基本情報
- CAS
865-33-8- 標準SMILES
C[O-].[K+]- InChIKey
BDAWXSQJJCIFIK-UHFFFAOYSA-N- 分子式
- CH3OK
- 平均分子量
- 70.132 g/mol
- 単同位体質量
- 69.9820964
名称と識別子
- 優先名称
- Potassium methoxide
- IUPAC
- potassium methanolate
- 現地名
- メトキシカリウム
- 英語名
- Potassium methoxide
- 分子式
- CH3KO
- 分子量
- 70.13
名称と別名
Potassium methoxide865-33-8Potassium methanolatePotassium methylateMethanol, potassium salt45MYQ0GWGBMethanol, potassium salt (1:1)DTXSID1029627Methoxy potassiumRefChem:867893DTXCID509627212-736-1
名称をさらに表示
メトキシカリウムメタノール=カリウム塩カリウムメトキシドカリウムメタノラートカリウムメチラートカリウム＝メタノラートカリウムメトキシド 溶液カリウムメトキシド, 5% w/v in methanolpotassium methoxide solutionKaliummethanolatMethanol,potassiumsaltPotassiuM Methoxide 95%PotassiummethoxidesolidHPLC Potassium methoxidePotassium methoxide, 90+%Potassiummethoxide,95-99%
potassium;methanolateMFCD00012416METHOXYPOTASSIUMUNII-45MYQ0GWGBEC 212-736-1KOMeMeOKEINECS 212-736-1
データベース識別子
- CAS
865-33-8- PubChem CID
- 23664618
- DTXSID
DTXSID1029627- UNII
- 45MYQ0GWGB
- EC Number
- 212-736-1
- Nikkaji
- J195.129G
物性
構造計算による物性
- 極性表面積
- 23.1 Ų
- 水素結合供与体数
- 0
- 水素結合受容体数
- 1
- 回転可能結合数
- 0
- 重原子数
- 3
- 形式電荷
- 0
- 複雑度
- 4.8
実験および物理化学的性質
Chemical ClassesMetals -> Metal Alkoxides
LogP-0.74
Density1.7 g/cm³
SolubilitySolubility in water: reaction
Flash Point11 °C c.c.
Melting PointNo melting point; decomposes at >50 °C
Vapor Pressure
0.0000048 [mmHg]
Vapor pressure, Pa at 25 °C: (negligible)
Physical Description
Liquid
White to yellow hygroscopic solid; [Reference #1] Commercial products are powders or 32% solutions in methanol; [Reference #2] White powder; [Alfa Aesar MSDS]
WHITE-TO-YELLOW HYGROSCOPIC POWDER.
Autoignition Temperature>50 °C
物理化学的性質
- 融点
- -20 °C · -20°C
- 沸点
- 84 °C · 84°C
- 比重(密度)
- 0.95 g/mL · 0.95 g/mL at 20 °C
- 蒸気圧
- 0 Pa · 0Pa at 25℃
- 屈折率
- 20 · n20/D 1.37
- 闪点
- 7 °C · 7°C
- 貯蔵温度
- 30 °C · Store below +30°C.
- 溶解性
- メタノール、エタノールに可溶。
- 酸解離定数(Pka)
- 15.17 · 15.17[at 20 ℃]
- 外見
- 液体
- 色
- 無色透明
- 比重
- 0.95 · 0.95
- PH
- 12.8 · 12.8 (7g/l, H2O, 20℃)
- 水溶解度
- 分解する可能性があります
- BRN
- 3551544 · 3551544
- 安定性
- 安定。水と激しく反応する。湿気に敏感。空気中の二酸化炭素を吸収できます。酸、強力な酸化剤、酸塩化物、酸無水物、アルカリ金属とは混和しません。
- InChI
- 1S/CH3O.K/c1-2;/h1H3;/q-1;+1
- InChIKey
- BDAWXSQJJCIFIK-UHFFFAOYSA-N
- SMILES
- [K+].C[O-]
- CAS データベース
- 865 · 865-33-8(CAS DataBase Reference)
- EPAの化学物質情報
- Methanol, potassium salt (865-33-8)
化学的性質
化学的特性solid
安全と法規制
GHS分類
GHS Classification
Danger
H251: Self-heating; may catch fire [Danger Self-heating substances and mixtures]
P235, P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, P407, P410, P413, P420, and P501 (click each P-code to see the statement)
This chemical does not meet GHS hazard criteria for 0.4% (1 of 233) of reports.
