Industrial chemicals · Taylor, TXTechnical Data Sheet
Technical Data Sheet
Hydrochloric Acid 20% ACS Grade
ACS · 20%
- CAS番号
- 7647-01-0
- UN番号
- UN1789
- 危険有害性クラス・容器等級
- 8 · PG II
- 構造
構造・PubChem - グレード
- ACS · 20%
- 注意喚起語
- Danger
- 危険有害性
- 正式輸送品名
- Hydrochloric acid
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer.
Identity & Composition
- 製品名
- Hydrochloric Acid 20% ACS Grade
- Alliance Code
- hydrochloric-acid-20-acs-grade
- グレード
- ACS
- 濃度
- 20%
- CAS番号
- 7647-01-0PubChem
- 化学式
- HClAdjudicated
- 分子量
- 36.46PubChem
- 製品種別
- Solution
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (HCl) | 19.5 - 20.5 % | 20.00 % | — | Interpreted |
| Ammonium (NH4) | 1.6 ppm max | 0.22 ppm | — | Interpreted |
| Arsenic (As) | 0.0054 ppm max | 0.0016 ppm | — | Interpreted |
| Bromide (Br) | 0.0027% max | 0.00069 % | — | Interpreted |
| Extractable organic substances | 2.7 ppm max | 0.18 ppm | — | Interpreted |
| Free chlorine (Cl) | 0.54 ppm max | 0.048 ppm | — | Interpreted |
| Heavy metals (as Pb) | 0.55 ppm max | 0.063 ppm | — | Interpreted |
| Iron (Fe) | 0.11 ppm max | 0.018 ppm | — | Interpreted |
| Residue after ignition | 3.6 ppm max | 0.28 ppm | — | Interpreted |
| Sulfate (SO4) | 1 ppm max | 0.07 ppm | — | Interpreted |
| Sulfite (SO3) | 0.54 ppm max | 0.023 ppm | — | Interpreted |
| Color (APHA) | 10 max | 1 | — | Interpreted |
| Composition | 20 % hydrochloric acid in deionized water, by weight | Conforms | By formulation; confirmed by specific gravity | Interpreted |
Values are reproduced from the current product reference. Source labels do not by themselves establish a supplier guarantee or a test result for your lot. Confirm applicable acceptance limits and request lot-specific documentation.
Available GradesSame CAS, alternate grades and concentrations
| グレード | 濃度 | Typical Assay | SKU | TDS |
|---|---|---|---|---|
| This grade ACS | 20% | — | current | current |
| ACS Reagent | 37% | — | hydrochloric-acid-37-acs-reagent-grade | View TDS → |
| Technical Grade | 37% | — | hydrochloric-acid-37-hcl-37-technical-grade | View TDS → |
| ACS | 31% | — | hydrochloric-acid-31-acs-grade | View TDS → |
| Technical Grade | 31% | — | hydrochloric-acid-31-technical-grade | View TDS → |
| ACS | 25% | — | hydrochloric-acid-25-acs-grade | View TDS → |
| Technical | 25% | — | hydrochloric-acid-25-technical-grade | View TDS → |
| Technical | 20% | — | hydrochloric-acid-20-technical-grade | View TDS → |
| Technical Grade | 15% | — | hydrochloric-acid-15-technical-grade | View TDS → |
| ACS | 10% | — | hydrochloric-acid-10-acs-grade | View TDS → |
| Technical | 10% | — | hydrochloric-acid-10-technical-grade | View TDS → |
| ACS | 5% | — | hydrochloric-acid-5-acs-grade | View TDS → |
| Technical Grade | 5% | — | hydrochloric-acid-5-technical-grade | View TDS → |
Typical assay shown is the rolling-window mean from the sibling product's most recent lots. Grade selection drives downstream end-use — verify the sibling grade matches your specification before substitution.
物理的及び化学的性質
| Property | 値 | Source |
|---|---|---|
| 外観 | Clear, colorless liquid | Adjudicated |
| 臭い | Pungent, irritating odor | Adjudicated |
| pH | < 1 | Adjudicated |
| 比重 | 1.09–1.10 at 20 °C (water = 1) | Adjudicated |
| 沸点 | About 109 °C (228 °F) | Adjudicated |
| 融点 | About -60 °C (-76 °F), freezing point | Adjudicated |
| 引火点 | 該当しない | Adjudicated |
| 蒸気圧 | About 17 mmHg (23 hPa) at 20 °C | Adjudicated |
| Solubility (water) | Completely miscible with water | Adjudicated |
Strong acid — density and vapor-pressure values shown are at 20 °C; values shift markedly with concentration and temperature. Reference concentration-temperature curves before specifying equipment.
