Cleaning — Process Challenge

酸洗い・ピクリング用化学品

スケール、錆および酸化物を除去し金属表面を活性化するため、塩酸、リン酸および有機酸の設計が必要となる
Updated Jun 2026
ソリューションアプローチ

RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.

Typical Selection Workflow
1
Process & Requirement Definition
Map the unit operation and define the functional, purity, and regulatory requirements the chemical input must meet.
2
Chemistry & Grade Selection
Match the solvent, intermediate, acid or base, catalyst, or specialty additive to the process and downstream compatibility.
3
Trial & Specification
Validate performance at bench or pilot scale, and set the grade, treat rate, and packaging to match throughput and handling.
4
Quality & Supply Assurance
Lock the spec with a CoA and secure multi-origin sourcing for supply resilience and consistent lot quality.
Recommended Chemistries (5)
Hydrochloric Acid
CAS 7647-01-0
酸・塩類
Carbon-steel pickling & descaling
1789 (HYDROCHLORIC ACID, SOLUTION) · Class
Dissolves iron-oxide mill scale and rust to soluble ferrous chloride - the workhorse strong-acid pickle for carbon steel
融点:-115 °C (Melting point is -25 °C for a 39.17% w…   沸点:51 °C at 760 mmHg   密度:1.05 at 15 °C for 10.17% weight/weight solution
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Phosphoric acid
CAS 7664-38-2
酸・塩類
Derusting & iron-phosphate conversion
1805 (Phosphoric acid, solution) · Class
Strips rust while leaving a thin protective iron-phosphate film, so it both descales and passivates ahead of painting
融点:42 °C   沸点:> 130 °C at 760 mmHg   密度:1.892 at 25 °C
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Sulfamic Acid
CAS 5329-14-6
酸・塩類
洗浄 / 脱脂
2967 (SULFAMIC ACID) · Class
Sulfamic acid (H3NO3S) is a solid INORGANIC acid - not organic - that descales carbonate and oxide scale with low fuming and without the chloride attack of HCl, making it safer for mixed-metal parts
融点:Melting point equals 205 °C   沸点:DECOMP @ BOILING POINT   密度:2.15
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Citric Acid (Anhydrous, FCC Food Grade)
CAS 77-92-9
酸・塩類
キレート化 / 金属イオン封鎖
Mild organic acid that chelates iron as it dissolves rust, giving controlled passivation pickling for stainless and precision parts
融点:153 °C (anhydrous)   沸点:Decomposes   密度:1.54 at 20 °C
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Sulfuric Acid 93%
CAS 7664-93-9
酸・塩類
pH調整
1830 (SULFURIC ACID) · Class
Hot dilute sulfuric is the high-throughput pickle for hot-rolled steel scale removal
融点:10 °C   沸点:290 °C at 760 mmHg   密度:1.841
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