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Kaliumhydrogensulfat

Potassium bisulfate

HCID 516920
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Grundinformationen

CAS
7646-93-7
Standard-SMILES
O=S(=O)([O-])O.[K+]
InChIKey
CHKVPAROMQMJNQ-UHFFFAOYSA-M
Summenformel
HKO4S
Durchschnittliche Molmasse
136,17 g/mol
Monoisotopische Masse
135,92326117

Namen und Bezeichner

Bevorzugter Name
Potassium bisulfate
IUPAC
potassium hydrogen sulfate
Lokaler Name
Kaliumhydrogensulfat
Englischer Name
Potassium bisulfate
Summenformel
HKO4S
Molmasse
136.16884

Namen und Synonyme

Potassium bisulfatePotassium hydrogen sulfate7646-93-7Sal enixumSulfuric acid, monopotassium saltCaswell No. 682CMonopotassium hydrogen sulfatePotassium hydrosulfate (KHSO4)Potassium hydrogen sulfate, solidEINECS 231-594-1UN2509EPA Pesticide Chemical Code 005605
Weitere Namen anzeigen
KHSO4POTASSIUM BISULPHATEPOTASSIUM HYDROGEN SULPHATEKaliumhydrogensulfatPOTASSIUM HYDROGEN SULPHATE puresalenixumPotassium bisuLmonopotassiumsulfate
NSC 409996UNII-1J1K03241FAI3-044591J1K03241FINS NO.515(II)DTXSID8047715POTASSIUM BISULFATE [MI]INS-515(II)

Datenbank-Bezeichner

CAS
7646-93-7
PubChem CID
516920
DTXSID
DTXSID8047715
UNII
1J1K03241F
EC Number
231-594-1
Nikkaji
J43.947I

Eigenschaften

Berechnete StruktureigenschaftenWird ergänzt

Polarare Oberfläche (TPSA)
85,8 Ų
H-Brücken-Donoren
1
H-Brücken-Akzeptoren
4
Frei drehbare Bindungen
0
Schwere Atome
6
Formalladung
0
Komplexität
93

Experimentelle und physikochemische Eigenschaften

Density · 2 Einträge

2.2 g/cm³

2.24 @25 °C

Solubility · 2 Einträge

Freely soluble in water, insoluble in ethanol

Solubility in water, g/100ml: 49 (very good)

Decomposition195-214 °C
Physical Description · 5 Einträge

Potassium hydrogen sulfate is a colorless crystalline solid with a sulfur odor. It may cause illness from ingestion. If heated to high temperatures it may emit toxic fumes. It is used to make fertilizers and wine.

Large Crystals; Other Solid; Dry Powder; Large Crystals

White deliquescent crystals, pieces or granules

White deliquescent solid; [Merck Index] Colorless to white hygroscopic solid; [ICSC]

COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS OR CRYSTALLINE POWDER.

Physikochemische Eigenschaften

Schmelzpunkt
214 °C · 214 °C(lit.)
Siedepunkt
93 · decomposes [STR93]
Dichte
2.32 g/mL · 2.32 g/mL at 25 °C(lit.)

Sicherheit und Regulatorisches

Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.

GHS-Klassifizierung

GHS Classification · 6 Einträge

Danger

H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation];H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

P260, P261, P264, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P319, P321, P363, P403+P233, P405, and P501 (click each P-code to see the statement)

Danger

Gefahrenhinweise

Regulatory Information · 6 Einträge

Chemical: Sulfuric acid, monopotassium salt

Regulation (EC) No 1333/2008 (amended)

Sulfuric acid, potassium salt (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Sulfuric acid, 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: 12-02-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/23635;Status: Active Update: 07-12-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/22889

Potassium hydrogen sulphate: Does not have an individual approval but may be used under an appropriate group standard

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

DOT LabelCorrosive
Fire Hazards · 3 Einträge

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Corrosives in contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. For electric vehicles or equipment, ERG Guide 147 (lithium ion or sodium ion batteries) or ERG Guide 138 (sodium batteries) should also be consulted. (ERG, 2024)

