautau Whakatau Moroiti <61> me nga Whakamātautau mo nga Microorganisms Kua Tauwhāitihia <62>: Ko te tapeke moroiti aerobic e kore e neke ake i te 1000 cfu/g, a ko te tapeke o nga mahanga me te tatau rewena kaore e neke ake i te 10 cfu/g.
• pH <791>: 5.0-6.0 i roto i te otinga (1 i roto i te 20)
HE WHAKAMAHI ATU
• Te Whakapai me te Rokiroki: Whakaorangia ki roto i nga ipu kua kati pai.Kaore he whakaritenga rokiroki i tohua.