Potassium fluoride dihydrate
Potassium fluoride dihydrate
CAS: 13455-21-5
Molecular Formula: FH4KO2
Potassium fluoride dihydrate - Names and Identifiers
| Name | Potassium fluoride dihydrate |
| Synonyms | Potassium fluoride dihydrate Potassium fluoride hydrate, pure potassium fluoride dihydrate, puratronic POTASSIUMFLUORIDE,DIHYDRATE,CRYSTAL,REAGENT |
| CAS | 13455-21-5 |
| EINECS | 627-039-1 |
| InChI | InChI=1/FH.K.2H2O/h1H;;2*1H2/q;+1;;/p-1 |
Potassium fluoride dihydrate - Physico-chemical Properties
| Molecular Formula | FH4KO2 |
| Molar Mass | 94.13 |
| Density | 2,454 g/cm3 |
| Melting Point | 41°C(lit.) |
| Boling Point | 1505°C |
| Water Solubility | SOLUBLE |
| Vapor Presure | 24.5mmHg at 25°C |
| Appearance | Liquid |
| Specific Gravity | 2.454 |
| Color | Colorless |
| Exposure Limit | ACGIH: TWA 2.5 mg/m3NIOSH: IDLH 250 mg/m3 |
| Merck | 14,7632 |
| Storage Condition | Refrigerator (+4°C) |
| Stability | hygroscopic |
| Sensitive | Hygroscopic |
| Refractive Index | 1.352 |
| Use | Used as flux for silver welding and flux for metallurgical processing |
Potassium fluoride dihydrate - Risk and Safety
| Risk Codes | 23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. |
| Safety Description | S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 1812 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | TT0705000 |
| FLUKA BRAND F CODES | 3-10 |
| TSCA | T |
| HS Code | 28261990 |
| Hazard Note | Harmful |
| Hazard Class | 6.1 |
| Packing Group | III |
Potassium fluoride dihydrate - Nature
Open Data Verified Data
colorless monoclinic crystal or white crystalline powder. Deliquescence. Melting point 41 ℃; Boiling point 156 ℃;d 454. Soluble in water (18 ℃,349. 3G/lOOmL). The solution is alkaline. Insoluble in anhydrous ethanol. Corrosion of glass and ceramics.
Last Update：2025-06-10 22:55:16
Potassium fluoride dihydrate - Preparation Method
Open Data Verified Data
potassium hydroxide (or potassium carbonate) was dissolved in water, pure hydrogen fluoride was introduced, and the mixture was left to settle. After filtration, the filtrate was concentrated under vacuum and the crystals obtained were washed with a small amount of water. After recrystallization, potassium fluoride was obtained.
Last Update：2025-06-10 22:55:16
Potassium fluoride dihydrate - Application
Open Data Verified Data
analysis reagent, trace analysis of elements such as tantalum. They are also used as complexing agents, masking agents, bacterial inhibitors, and the like.
Last Update：2025-08-19 16:24:40
Potassium fluoride dihydrate - Safety
Open Data Verified Data
toxic; Has a stimulating effect on the skin and eyes. Staff should be well protected, if accidentally touch the eyes, should immediately rinse with a large amount of flowing water. The working environment should have good ventilation conditions. Store in a cool, dry warehouse. Avoid co-storage and transportation with food and acid and alkali substances.
Last Update：2025-06-10 22:55:16
Potassium fluoride dihydrate - Reference Information
| Application | used as flux for silver welding, flux for metallurgical processing |
Last Update：2024-04-10 22:29:15
Supplier List
Spot supply
Product Name: Potassium fluoride dihydrate Request for quotationCAS: 13455-21-5
Tel: 021-60556179
Email: 18721521379@163.com
Mobile: +86-18721521379
Wechat: 18721521379
Spot supply
Product Name: Potassium fluoride dihydrate Request for quotationCAS: 13455-21-5
Tel: +86-17505207175
Email: 3787852685@qq.com
Mobile: +86-17505207175
QQ: 3787852685
Wechat: chemical6666
Spot supply
Product Name: Potassium fluoride dihydrate Request for quotationCAS: 13455-21-5
Tel: +86-13776910623
Email: r@reformchem.com
Mobile: +86-13776910623
QQ: 3785839865
Wechat: chemical6666
Spot supply
Product Name: Potassium fluoride dihydrate Request for quotationCAS: 13455-21-5
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: Potassium fluoride solution Visit Supplier Webpage Request for quotationCAS: 13455-21-5
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328
WhatsApp: +86-18821248368
Spot supply
Product Name: Potassium fluoride dihydrate Visit Supplier Webpage Request for quotationCAS: 13455-21-5
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Spot supply
Product Name: Potassium fluoride dihydrate Request for quotationCAS: 13455-21-5
Tel: 021-60556179
Email: 18721521379@163.com
Mobile: +86-18721521379
Wechat: 18721521379
Spot supply
Product Name: Potassium fluoride dihydrate Request for quotationCAS: 13455-21-5
Tel: +86-17505207175
Email: 3787852685@qq.com
Mobile: +86-17505207175
QQ: 3787852685
Wechat: chemical6666
Spot supply
Product Name: Potassium fluoride dihydrate Request for quotationCAS: 13455-21-5
Tel: +86-13776910623
Email: r@reformchem.com
Mobile: +86-13776910623
QQ: 3785839865
Wechat: chemical6666
Spot supply
Product Name: Potassium fluoride dihydrate Request for quotationCAS: 13455-21-5
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: Potassium fluoride solution Visit Supplier Webpage Request for quotationCAS: 13455-21-5
Tel: +86-18821248368
Email: Int06@meryer.com
Mobile: +86-18821248368
QQ: 495145328
WhatsApp: +86-18821248368
Spot supply
Product Name: Potassium fluoride dihydrate Visit Supplier Webpage Request for quotationCAS: 13455-21-5
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
View History