Materials of ConstructionService envelope ≈ 20%
| Material | Rating | Max T (°C) | Notes | Source |
|---|---|---|---|---|
Buna-N (NBR) elastomer | Poor | — | Hardens and cracks; do not use. | Parker O-ring Chemical Compatibility |
EPDM elastomer | Good | 80 | Standard for HCl and H2SO4 gaskets. | Parker O-ring Chemical Compatibility |
Viton (FKM) elastomer | Good | 80 | Acceptable for HCl gaskets up to 37 %. | Parker O-ring Chemical Compatibility |
PTFE fluoropolymer | Excellent | 200 | Universal acid compatibility. | Cole-Parmer Chemical Compatibility |
PVDF (Kynar) fluoropolymer | Excellent | 120 | Excellent for HCl piping at elevated temperature. | Cole-Parmer Chemical Compatibility |
Borosilicate Glass glass ceramic | Excellent | 100 | Inert to most strong acids (avoid HF). | Cole-Parmer Chemical Compatibility |
316 stainless steel metal | Poor | 25 | Severe pitting; use only for vapors | Cole-Parmer Chemical Compatibility |
Aluminium metal | Not recommended | — | Reacts to form H2 gas | Cole-Parmer Chemical Compatibility |
Carbon Steel metal | Not recommended | — | Catastrophic corrosion; never use. | Cole-Parmer Chemical Compatibility |
Hastelloy C-276 metal | Excellent | 80 | Preferred metal for concentrated HCl service. | Haynes International C-276 datasheet |
Inconel 625 metal | Good | 60 | Acceptable for dilute service | Cole-Parmer Chemical Compatibility |
Tantalum metal | Excellent | 100 | Best-in-class but expensive | Cole-Parmer Chemical Compatibility |
CPVC thermoplastic | Excellent | 90 | Higher-temp variant of PVC. | Cole-Parmer Chemical Compatibility |
FRP (vinyl ester) thermoplastic | Good | 60 | Common bulk-storage tank material | Cole-Parmer Chemical Compatibility |
HDPE thermoplastic | Excellent | 60 | Standard tank/drum material for HCl up to 37 %. | Cole-Parmer Chemical Compatibility |
PVC thermoplastic | Excellent | 60 | Common for piping; verify rating for service > 50 °C. | Cole-Parmer Chemical Compatibility |
Ratings reflect the service envelope (concentration × temperature) shown. Always confirm against your specific duty cycle and contact-time before equipment selection. The most cautious rating across overlapping references is shown.
Materials Selection Tool
Showing 16 of 16 material ratings within the selected envelope.
| Material | Rating | Max T (°C) | Notes |
|---|---|---|---|
Buna-N (NBR) elastomer | Poor | — | Hardens and cracks; do not use. |
EPDM elastomer | Good | 80 | Standard for HCl and H2SO4 gaskets. |
Viton (FKM) elastomer | Good | 80 | Acceptable for HCl gaskets up to 37 %. |
PTFE fluoropolymer | Excellent | 200 | Universal acid compatibility. |
PVDF (Kynar) fluoropolymer | Excellent | 120 | Excellent for HCl piping at elevated temperature. |
Borosilicate Glass glass ceramic | Excellent | 100 | Inert to most strong acids (avoid HF). |
316 stainless steel metal | Poor | 25 | Severe pitting; use only for vapors |
Aluminium metal | Not recommended | — | Reacts to form H2 gas |
Carbon Steel metal | Not recommended | — | Catastrophic corrosion; never use. |
Hastelloy C-276 metal | Excellent | 80 | Preferred metal for concentrated HCl service. |
Inconel 625 metal | Good | 60 | Acceptable for dilute service |
Tantalum metal | Excellent | 100 | Best-in-class but expensive |
CPVC thermoplastic | Excellent | 90 | Higher-temp variant of PVC. |
FRP (vinyl ester) thermoplastic | Good | 60 | Common bulk-storage tank material |
HDPE thermoplastic | Excellent | 60 | Standard tank/drum material for HCl up to 37 %. |
PVC thermoplastic | Excellent | 60 | Common for piping; verify rating for service > 50 °C. |
Regulatory & Transport
DOT / 49 CFR
- 国連番号
- UN1789Adjudicated
- 危険有害性クラス
- 8Adjudicated
- 容器等級
- IIAdjudicated
- 正式輸送品名
- Hydrochloric acidAdjudicated
GHS / OSHA HCS 2024
- 注意喚起語
- DangerAdjudicated
- H-Codes (Hazard Statements)
- H290, H314, H335ECHA C&L Inventory
- P-Codes (Precautionary Statements)
- P234, P260, P261, P264, P271, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P390, P403+P233, P405, P406, P501Adjudicated
許容濃度
- OSHA PEL (29 CFR 1910.1000)
- 5 ppm ceilingOSHA 29 CFR 1910.1000
- ACGIH TLV
- 2 ppm CeilingAdjudicated
- NIOSH REL
