碳酸钾倍半水合物 | 6381-79-9

• 物质功能分类: 无机化工 - 无机盐 - 碳化物及碳酸盐
• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 有机碳酸及其衍生物
• 中文名称: 碳酸钾倍半水合物
• 中文别名: 结晶碳酸钾；倍半水合碳酸钾；碳酸钾半水；碳酸钾一点五水合物；碳酸钾 半水
• CAS: 6381-79-9
• 化学式: CH4KO4
• 分子量: 119.14
• InChiKey: JIZADEJJTWPJSR-UHFFFAOYSA-N

物化性质

• 熔点：
  891 °C
• 密度：
  2.043
• 溶解度：
  1300g/l
• LogP：
  -0.809 (est)
• 稳定性/保质期：
  1. 常温常压下稳定，为白色结晶。 2. 极易吸湿，在空气中会与二氧化碳和水反应生成碳酸氢钾。

计算性质

• 辛醇/水分配系数(LogP)：
  -0.98
• 重原子数：
  6
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  58.5
• 氢给体数：
  3
• 氢受体数：
  4

安全信息

• TSCA：
  Yes
• 危险品标志：
  Xn
• 安全说明：
  S26
• 危险类别码：
  R36/38,R22
• WGK Germany：
  1
• 海关编码：
  28364000

SDS

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Section 1. Chemical Product and Company Identification
Potassium carbonate Sesquihydrate
Common Name/
Trade Name
Manufacturer
Commercial Name(s)
Synonym
Chemical Name
Chemical Family
Potassium carbonate Sesquihydrate
CARCINOGENIC EFFECTS: Not available.
Potential Chronic Health
Effects MUTAGENIC EFFECTS: Not available.
TERATOGENIC EFFECTS: Not available.
DEVELOPMENTAL TOXICITY: Not available.
The substance is toxic to mucous membranes.
The substance may be toxic to skin, eyes.
Repeated or prolonged exposure to the substance can produce target organs damage. Repeated exposure of the
eyes to a low level of dust can produce eye irritation. Repeated skin exposure can produce local skin destruction,
or dermatitis. Repeated inhalation of dust can produce varying degree of respiratory irritation or lung damage.

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Section 4. First Aid Measures
Eye Contact Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at
least 15 minutes. Cold water may be used. Get medical attention immediately.
Skin Contact In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated
clothing and shoes. Cover the irritated skin with an emollient. Cold water may be used.Wash clothing before
reuse. Thoroughly clean shoes before reuse. Get medical attention immediately.
Serious Skin Contact Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek immediate
medical attention.
Inhalation If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get
medical attention immediately.
Serious Inhalation Not available.
Ingestion Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an
unconscious person. If large quantities of this material are swallowed, call a physician immediately. Loosen tight
clothing such as a collar, tie, belt or waistband.
Serious Ingestion Not available.

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Section 5. Fire and Explosion Data
Flammability of the Product Non-flammable.
Auto-Ignition Temperature Not applicable.
Flash Points Not applicable.
Flammable Limits Not applicable.
Products of Combustion Not available.
Fire Hazards in Presence of Not applicable.
Various Substances
Explosion Hazards in Presence Risks of explosion of the product in presence of mechanical impact: Not available.
of Various Substances Risks of explosion of the product in presence of static discharge: Not available.
Fire Fighting Media Not applicable.
and Instructions
Special Remarks on Not available.
Fire Hazards
Special Remarks on Explosion Not available.
Hazards
Potassium carbonate Sesquihydrate

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Section 6. Accidental Release Measures
Small Spill Use appropriate tools to put the spilled solid in a convenient waste disposal container. If necessary: Neutralize
the residue with a dilute solution of acetic acid. Finish cleaning by spreading water on the contaminated
surface and dispose of according to local and regional authority requirements.
Large Spill Corrosive solid.
Stop leak if without risk. Do not get water inside container. Do not touch spilled material. Use water spray to
disposal. Neutralize the residue with a dilute solution of acetic acid. Finish cleaning by spreading water on the
contaminated surface and allow to evacuate through the sanitary system.

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Section 7. Handling and Storage
Precautions Keep container dry. Do not ingest. Do not breathe dust. Never add water to this product. In case of insufficient
ventilation, wear suitable respiratory equipment. If ingested, seek medical advice immediately and show the
container or the label. Avoid contact with skin and eyes. Keep away from incompatibles such as oxidizing agents,
metals, acids.
Storage Keep container tightly closed. Keep container in a cool, well-ventilated area. Do not store above 25°C (77°F).

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Section 8. Exposure Controls/Personal Protection
Engineering Controls Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below
recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to
airborne contaminants below the exposure limit.
Personal Protection Splash goggles. Synthetic apron. Vapor and dust respirator. Be sure to use an approved/certified respirator or
equivalent. Gloves.
Personal Protection in Case of Splash goggles. Full suit. Vapor and dust respirator. Boots. Gloves. A self contained breathing apparatus
a Large Spill should be used to avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a
specialist BEFORE handling this product.
Exposure Limits Not available.

