Industrial chemicals · Taylor, TXTechnical Data Sheet
Technical Data Sheet
Sodium Bisulfite 40% ACS Grade
ACS Grade · 40%
- CAS番号
- 7631-90-5
- UN番号
- UN2693
- 危険有害性クラス・容器等級
- 8 · PG III
- 構造
構造・PubChem - グレード
- ACS Grade · 40%
- 注意喚起語
- Danger
- 危険有害性
- 正式輸送品名
- Bisulfites, aqueous solutions, n.o.s. (Sodium bisulfite)
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer.
Identity & Composition
- 製品名
- Sodium Bisulfite 40% ACS Grade
- Alliance Code
- sodium-bisulfite-40-acs-grade
- グレード
- ACS Grade
- 濃度
- 40%
- CAS番号
- 7631-90-5PubChem
- 化学式
- —PubChem
- 分子量
- 104.06PubChem
- 製品種別
- Solution
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (NaHSO3) | 39.5 - 40.5 % by wt | 40.07 % | — | Interpreted |
| Chloride (Cl) | ≤ 0.008 % | 0.00052 % | — | Interpreted |
| Heavy metals (as Pb) | ≤ 0.0004 % | 0.00011 % | — | Interpreted |
| Insoluble matter | ≤ 0.002 % | 0.00047 % | — | Interpreted |
| Iron (Fe) | ≤ 0.0008 % | 0.00010 % | — | Interpreted |
| Sulfur dioxide (SO2), available | 24.3 - 24.9 % by wt | 24.7 % | Iodometric titration (I2 / Na2S2O3 back-titration) | 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 Grade | 40% | — | current | current |
| Technical | 40% | — | sodium-bisulfite-40 | View TDS → |
| ACS | 25% | — | sodium-bisulfite-25-acs-grade | View TDS → |
| Technical | 25% | — | sodium-bisulfite-25 | View TDS → |
| Technical | 15% | — | sodium-bisulfite-15-technical-grade | View TDS → |
| ACS | 10% | — | sodium-bisulfite-10-acs-grade | View TDS → |
| Technical | 10% | — | sodium-bisulfite-10-technical-grade | View TDS → |
| ACS | — | — | sodium-bisulfite-15-acs-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 to pale yellow liquid | Adjudicated |
| 形状 | Liquid | Published reference |
| 臭い | Pungent, sulfur dioxide odor | Adjudicated |
| pH | 3.5–5.0 | Adjudicated |
| 比重 | 1.32–1.35 at 20 °C (water = 1) | Adjudicated |
| 密度 | 1.32-1.35 g/cm³ (20°C) | Published reference |
| 沸点 | About 100–104 °C (212–219 °F), with release of sulfur dioxide | Adjudicated |
| 融点 | About 5 °C (41 °F), crystallization point; keep from freezing | Adjudicated |
| 引火点 | 該当しない | Adjudicated |
| 蒸気圧 | About 18–32 mmHg at 20 °C (water and sulfur dioxide) | Adjudicated |
| Solubility (water) | Completely miscible with water | Adjudicated |
| 粘度 | 3.6 mPa·s at 20 °C | Adjudicated |
Materials of Construction
| Material | Rating | Conditions | Source |
|---|---|---|---|
| stainless steel (alloy grade not specified) | Compatible | Sodium bisulfite solution 38.0–42.0 wt. %, as shipped in tank truck or railcar; no temperature stated | ineos.com |
| plastic (polymer not specified in source) | Compatible | Sodium bisulfite solution 38.0–42.0 wt. %, as shipped in 55 gallon plastic drums; no temperature stated | ineos.com |
Compatibility is drawn from published manufacturer and supplier documentation for this product; each rating is sourced. Confirm against your specific duty cycle before equipment selection.
Regulatory & Transport
DOT / 49 CFR
- 国連番号
- UN269349 CFR 172.101
- 危険有害性クラス
- 8Adjudicated
- 容器等級
- IIIAdjudicated
- 正式輸送品名
- Bisulfites, aqueous solutions, n.o.s. (Sodium bisulfite)Adjudicated
GHS / OSHA HCS 2024
- 注意喚起語
- DangerAdjudicated
- H-Codes (Hazard Statements)
- EUH031, H302, H318Adjudicated
- P-Codes (Precautionary Statements)
- P264, P270, P280, P301+P312, P305+P351+P338, P310, P330, P501Adjudicated
許容濃度
- OSHA PEL (29 CFR 1910.1000)
- —no canonical
- ACGIH TLV
- 5 mg/m³ TWAAdjudicated
- NIOSH REL
- 5 mg/m³ TWANIOSH Pocket Guide
- NIOSH IDLH
- —no canonical
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。
Health & Fire Hazard
Acute Toxicology
- LD₅₀ Oral (rat)
- 1,310–2,610 mg/kg (as sodium bisulfite)Adjudicated
- LD₅₀ Dermal (rabbit)
- > 2,000 mg/kg (rat)Adjudicated
- LC₅₀ Inhalation (rat, 4 h)
- > 5.5 mg/L (rat, 4 h)Adjudicated
急性毒性値はSDS第11項またはNIOSH RTECSによる。
Supplier Qualification Packet
One zipped download containing the TDS, SDS, latest lot COA (when available), and a fresh Letter of Continuing Guaranty for Sodium Bisulfite 40% ACS Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
- Dechlorination in municipal wastewater, pulp & paper, power, and textile water treatment plantsineos.com
- Oxygen scavenger and boiler water treatmentineos.com
- Preservative in the photo developer processineos.com
- Flue gas desulfurizationineos.com
- Food additive (source is a sodium bisulfite solution stated to meet FCC, ACS and/or USP specifications; grade-scoped to ACS handles)ineos.com
- Laboratory, research, or manufacturing use (ACS reagent grade material)digitalassets.avantorsciences.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
- 酸及び酸化剤から離し、換気の良い涼しい場所で、ポリエチレン、グラスファイバー又はステンレス鋼製の容器内に密閉して保管すること。凍結から保護すること（5 ℃付近で結晶化する）。Adjudicated
- Handling Precautions
- Use standard chemical PPE — splash goggles, gloves, lab coat. Refer to SDS for hazard-specific PPE requirements.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- 酸類（有毒な二酸化硫黄ガスを発生する）；酸化剤；亜硝酸塩及び硝酸塩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)
UN2693, Bisulfites, aqueous solutions, n.o.s. (Sodium bisulfite), 8, PG III
Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.
NMFC Class
65
Placard
Corrosive
容器等級
PG III
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: 22 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.6 | 2026-10-07 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.5 | 2026-10-05 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-09-30 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-08-05 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-07-22 | Canonical data updated: 1 field 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.