기본 정보
- 표준 SMILES
O=[PH](O)O- InChIKey
ABLZXFCXXLZCGV-UHFFFAOYSA-N- 분자식
- H3O3P
- 평균 분자량
- 81.996 g/mol
- 단동위원소 질량
- 81.98198095
이름 및 식별자
- 우선 이름
- Phosphonic acid
- IUPAC
- phosphonic acid
- 현지명
- 아인산
- 영어명
- Phosphorous acid
- 분자식
- H3O3P
- 분자량
- 82
이름 및 동의어
RefChem:6132DTXCID6029674237-066-713598-36-2CHEBI:44976DTXSID2049715Phosphonic acidPhosphorus trihydroxide아인산아인산45%용액아인산용액포스폰산
이름 더 보기
포스포닉산인(III)산Phosphorous acidPHOSPHORUS ACIDPhosphorous acid 99%PhosphonsurePhospohorous acidPhosphorous Acid CrystalPhosphorous acid, extra pure, 98%Phosphorous acid, 98%, extra pureH3PO3
데이터베이스 식별자
- CAS
13598-36-2- PubChem CID
- 407
- DTXSID
DTXSID2049715- ChEMBL
CHEMBL1235291- EC Number
- 237-066-7
물성
구조 계산 물성
- XLogP
- -1.6
- 극성 표면적
- 57.5 Ų
- 수소 결합 공여자 수
- 2
- 수소 결합 수용자 수
- 3
- 회전 가능 결합 수
- 0
- 무거운 원자 수
- 4
- 형식 전하
- 0
- 복잡도
- 26
실험 및 물리화학적 성질
Physical DescriptionDry Powder; Liquid; Liquid; Large Crystals; CBI; Dry Powder
물리화학적 성질
- 녹는점
- 73 °C · 73 °C
- 끓는 점
- 200 °C · 200 °C
- 밀도
- 1.651 g/mL · 1.651 g/mL at 25 °C(lit.)
- 증기압
- 0.001 Pa · 0.001Pa at 20℃
- 인화점
- 200 °C · 200°C
- 저장 조건
- 0 · 0-6°C
- 용해도
- DMSO(약간 용해됨), 메탄올(약간 용해됨), 물(소량으로 용해)
- 물리적 상태
- 크리스탈
- 산도 계수 (pKa)
- 1 · pK1 1.29; pK2 6.74(at 25℃)
- Specific Gravity
- 1.651 · 1.651
- 색상
- 하얀색
- 수소이온지수(pH)
- 1 · pKa1= 1.10, pKa2 = 6.33(25℃)
- 수용성
- 녹는
- Merck
- 14 · 14,7346
- 안정성
- 안정적인. 강한 염기와 호환되지 않습니다. 흡습성.
- InChI
- 1S/H3O3P/c1-4(2)3/h4H,(H2,1,2,3)
- InChIKey
- ABLZXFCXXLZCGV-UHFFFAOYSA-N
- SMILES
- [H]P(O)(O)=O
- NIST
- 2 HPO · (HO)2HPO(13598-36-2)
- EPA
- Phosphonic acid (13598-36-2)
화학적 성질
Phosphorous acid is a white crystalline deliquescent solid that can be prepared by the action of water on phosphorus( III) oxide or phosphorus(III) chloride. It is a dibasic acid producing the anions H2PO3- and HPO3 2- in water. The acid and its salts are slow reducing agents. On warming, phosphonic acid decomposes to phosphine and phosphoric(V) acid. Phosphorus acid is used to prepare phosphite salts. It is usually sold as a 20% aqueous solution.
안전 및 규제
GHS 분류
GHS Classification
Danger
H302: Harmful if swallowed [Warning Acute toxicity, oral]；H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
P260, P264, P270, P280, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P330, P363, P405, and P501 (click each P-code to see the statement)
This chemical does not meet GHS hazard criteria for 0.1% (2 of 1718) of reports.
유해성 정보
Regulatory Information
Chemical: Phosphonic acid
Commission Regulation No 844/2012
Phosphonic acid is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Phosphonic acid are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 16-02-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/15806
Ortho phosphorous acid: Does not have an individual approval but may be used under an appropriate group standard
The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
Other Safety InformationIMAP assessments - Phosphonic acid: Human health tier II assessment；IMAP assessments - Phosphonic acid: Environment tier I assessment
EPA Safer Chemical
Chemical: Phosphonic acid； Yellow triangle - The chemical has met Safer Choice Criteria for its functional ingredient-class, but has some hazard profile issues. Specifically, a chemical with this code is not associated with a low level of hazard concern for all human health and environmental endpoints. (See Safer Choice Criteria). While it is a best-in-class chemical and among the safest available for a particular function, the function fulfilled by the chemical should be considered an area for safer chemistry innovation.
