12619
焦亚硫酸钾
puriss., meets analytical specification of Ph.Eur., BP, NF, FCC, E224, 95.0-101.0% (iodometric), powder, 51.8-57.6% sulfur dioxide
别名:
偏硫代硫酸钾, 偏重亚硫酸钾
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About This Item
线性分子式:
K2S2O5
CAS号:
分子量:
222.32
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.21
化驗:
95.0-101.0% (iodometric)
形狀:
powder
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等級
puriss.
品質等級
化驗
95.0-101.0% (iodometric)
形狀
powder
品質
meets analytical specification of Ph.Eur., BP, NF, FCC, E224
雜質
organic volatile impurities, complies (GC)
residual solvents, in accordance
≤0.001% heavy metals (as Pb)
≤0.08% thiosulfate (S2O3)
51.8-57.6% sulfur dioxide
pH值
3.5-4.5 (20 °C, 5%)
負離子痕跡
chloride (Cl-): ≤100 mg/kg
正離子痕跡
As: ≤2 mg/kg
Cu: ≤20 mg/kg
Fe: ≤10 mg/kg
Hg: ≤1 mg/kg
Pb: ≤2 mg/kg
Se: ≤5 mg/kg
Zn: ≤20 mg/kg
適合性
in accordance for appearance of solution
SMILES 字串
[K+].[K+].[O-]S(=O)S([O-])(=O)=O
InChI
1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
InChI 密鑰
RWPGFSMJFRPDDP-UHFFFAOYSA-L
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訊號詞
Danger
危險聲明
危險分類
Eye Dam. 1
安全危害
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 1
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Direct and efficient production of ethanol by fermentation from raw corn starch was achieved by using the yeast Saccharomyces cerevisiae codisplaying Rhizopus oryzae glucoamylase and Streptococcus bovis alpha-amylase by using the C-terminal-half region of alpha-agglutinin and the flocculation functional domain
Bindu Nair et al.
International journal of toxicology, 22 Suppl 2, 63-88 (2003-10-14)
Sodium Sulfite, Ammonium Sulfite, Sodium Bisulfite, Potassium Bisulfite, Ammonium Bisulfite, Sodium Metabisulfite, and Potassium Metabisulfite are inorganic salts that function as reducing agents in cosmetic formulations. All except Sodium Metabisulfite also function as hair-waving/straightening agents. In addition, Sodium Sulfite, Potassium
Gábor Vlád et al.
The Journal of organic chemistry, 67(18), 6550-6552 (2002-08-31)
A high-yield synthesis was developed for the preparation of 2,2'-bipyrimidine (1) using the Ullmann coupling of 2-iodopyrimidine. The new procedure was also used for the preparation of 4,4',6,6'-tetramethyl-2,2'-bipyrimidine (2) and 5,5'-dibromo-2,2'-bipyrimidine (3).
M Takahashi et al.
Japanese journal of cancer research : Gann, 77(2), 118-124 (1986-02-01)
Ethanol, potassium metabisulfite, formaldehyde and hydrogen peroxide were tested for tumor-promoting activity in a two-stage stomach carcinogenesis experiment. Male outbred Wistar rats were given N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) in the drinking water (100 mg/liter) and a diet supplemented with 10% sodium chloride
W H Yang et al.
CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 133(9), 865-867 (1985-11-01)
Sulfites are widely used as preservatives in the food and pharmaceutical industries. In the United States more than 250 cases of sulfite-related adverse reactions, including anaphylactic shock, asthmatic attacks, urticaria and angioedema, nausea, abdominal pain and diarrhea, seizures and death
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