Iodine CAS 7553-56-2 Purity ACS ≥99.8%

Iodine
I2 253.81
Iodine [7553-56-2].
HOAKAKA
Loaʻa i ka Iodine ka NLT 99.8% a me ka NMT 100.5% o I.
IKE
• A. He waihoʻoluʻu viole nā ​​hāʻina (1 i ka 1000) i loko o ka chloroform a me ka carbon disulfide.
• B.
Nānā: E hoʻohui i ka starch-potassium iodide TS i loko o kahi hopena saturated.
Nā pae ʻae ʻae: Hana ʻia kahi kala polū.Ke hoʻolapalapa ʻia ka hui ʻana, nalowale ke kala akā e ʻike hou ʻia i ka wā e maʻalili ai ka hui ʻana, ke ʻole i hoʻolapalapa ʻia i ka wā lōʻihi.
HANA
• Kaʻina hana
Laʻana: 500 mg o ka pauka Iodine
Nānā: E hoʻokomo i ka Laʻana i loko o ka ipu aniani, hoʻokomo i ka pahu, a hoʻohui i 1 g o ka potassium iodide i hoʻoheheʻe ʻia i loko o 5 mL o ka wai.E hoʻoheheʻe me ka wai a hiki i 50 mL, e hoʻohui i 1 mL o 3 N hydrochloric acid, a e hoʻokaʻawale me 0.1 N sodium thiosulfate VS, e hoʻohui i 3 mL o ka starch TS i ke kokoke ʻana i ka hopena.ʻO kēlā me kēia mL o 0.1 N sodium thiosulfate ua like ia me 12.69 mg o Iodine (I).
Nā mea e ʻae ai: 99.8%-100.5%
NA mea haumia
• Ka palena o Chloride a i ole Bromide
Laʻana hoʻonā: Triturate 250 mg o Iodine pauda maikaʻi me 10 mL o ka wai, a kānana i ka hopena.
Ka Hoʻopili: E hoʻohui i ka hāpana laʻana, dropwise, sulfurous acid (free from chloride), i hoʻoheheʻe mua ʻia me nā nui o ka wai, a hiki i ka nalo ʻana o ke kala iodine.E hoʻohui i 5 mL o 6 N ammonium hydroxide, a ukali ʻia e 5 mL o ke kālā nitrate TS ma nā ʻāpana liʻiliʻi.E kānana, a hoʻokaʻina i ka filtrate me ka waikawa nitric.
Paʻa ʻae: ʻAʻole ʻoi aku ka ʻino o ka wai i loaʻa ma mua o ka mana i hana ʻia me nā nui like o nā reagents like i hoʻohui ʻia ai ka 0.10 mL o 0.020 N hydrochloric acid, ka ʻakika sulfurous e waiho ʻia (0.028% me ka chloride).
• Ka palena o ke koena nonvolatile
Nānā: E kau i ka 5.0 g i loko o kahi kīʻaha porcelain, e wela ma ka ʻauʻau mahu a hiki i ka hoʻokuʻu ʻia ʻana o ka iodine, a maloʻo i 105 no 1 hola.
Paʻa ʻae: NMT 0.05% o ke koena i koe.
NA KOI HOU
• Hoʻopili a me ka waiho ʻana: mālama i loko o nā pahu paʻa.