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Section 9. Physical and Chemical Properties
Physical state and appearance Solid. (Powdered solid. Deliquescent solid.) Odor Odorless.
Taste Not available.
165.23 g/mole
Molecular Weight
Color White.
pH (1% soln/water) 11.6 [Basic.]
Boiling Point Decomposes.
Melting Point 891.11°C (1636°F)
Critical Temperature Not available.
Specific Gravity Not available.
Not applicable.
Vapor Pressure
Vapor Density Not available.
Volatility Not available.
Odor Threshold Not available.
Water/Oil Dist. Coeff. Not available.
Not available.
Ionicity (in Water)
Dispersion Properties See solubility in water.
Soluble in cold water.
Solubility
Potassium carbonate Sesquihydrate

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Section 10. Stability and Reactivity Data
The product is stable.
Stability
Instability Temperature Not available.
Dust generation, moist air, water, incompatible materials.
Conditions of Instability
Reactive with oxidizing agents, metals, acids.
Incompatibility with various
Slightly reactive to reactive with moisture.
substances
Corrosivity Non-corrosive in presence of glass.
Special Remarks on Reacts with water to evolve heat.
Reactivity When it contains the full amount of water it is not hygroscopic.
Incompatible with KCO, chlorine trifluoride, calcium oxide, and magnesium
Not available.
Special Remarks on
Corrosivity
Polymerization Will not occur.

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Section 11. Toxicological Information
Routes of Entry Eye contact. Inhalation. Ingestion.
Toxicity to Animals Acute oral toxicity (LD50): 1870 mg/kg [Rat ].
Chronic Effects on Humans Causes damage to the following organs: mucous membranes.
May cause damage to the following organs: skin, eyes.
Other Toxic Effects on
Extremely hazardous in case of skin contact (corrosive), of inhalation (lung corrosive).
Humans Hazardous in case of skin contact (irritant), of ingestion, .
Slightly hazardous in case of eye contact (corrosive).
Special Remarks on Not available.
Toxicity to Animals
Special Remarks on Not available.
Chronic Effects on Humans
Special Remarks on other Acute Potential Health Effects:
Toxic Effects on Humans Skin: Causes severe skin irritation.
Eyes: It is severely irritating to the eyes and its mucous membranes. It may cause corneal injury. It may cause
burns and loss of vision. It may cause permanent damage. The amount of tissue damage depends on the length
of contact.
Ingestion: It causes gastrointestinal irritation with nausea, vomiting, abdominal pain, swollen glottis, increased
respiration, and possible burns to the lips, tongue, oral mucosa, hypopharynx, stomach, or esophagus. It may
affect the cardiovascular system(circulatory collapse), urinary system, and metabolism.
Inhalation: Causes respiratory tract and mucous membrane irritation. Exposure can cause coughing, chest
pains, and difficulty breathing (dyspnea).

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Section 12. Ecological Information
Not available.
Ecotoxicity
BOD5 and COD Not available.
Products of Biodegradation Possibly hazardous short term degradation products are not likely. However, long term degradation products may
arise.
The products of degradation are less toxic than the product itself.
Toxicity of the Products
of Biodegradation
Special Remarks on the Not available.
Products of Biodegradation
Potassium carbonate Sesquihydrate

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Section 13. Disposal Considerations
Waste Disposal Waste must be disposed of in accordance with federal, state and local environmental
control regulations.

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Section 14. Transport Information
DOT Classification Not a DOT controlled material (United States).
Not applicable.
Identification
Not applicable.
Special Provisions for
Transport
DOT (Pictograms)

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Section 15. Other Regulatory Information and Pictograms
No products were found.
Federal and State
Regulations
California
Proposition 65
Warnings
Other Regulations OSHA: Hazardous by definition of Hazard Communication Standard (29 CFR 1910.1200).
EINECS: This product is on the European Inventory of Existing Commercial Chemical Substances.
WHMIS (Canada) Not controlled under WHMIS (Canada).
Other Classifications
DSCL (EEC) R22- Harmful if swallowed. S1/2- Keep locked up and out of the reach of
R36/37/38- Irritating to eyes, children.
respiratory system and skin. S26- In case of contact with eyes, rinse
immediately with plenty of water and seek
medical advice.
S36/37/39- Wear suitable protective clothing,
gloves and eye/face protection.
S45- In case of accident or if you feel unwell,
seek medical advice immediately (show the
label where possible).
S46- If swallowed, seek medical advice
immediately and show this container or label.
Health Hazard
HMIS (U.S.A.) 2 National Fire Protection
0 Flammability
0 Association (U.S.A.)
Fire Hazard
2 0 Reactivity
Health
Reactivity
1
Specific hazard
Personal Protection
j
WHMIS (Canada)
(Pictograms)
Potassium carbonate Sesquihydrate
DSCL (Europe)
(Pictograms)
TDG (Canada)
(Pictograms)
ADR (Europe)
(Pictograms)
Protective Equipment
Gloves.
Synthetic apron.
Vapor and dust respirator. Be sure to
use an approved/certified respirator or
equivalent.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

应用

碳酸钾半水广泛用于制备钾肥皂、化妆品，以及玻璃、搪瓷、印染工业和医药原料、无机盐原料、染料、电焊条、炸药、电镀、陶瓷建筑材料、电子管、显像管和日用化工等领域。

用途 它可用作分析试剂和钾盐制备。

生产方法

1. 氯化钾与碳酸铵进行离子交换反应后，通入二氧化碳，再经结晶、脱水、干燥而制得。或由桐碱和草木灰经过浸渍制得。