Hazard Classes and Categories
Met. Corr. 1 (22.3%)；Acute Tox. 4 (98.6%)；Skin Corr. 1 (99.9%)；Eye Dam. 1 (47.1%)；STOT SE 3 (26%)
Acute toxicity - category 4；Skin corrosion - category 1A
Self-reactive substances and mixtures - Type G；Acute toxicity (Oral) - Category 4；Skin corrosion/irritation - Category 1；Serious eye damage/eye irritation - Category 1
Corrosives
Acute Tox. 4 *；Skin Corr. 1A
안전 및 보호
Protective Action Criteria (PAC)
5.7 [mg/m3]
63 [mg/m3]
380 [mg/m3]
규제 정보
Regulatory Information
Chemical: Phosphonic acid
Commission Regulation No 844/2012
Phosphonic acid is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Phosphonic acid are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 16-02-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/15806
Ortho phosphorous acid: Does not have an individual approval but may be used under an appropriate group standard
The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
안전 데이터
- wgk
- 1
- tsca
- TSCA listed
- rtecs
- SZ6400000
- ridadr
- UN 2834
- HS 번호
- 28092019
- risk_code
- 22-35
- hazard_code
- C
- safety_code
- 26-36/37/39-45
- 포장분류
- III
- 위험 등급
- 8
- 기존화학 물질
- KE-28491
- F 고인화성물질
- 3
- Hazard Classifications
- Acute Tox. 4 OralEye Dam. 1Met. Corr. 1Skin Corr. 1A
- 스토리지 클래스
- 8A - Combustible corrosive hazardous materials
화학 및 산업
용도 및 제조
U.S. Production2023: 10,000,000 - <25,000,000 lb；2022: 10,000,000 - <25,000,000 lb；2021: 25,000,000 - <40,000,000 lb；2020: 10,000,000 - <25,000,000 lb
Consumer UsesNot Known or Reasonably Ascertainable；Soil amendments (fertilizers)；Intermediate
Industry Uses
CBI；Processing aids not otherwise specified；Reducing agent；Soil amendments (fertilizers)；Not Known or Reasonably Ascertainable；Corrosion inhibitor；Flocculating agent；Intermediate；Anti-scaling agent；Processing aids, specific to petroleum production
Household ProductsInformation on 6 consumer products that contain Phosphorus acid in the following categories is provided:；• Auto Products；• Inside the Home；• Landscaping/Yard；• Personal Care
Use Classification
EPA Safer Chemical Functional Use Classes -> Oxidants and Oxidant Stabilizers
Safer Chemical Classes -> Yellow triangle - The chemical has met Safer Choice Criteria for its functional ingredient-class, but has some hazard profile issues
General Manufacturing Information
All Other Basic Organic Chemical Manufacturing；Miscellaneous Manufacturing；Paper Manufacturing；Not Known or Reasonably Ascertainable；All Other Chemical Product and Preparation Manufacturing；Agriculture, Forestry, Fishing and Hunting；Soap, Cleaning Compound, and Toilet Preparation Manufacturing；Oil and Gas Drilling, Extraction, and Support activities；Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing；CBI；Mining (except Oil and Gas) and support activities
Phosphonic acid: ACTIVE
응용 분야
개요Phosphorous acid, H3PO3, is diprotic (readily ionizes two protons), not triprotic as might be suggested by this formula. Phosphorous acid is as an intermediate in the preparation of other phosphorous compounds. Because preparation and uses of “phosphorous acid” actually pertain more to the major tautomer, phosphonic acid, it is more often referred to as “phosphorous acid”. Phosphorous acid has the chemical formula H3PO3, which is best expressed as HPO(OH)2 to show its diprotic character. P(OH)3 (IUPAC: phosphorous acid) has CAS number 10294-56-1. It has been shown to be a stable tautomer.
용도Phosphorous acid is used to produce the fertilizer phosphate salt like potassium phosphite, ammonium phosphite and calcium phosphite. It is actively involved in the preparation of phosphites like aminotris(methylenephosphonic acid) (ATMP), 1-hydroxyethane 1,1-diphosphonic acid (HEDP) and 2-phosphonobutane-1,2,4-tricarboxylic Acid (PBTC), which find application in water treatment as a scale or corrosive inhibitor. It is also used in chemical reactions as a reducing agent. Its salt, lead phosphite is used as PVC stabilizer. It is also used as a precursor in the preparation of phosphine and as an intermediate in the preparation of other phosphorus compounds.
일반 설명Phosphorous acid appears as a white or yellow crystalline solid (melting point 70.1°C) or a solution of the solid. Density 1.651 g /cm3 . Contact may severely irritate skin, eyes, and mucous membranes. Toxic by ingestion, inhalation and skin absorption.
제조 방법
Phosphorus acid can be prepared by the reaction of phosphorus trichloride with water: PCl3 + 3H2O → H3PO4 + 3HClThe reaction is violent. Addition of PCl3 should be extremely cautious and slow. The addition can be carried out safely in the presence of concentrated HCl. Alternatively, a stream of air containing PCl3 vapor is passed into icecold water and solid crystals of H3PO4 form. Alternatively, phosphorus acid can be prepared by adding phosphorus trichloride to anhydrous oxalic acid: PCl3 + 3(COOH）2 → H3PO3 + 3CO + 3CO2 + 3HCl In this reaction, all products except H3PO3 escape as gases leaving the liquid acid. Dissolution of phosphorus sesquioxide in water also forms phosphorus acid. When shaken with ice water, phosphorus acid is the only product . P4O6 + 6H2O → 4H3PO3 However, in hot water part of the phosphorus acid disproportionates to phosphoric acid and phosphorus or phosphine.
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하류 제품
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추가 설명
정의ChEBI: Phosphorous acid is a phosphorus oxoacid. It is a conjugate acid of a dihydrogenphosphite. It is a tautomer of a phosphonic acid.
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