Danger
H228 (50.6%): Flammable solid [Danger Flammable solids]
危険有害性情報
Regulatory Information
Chemical: Methanol, potassium salt
Methanol, potassium salt (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Methanol, potassium salt (1:1) 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)
Status: Active Update: 03-05-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/13210
Methanol, Potassium Salt: HSNO Approval: HSR007896 Approved with controls
Fire HazardsHighly flammable. Many reactions may cause fire or explosion. Risk of fire and explosion on contact with water, moisture or metals.
Hazards Summary
Rapidly and exothermically reacts with tissue water forming potassium hydroxide (responsible for corrosivity) and methanol; Not likely to cause skin sensitization or be carcinogenic; [OECD SIDS: Methanolates - 2006] Reacts violently with water; Self-heating, may catch fire; Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; [Alfa Aesar MSDS] See Methyl alcohol. See Potassium hydroxide. See Sodium methylate.
EC ClassificationSymbol: F, C; R: 11-14-34; S: (1/2)-8-16-26-43-45
UN ClassificationUN Hazard Class: 4.2; UN Subsidiary Risks: 8
Chemical Dangers
Heating may cause violent combustion or explosion. Reacts violently with water. This produces flammable methanol and corrosive potassium hydroxide. The substance may ignite spontaneously on contact with moist air. The substance is a strong reducing agent. It reacts violently with oxidants. The substance is a strong base. It reacts violently with acid and is corrosive. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001).
Packaging and LabellingAirtight. Unbreakable packaging. Put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs.
Hazard Classes and Categories
Flam. Sol. 1 (50.6%)
Self-heating substance or mixture - category 1
Self-heat. 1
安全と保護具
Fire FightingNO water. NO hydrous agents. Use dry powder, dry sand. In case of fire: keep cylinder cool by spraying with water. NO direct contact of the substance with water.
First Aid Measures
Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer immediately for medical attention.
First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer immediately for medical attention.
Rinse with plenty of water (remove contact lenses if easily possible). Refer immediately for medical attention.
Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention.
Safe StorageFireproof. Separated from strong oxidants, acids, metals and food and feedstuffs. Dry. Cool. Well closed. Store in an area having corrosion resistant concrete floor. Store in an area without drain or sewer access.
Spillage Disposal
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Sweep spilled substance into covered dry plastic containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT wash away into sewer.
Eye PreventionWear face shield or eye protection in combination with breathing protection.
Fire PreventionNO open flames, NO sparks and NO smoking. NO contact with water.
Inhalation RiskA harmful concentration of airborne particles can be reached quickly when dispersed.
Skin PreventionProtective gloves. Protective clothing.
Exposure PreventionAVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!
Ingestion PreventionDo not eat, drink, or smoke during work.
Inhalation PreventionUse local exhaust and breathing protection.
Effects of Short Term ExposureThe substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest.
毒性情報
Adverse EffectsDermatotoxin - Skin burns.
Exposure RoutesSerious local effects by all routes of exposure.
Signs and Symptoms
Sore throat. Cough. Burning sensation. Shortness of breath. Laboured breathing.
Redness. Pain. Serious skin burns.
Redness. Pain. Blurred vision. Severe deep burns.
Burns in mouth and throat. Burning sensation in the throat and chest. Shock or collapse.
ICSC Environmental DataThis substance may be hazardous to the environment. Special attention should be given to aquatic organisms.
安全データ
- F
- 3-10-23
- wgk
- 1
- tsca
- TSCA listed
- ridadr
- UN 3274 3/PG 2
- hs_code
- 29051900
- risk_code
- 11-14-34-67-65-63-48/20-39/23/24/25-38-23/24/25
- 化審法
- 新規公示化学物質（2011年3月31日以前届出）
- hazard_code
- F,T,C
- safety_code
- 8-16-26-43-45-62-46-36/37/39-33-29-25
- hazard_class
- 4.2
- packing_group
- II
- 自然発火温度
- 30 - 50 °C
- Hazard Classifications
- Self-heat. 1Skin Corr. 1B
- ストレージクラス
- 4.2 - Pyrophoric and self-heating hazardous materials
化学と産業
用途と製造
UsesUsed as a chemical intermediate and in biodiesel production; [OECD SIDS: Methanolates - 2006]
U.S. Production2023: <50,000 lb
Industry UsesIntermediate
General Manufacturing Information
All Other Chemical Product and Preparation Manufacturing
Methanol, potassium salt (1:1): ACTIVE
応用分野
使用Potassium methoxide is used as a chemical intermediate. It is also used in biodiesel production and in fuel additives. It acts as a catalyst for the preparation of methyl formate and an alkaline catalyst for dimethyl formamide. Further, it is used as versatile reagents in chemical reactions such as condensation, esterification, alkoxylation and etherification, Claisen condensation, Wolf-Kishner reduction and Stobbe reaction.
上流・下流製品情報
上流原料
下流製品
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