Industrial chemicals · Taylor, TXTechnical Data Sheet
Sodium Bisulfite 25% ACS Grade
ACS · 25%
- 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 · 25%
- 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)
Identity & Composition
- 製品名
- Sodium Bisulfite 25% ACS Grade
- Alliance Code
- sodium-bisulfite-25-acs-grade
- グレード
- ACS
- 濃度
- 25% w/w
- CAS番号
- 7631-90-5Adjudicated
- 化学式
- HNaO3SAdjudicated
- 分子量
- 104.06Adjudicated
- 製品種別
- Solution
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay | 24.0 - 26.0 % w/w | 24.9 % | — | Interpreted |
| Chloride (Cl) | 0.005 % max | 0.00021 % | — | Interpreted |
| Heavy metals (as Pb) | 0.00025 % max | 0.000068 % | — | Interpreted |
| Insoluble matter | 0.0013 % max | 0.00024 % | — | Interpreted |
| Iron (Fe) | 0.0005 % max | 0.000081 % | — | Interpreted |
| Composition | 25 % sodium hydrogen sulfite in deionized water, by weight | Conforms | By formulation; batch weights (scale ticket) | 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 | 25% | — | current | current |
| ACS Grade | 40% | — | sodium-bisulfite-40-acs-grade | View TDS → |
| Technical | 40% | — | sodium-bisulfite-40 | 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 → |
各グレードの代表的な含量は、直近ロットの平均値です。代替品として使用する前に、そのグレードがお客様の仕様を満たしていることをご確認ください。
物理的及び化学的性質
| Property | 値 | Source |
|---|---|---|
| 外観 | Clear, colorless to light-yellow liquid | Published reference |
| 形状 | Liquid | Published reference |
| 臭い | Slight sulfur dioxide odor | Published reference |
| pH | 3.5-5.0 | Published reference |
| 比重 | ~1.20 | Published reference |
| 密度 | ~1.18-1.22 g/cm³ (25%, 20°C) | Published reference |
| 沸点 | 100 to 103 °C (212 to 217 °F) (aqueous solution) | Adjudicated |
| 融点 | -9 to 0 °C (16 to 32 °F), freezing point (aqueous solution) | Adjudicated |
| 引火点 | Not applicable (non-combustible aqueous solution) | Published reference |
| Solubility (water) | Miscible with water | Published reference |
Regulatory & Transport
DOT / 49 CFR
- 国連番号
- UN2693Adjudicated
- 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
- —no canonical
- 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。
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 25% ACS Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Application Guidance
Sodium Bisulfite 25% ACS Grade (ACS) application guidance is available on request. Contact Alliance Chemical Technical Services for grade-specific use recommendations.
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.
Revision History
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.6 | 2026-10-13 | Canonical data updated: 4 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.5 | 2026-10-08 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-10-07 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-10-05 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-09-30 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-07-22 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
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.