Chemie und Industrie

Verwendung und Herstellung

UsesUsed as a flux (ores and siliceous compounds) and cathartic; [Merck Index] Used to make fertilizers and wine; [CAMEO]
U.S. Production2023: 250,000 - <400,000 lb;2022: 550,000 - <700,000 lb;2021: 1,000,000 - <2,500,000 lb;2020: 4,000,000 - <5,500,000 lb
Consumer UsesSoil amendments (fertilizers)
Industry UsesSoil amendments (fertilizers)
Household ProductsInformation on 3 consumer products that contain Potassium hydrogensulphate in the following categories is provided:;• Commercial / Institutional;• Landscaping/Yard
Use ClassificationFood additives
General Manufacturing Information · 2 Einträge

Agriculture, Forestry, Fishing and Hunting

Sulfuric acid, potassium salt (1:1): ACTIVE

Darstellung

synthetischePotassium bisulfate is typically made by heating potassium sulfate (K2SO4) with sulfuric acid. The acid provides the hydrogen needed to convert the salt (K2SO4) to the corresponding acid salt (KHSO4).

Vor- und nachgelagerte Produkte

Vorgelagerte Rohstoffe

Sodium pyruvateKaliumsulfatSchwefelsure

Nachgelagerte Produkte

Zugehörige Reaktionen

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storage temp.
5 °C · Store at +5°C to +30°C.
Löslichkeit
2 O: · H2O: 1 M at 20 °C, clear, colorless
Aggregatzustand
Solid
Farbe
White
Wichte
2.322 · 2.322
PH
1 · 1 (50g/l, H2O, 20℃)
Wasserlöslichkeit
soluble
Merck
14 · 14,7613
Stabilität
Stable. Moisture sensitive.
InChI
1S/K.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+1;/p-1
InChIKey
CHKVPAROMQMJNQ-UHFFFAOYSA-M
SMILES
[K+].OS([O-])(=O)=O
CAS Datenbank
7646 · 7646-93-7(CAS DataBase Reference)
EPA chemische Informationen
Potassium bisulfate (7646-93-7)

· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.;· Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.).;· Corrosives in contact with metals may evolve flammable hydrogen gas.;· Containers may explode when heated.;· For electric vehicles or equipment, GUIDE 147 (lithium ion or sodium ion batteries) or GUIDE 138 (sodium batteries) should also be consulted.

Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.

Health Hazards · 2 Einträge

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental contamination. (ERG, 2024)

· TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury or death.;· Contact with molten substance may cause severe burns to skin and eyes.;· Avoid any skin contact.;· Fire may produce irritating, corrosive and/or toxic gases.;· Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental contamination.

Hazards SummaryReacts with water; A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; [ICSC] Causes burns; May cause respiratory irritation; [Aldrich MSDS]
DOT ID and Guide2509 154
Reactive GroupSalts, Acidic
EC ClassificationSymbol: C; R: 34-37; S: (1/2)-26-36/37/39-45
UN ClassificationUN Hazard Class: 8; UN Pack Group: II
Reactivity Profile · 1 Eintrag

Acidic salts, such as POTASSIUM HYDROGEN SULFATE, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.

Chemical DangersDecomposes on heating. This produces toxic fumes. Reacts with alcohols and water. The solution in water is a medium strong acid. Attacks many metals. This produces flammable/explosive gas (hydrogen - see ICSC 0001).
Packaging and LabellingUnbreakable packaging. Put breakable packaging into closed unbreakable container.

Sicherheit und Schutzausrüstung

Fire Fighting · 2 Einträge

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;SMALL FIRE: Dry chemical, CO2 or water spray.;LARGE FIRE: Dry chemical, CO2, alcohol-resistant foam or water spray. If it can be done safely, move undamaged containers away from the area around the fire. Dike runoff from fire control for later disposal.;FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Do not get water inside containers. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. (ERG, 2024)

In case of fire in the surroundings, use appropriate extinguishing media.

First Aid Measures · 4 Einträge

Fresh air, rest. Seek medical attention if you feel unwell.

First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention if skin irritation occurs.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Do NOT induce vomiting. Refer immediately for medical attention.

Accidental Release Measures · 2 Einträge

· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.;· Keep unauthorized personnel away.;· Stay upwind, uphill and/or upstream.;· Ventilate closed spaces before entering, but only if properly trained and equipped.

· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.;· Do not touch damaged containers or spilled material unless wearing appropriate protective clothing.;· Stop leak if you can do it without risk.;· Prevent entry into waterways, sewers, basements or confined areas.;· Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers.;· DO NOT GET WATER INSIDE CONTAINERS.

First Aid · 2 Einträge

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;Refer to the "General First Aid" section. Specific First Aid: For corrosives, in case of contact, immediately flush skin or eyes with running water for at least 30 minutes. Additional flushing may be required. (ERG, 2024)

General First Aid:;· Call 911 or emergency medical service.;· Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.;· Move victim to fresh air if it can be done safely.;· Administer oxygen if breathing is difficult.;· If victim is not breathing:;-- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.;-- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).;-- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.;· Remove and isolate contaminated clothing and shoes.;· For minor skin contact, avoid spreading material on unaffected skin.;· In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.;· For severe burns, immediate medical attention is required.;· Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed.;· Keep victim calm and warm.;· Keep victim under observation.;· For further assistance, contact your local Poison Control Center.;· Note: Basic Life Support (BLS) and Advanced Life Support (ALS) should be done by trained professionals.;Specific First Aid:;· For corrosives, in case of contact, immediately flush skin or eyes with running water for at least 30 minutes. Additional flushing may be required.

Safe StorageDry. Separated from strong bases, alcohols, metals and food and feedstuffs.
Exposure Control and Personal Protection · 1 Eintrag

· Wear positive pressure self-contained breathing apparatus (SCBA).;· Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE.;· Structural firefighters' protective clothing provides thermal protection but only limited chemical protection.

Nonfire Spill Response · 1 Eintrag

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2024)

Spillage DisposalPersonal protection: chemical protection suit and particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.
Isolation and Evacuation · 2 Einträge

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:;IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.;SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.;FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Immediate precautionary measure;· Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.;Spill;· For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.;· For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind direction, as necessary.;Fire;· If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.

Eye PreventionWear face shield or eye protection in combination with breathing protection.
Inhalation RiskA harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered.
Skin PreventionProtective gloves. Protective clothing.

Toxikologische Informationen

Adverse EffectsDermatotoxin - Skin burns.
Exposure RoutesThe substance can be absorbed into the body by inhalation of dust and by ingestion.
Signs and Symptoms · 4 Einträge

Cough. Sore throat.

Redness. Pain. Skin burns.

Redness. Pain. Severe deep burns.

Sore throat. Abdominal pain. Burning sensation. Shock or collapse.

Regulatorische Informationen

Regulatory Information · 6 Einträge

Chemical: Sulfuric acid, monopotassium salt

Regulation (EC) No 1333/2008 (amended)

Sulfuric acid, potassium salt (1:1) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Sulfuric acid, 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: 12-02-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/23635;Status: Active Update: 07-12-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/22889

Potassium hydrogen sulphate: Does not have an individual approval but may be used under an appropriate group standard

The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)

Sicherheitsdaten

F
3
wgk
1
tsca
TSCA listed
ridadr
UN 2509
hs_code
2833 29 80
RTECS-Nr.
TS7200000
risk_code
34-37
Toxizität
LD50 orally in Rabbit: 2340 mg/kg
hazard_code
C
safety_code
26-36/37/39-45
hazard_class
8
packing_group
II
Speicherklasse
8B - Non-combustible corrosive hazardous materials
Hazard Classifications
Eye Dam. 1Skin Corr. 1BSTOT SE 3
1-BROMO-4-(METHYLSULPHONYL)-2-NITROBENZENE4-Chlor-α-methylstyrolDinatrium-7-hydroxy-4-methylcumarinylphosphat2-Fluoropyridine-5-carboxaldehydeBis(8-hydroxychinolyl)sulfat, MonokaliumsalzTrioxysalen1-BOC-4-ETHYL-4-PIPERIDINECARBOXYLIC ACID2-Propenaltert-Butyl N-(2-bromoethyl)carbamatep-VinylphenolBoc-Lys(Boc)-OHSodium pyruvateCefpodoxime proxetilPOTASSIUM METABISULFITEBrenztraubensureN-Boc-D-prolineEthyl N-Boc-4-methylpiperidine-4-carboxylate2-SULFANYLISONICOTINIC ACIDTirofibanL-Methionin9-Vinylanthracenm-Chlorstyrol4-Acetoxystyrene