Petunjuk Kualiti untuk Kalsium Format Gred Suapan
Petunjuk Kualiti untuk Gred Suapan Kalsium FORMAT
Spesifikasi kualiti untuk kalsium format gred suapan (mengikut gred produk) adalah seperti berikut:
Kalsium format [Ca(HCOO)₂]: ≥ 99.0% (gred premium), ≥ 98.0% (gred pertama), ≥ 96.0% (gred layak)
Jumlah kalsium (sebagai Ca²⁺): ≥ 30.4% (gred premium), ≥ 30.1% (gred pertama), ≥ 29.0% (gred layak)
Kalsium format Bahan tidak larut air: ≤ 0.15% (gred premium), ≤ 0.20% (gred pertama), ≤ 0.30% (gred layak)
Nilai pH kalsium format (larutan akueus 10%): 7.0–7.5 (gred premium), 7.0–7.5 (gred pertama), 6.5–7.0 (gred yang layak)
Kerugian semasa pengeringan: ≤ 0.5% (gred premium), ≤ 1.0% (gred pertama), ≤ 1.5% (gred yang layak)
Kalsium format Logam berat (sebagai Pb²⁺): ≤ 0.002% (gred premium), ≤ 0.002% (gred pertama), ≤ 0.004% (gred layak)
Arsenik (sebagai As³⁺): ≤ 0.0005% (gred premium), ≤ 0.0005% (gred pertama), ≤ 0.001% (gred yang layak)













