Calcium Formate

3367

April 18, 2025, 10:00 AM

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本稿では、ホルム酸カルシウム［Ca(HCOO)₂］の基本物性を体系的に整理。白色結晶性粉末で、分子量130.12 g/mol、正方晶系（顕微鏡下で針状結晶）である。20℃での水溶性は16.6 g/100 g（50℃で24.1 g/100 gへ増加）、pH 6.5～8.0（10%水溶液）と弱アルカリ性を示す。バルク密度は0.7～0.9 g/cm³、水分含有量は工業級で≤0.5％、飼料・食品 grade では≤0.2％。200℃まで熱安定だが、300℃超で分解開始。湿気をやや吸収するが、他のカルシウム塩に比べて潮解性は低い。

1.Product Characteristics and Properties

1.1 Basic Physical and Chemical Properties

Property	Specification	Details
Chemical Formula	Ca(HCOO)₂	Calcium salt of formic acid
Molecular Weight	130.12 g/mol	-
Appearance	White crystalline powder	Free-flowing, fine particles
Crystal Structure	Orthorhombic	Needle-like crystals under microscope
Solubility in Water	16.6g/100g (20°C)	Increases to 24.1g/100g at 50°C
Bulk Density	0.7-0.9 g/cm³	Varies with particle size distribution
pH Value(10%solution)	6.5-8.0	Slightly alkaline in solution
Melting Point	Decomposes >300°C	No clear melting point observed
Moisture Content	≤0.5% (industrial grade)	≤0.2% (feed/food grade)
Thermal Stability	Stable up to 200°C	Begins to decompose above this temperature
Hygroscopicity	Moderate	Less hyg