基本情報
- CAS
10294-66-3- 標準SMILES
O=S([O-])([O-])=S.[K+].[K+]- InChIKey
FGRVOLIFQGXPCT-UHFFFAOYSA-L- 分子式
- K2O3S2
- 平均分子量
- 190.33 g/mol
- 単同位体質量
- 189.8562992
名称と識別子
- 優先名称
- Potassium thiosulfate
- IUPAC
- dipotassium;dioxido-oxo-sulfanylidene-λ6-sulfane
- 現地名
- チオ硫酸二カリウム
- 英語名
- Potassium thiosulfate
- 分子式
- H3KO3S2
- 分子量
- 154.24
名称と別名
Potassium thiosulfate10294-66-3Thiosulfuric acid (H2S2O3), dipotassium saltUK1TD58L5ODIPOTASSIUM THIOSULFATEDTXSID70893108RefChem:175627DTXCID601323053233-666-8POTASSIUMTHIOSULFATEPotassium Hyposulfitepotassium sulfothioate
名称をさらに表示
チオ硫酸二カリウムチオ硫酸カリウムチオ硫酸カリウム(無水)3-スルファニリデン-2,4-ジオキサ-3λ6-チア-1,5-ジポタッサペンタン-3-オンpotassium thiosulphatePotassium thiosulfat6. Potassium thiosulfatePotassium thiosulfate,98%PotassiumThiosulfateK2S2O3PotassiuM thiosulfate >=95%Potassium thiosulfate,AR,98%
Thiosulfuric Acid, Dipotassium SaltDipotassium sulfurothioatedipotassium;dioxido-oxo-sulfanylidene-lambda6-sulfaneMFCD00036292POTASSIUM THIOSULFATE ANHYDROUSUNII-UK1TD58L5OEINECS 233-666-8EC 233-666-8
データベース識別子
- CAS
10294-66-3- PubChem CID
- 61501
- DTXSID
DTXSID70893108- UNII
- UK1TD58L5O
- EC Number
- 233-666-8
- Nikkaji
- J47.982I
物性
構造計算による物性
- 極性表面積
- 104 Ų
- 水素結合供与体数
- 0
- 水素結合受容体数
- 4
- 回転可能結合数
- 0
- 重原子数
- 7
- 形式電荷
- 0
- 複雑度
- 82.6
実験および物理化学的性質
Chemical ClassesOther Classes -> Sulfur Compounds
Physical Description
Liquid
Colorless hygroscopic solid; [Merck Index] White crystalline solid; [Sigma-Aldrich MSDS]
物理化学的性質
- 比重(密度)
- 1.484 g/mL · 1.484 g/mL at 25 °C
- 溶解性
- insoluble in ethanol
- 外見
- 無色の吸湿性結晶
- 色
- colorless hygroscopic crystals, crystalline
- 水溶解度
- 2 O · H2O (g/100g): 96.1(0℃), 165.0(25℃), 312.0(90℃); 固相, K2S2O3・2H2O(0℃), 3K2S2O3・5H2O(25℃), K2S2O3(90℃)[ KRU93]; アルコールに不溶 [MER06]
- Merck
- 13 · 13,7777
- 安定性
- 安定。強酸、強酸化剤とは相容れない。
- InChI
- InChI=1S/K.H2O3S2.H/c;1-5(2,3)4;/h;(H2,1,2,3,4);
- InChIKey
- CCCGVZRBXSJUOU-UHFFFAOYSA-N
- SMILES
- S(S)(O)(=O)=O.[KH]
- CAS データベース
- 10294 · 10294-66-3(CAS DataBase Reference)
- EPAの化学物質情報
- Thiosulfuric acid (H2S2O3), dipotassium salt (10294-66-3)
安全と法規制
安全情報は参考情報です。供給元の安全データシート（SDS）、適用法令、専門家による評価に代わるものではありません。
GHS分類
GHS Classification
This chemical does not meet GHS hazard criteria for 23.8% (161 of 677) of reports.
Warning
H315 (76.2%): Causes skin irritation [Warning Skin corrosion/irritation]
P264, P264+P265, P280, P302+P352, P305+P351+P338, P321, P332+P317, P337+P317, and P362+P364 (click each P-code to see the statement)
Aggregated GHS information provided per 677 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
危険有害性情報
Regulatory Information
Chemical: Thiosulfuric acid (H2S2O3), dipotassium salt
Thiosulfuric acid (H2S2O3), potassium salt (1:2) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Thiosulfuric acid (H2S2O3), potassium salt (1:2) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
REACH registered substance: Potassium thiosulphate (EC: 233-666-8)
Thiosulfuric acid (H2S2O3), dipotassium salt: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Hazards SummaryA skin and strong eye irritant; [Sigma-Aldrich MSDS] See Sodium thiosulfate.
Hazard Classes and CategoriesSkin Irrit. 2 (76.2%)
安全データ
- wgk
- 3
- tsca
- TSCA listed
- risk_code
- 36/38
- hazard_code
- Xi
- safety_code
- 26-36
- ストレージクラス
化学と産業
用途と製造
Uses
Used in photographic developing; [REPROTOX] Used to make fertilizers, large scale and fine chemicals, computer-electronic-optical products, and in the health services industry; [ExPub: ECHA REACH Registrations]
Photographic Processing [Category: Other]
U.S. Production2023: 100,000,000 - <250,000,000 lb
Consumer UsesSoil amendments (fertilizers)
Industry UsesSoil amendments (fertilizers)
General Manufacturing Information
Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing
Thiosulfuric acid (H2S2O3), potassium salt (1:2): ACTIVE
応用分野
用途カリウムチオ硫酸塩は農業写真化学工業など様々な分野で幅広く使用されています特に農業分野では肥料としての利用が知られており植物の成長を促進する重要な栄養素を提供しますまた写真分野ではフィルムの現像過程で固定剤として使用されることがありますこれはカリウムチオ硫酸塩が不要なハロゲン化銀を溶解させる能力によるものです
説明Potassium thiosulfate (KTS) is a liquid fertilizer that supplies potassium and sulfur. Potassium thiosulfate is a neutral to basic, chloride-free, clear, liquid solution that can be applied through fertigation alone or in liquid blends with urea solution, urea ammonium nitrate solutions, and 10-34-0. Very dilute potassium thiosulfate can be used as a foliar fertilizer on certain plants, but is known to cause phytotoxicity symptoms under certain conditions and should be used with caution. Potassium thiosulfate is pH sensitive and becomes unstable at pH below 5.5 and above 8.5. The elemental sulfur in thiosulfate will oxidize and generate sulfuric acid that can lower soil and media pH. Greenhouse and nursery managers should use caution when applying potassium thiosulfate to unbuffered soilless media.
使用Potassium thiosulfate can be used:For the preparation of aqueous biphasic systems (ABS) for the extraction of organic compounds.For the synthesis of polyacrylonitrile nanoparticles by dispersion/emulsion polymerization.As a reagent for the pretreatment of graphite powder to synthesize graphene oxide from it by Hummers′ method.As an initiator to synthesize organosilicon-based adsorbent to remove iron from crude phosphoric acid.
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