- 5 ppm CeilingAdjudicated
- NIOSH IDLH
- 50 ppmAdjudicated
輸送情報は発行時点の49 CFR 172.101の照会結果を反映しています。データ出典：REL/IDLHはNIOSH Pocket Guide、PELはOSHA Zテーブル。出荷に関わる重要な判断の前に、必ず最新の規制本文で確認してください。
Supplier Qualification Packet
One zipped download containing the TDS, SDS, latest lot COA (when available), and a fresh Letter of Continuing Guaranty for Hydrochloric Acid 20% ACS Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Catalog EquivalentsCross-reference vs major chemical suppliers
Honeywell
| SKU | グレード | Conc. | Match | Notes |
|---|---|---|---|---|
| 258148 | ACS | 37% | Unverified candidate | Fluka brand, ACS grade |
Cross-references are informational. Confirm against the manufacturer's current specification before substitution. Competitor trademarks are property of their respective owners.
Applications
- Pickling and metal cleaning agent in metal processing, to remove oxides and scalechemceed.com
- Oil well acidizing — dissolves calcium and magnesium carbonate rock formations to increase permeability and productionchemceed.com
- Beneficiation of ores and rock phosphate; stimulation of oil and gas wells in carbonate and sandstone reservoirsitwreagents.com
- Metallurgical pickling, etching and brazingitwreagents.com
- Removal of calcium carbonate (scale) deposits from equipment and cleaning of boreholes and gravel-pack filters after drillingitwreagents.com
- Dilute acid used in construction to remove mortar residue from masonry and lime film from tiles after groutingitwreagents.com
- ACS reagent purity makes it acceptable for analytical applications and research laboratorieslaballey.com
- Batteries, reagent use, descaling agent, reducing agentlaballey.com
- Petroleum well operations, ore reduction, food processing, pH adjustment and general cleaningchemceed.com
- Listed product uses include acid cleaners, boiler water treatment, electroplating, galvanizing, high fructose corn syrup, pH control, rust and scale removers, sugar refining, swimming pool and toilet bowl cleanerchemceed.com
Applications are drawn from published manufacturer and supplier documentation; each is sourced. Suitability for a specific use is the buyer's to confirm.
Storage & Handling
- Recommended Storage
- 涼しく換気の良い場所で、通気口のある耐食性の密閉容器（ポリエチレン又はガラス）に保管すること。漂白剤、その他の酸化剤、塩基及び金属から遠ざけること。Adjudicated
- Handling Precautions
- Use full PPE including face shield, acid-resistant gloves and apron. Add acid to water slowly with stirring; never reverse. Ventilation required.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- 塩基、水酸化物、炭酸塩、アミンおよびアンモニア；次亜塩素酸ナトリウム（漂白剤）を含む酸化剤（塩素ガスを発生）；ほとんどの金属（引火性水素を発生）；シアン化物および硫化物（有毒ガスを発生）。Adjudicated
- Shelf Life
- Consult Technical Services for product-specific shelf life
For full hazard, PPE, and emergency response guidance, refer to the Safety Data Sheet (SDS) for this product. The SDS controls in all cases where guidance differs.
Packaging & Logistics
Shipping Description (US DOT)
UN1789, Hydrochloric acid, 8, PG II
Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.
NMFC Class
60
Placard
Corrosive
容器等級
PG II
Revision History
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.7 | 2026-10-08 | Canonical data updated: 21 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.6 | 2026-10-05 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.5 | 2026-09-30 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-08-27 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-08-05 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-07-22 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-07-17 | Canonical data re-verified: 6 fields updated against independent vendor SDSs, CLP Annex VI, 49 CFR, and OSHA HazCom 2024 (GHS classification, hazard/precautionary codes, signal word, physical properties as applicable).
| canonical_change |
| 1.0 | 2026-05-20 | Initial URL-first TDS published from canonical chemistry registry. | initial |
This Technical Data Sheet is provided for technical reference. The Safety Data Sheet (SDS) controls in all cases where guidance differs. Values reflect Alliance Chemical canonical data at time of generation; subsequent revisions are recorded in the Revision History above.