기본 정보
- CAS
10049-21-5- 표준 SMILES
O.O=P([O-])(O)O.[Na+]- InChIKey
BBMHARZCALWXSL-UHFFFAOYSA-M- 분자식
- H4NaO5P
- 평균 분자량
- 137.99 g/mol
- 단동위원소 질량
- 137.9694045
이름 및 식별자
- 우선 이름
- Sodium Phosphate, Monobasic, Monohydrate
- IUPAC
- sodium;dihydrogen phosphate;hydrate
- 현지명
- 제일인산나트륨 수화물
- 영어명
- Sodium Phosphate Monobasic Monohydrate
- 분자식
- H4NaO5P
- 분자량
- 137.992291
이름 및 동의어
이름 더 보기
데이터베이스 식별자
- CAS
10049-21-5- PubChem CID
- 516949
- DTXSID
DTXSID6073994- ChEBI
CHEBI:114249- UNII
- 593YOG76RN
- EC Number
- 600-102-0
물성
구조 계산 물성
- 극성 표면적
- 81.6 Ų
- 수소 결합 공여자 수
- 3
- 수소 결합 수용자 수
- 5
- 회전 가능 결합 수
- 0
- 무거운 원자 수
- 7
- 형식 전하
- 0
- 복잡도
- 61
실험 및 물리화학적 성질
Physical Description
Dry Powder
White odorless solid; Slightly deliquescent; [Merck Index] White hygroscopic crystals; [Sigma-Aldrich MSDS]
물리화학적 성질
- 녹는점
- 100 °C · 100°C -H₂O
- 끓는 점
- 399 °C · 399 °C
- 밀도
- 2 · 2,04 g/cm3
- 저장 조건
- 5 °C · Store at +5°C to +30°C.
- 용해도
- 2 O: · H2O: 1 M, 투명, 무색
- 물리적 상태
- 고체
- 산도 계수 (pKa)
- 7.21 · 7.21
- 색상
- 흰색 반투명
- 냄새
- 냄새 없는
- 수소이온지수(pH)
- 4.1 · 4.1-4.5 (25℃, 50mg/mL in H2O)
- 수용성
- 물에 용해됨; 에탄올, 에테르 및 클로로포름에 용해되지 않습니다.
- Merck
- 14 · 14,8660
- InChI
- 1S/Na.H3O4P.H2O/c;1-5(2,3)4;/h;(H3,1,2,3,4);1H2/q+1;;/p-1
- InChIKey
- BBMHARZCALWXSL-UHFFFAOYSA-M
- SMILES
- [Na+].[H]O[H].OP(O)([O-])=O
- LogP
- -2.148 · -2.148 (est)
- EPA
- Monosodium phosphate monohydrate (10049-21-5)
- Absorption
- 0.01 at · ≤0.01 at 260nm≤0.01 at 280nm
화학적 성질
Anhydrous salt: white crystalline powder; slightly hygroscopic; forms sodium acid pyrophosphate, Na2H2P2O7 on heating above 225°C and sodium metaphosphate (NaPO3)n at about 350 to 400°C; very soluble in water, aqueous solution acidic. Monohydrate: white orthorhombic crystals or granules; density 2.04 g/cm3 ; loses its water of crystallization at 100°C; very soluble in water, pH of 1% solution 4.5; insoluble in alcohol. Dihydrate: large transparent crystals; orthorhombic bisphenoidal structure; density 1.915 g/cm 3 ; decomposes at 60°C; very soluble in water; insoluble in alcohol.
안전 및 규제
GHS 분류
GHS Classification
This chemical does not meet GHS hazard criteria for 76.9% (40 of 52) of all reports.
Warning
H315 (21.2%): Causes skin irritation [Warning Skin corrosion/irritation];H319 (21.2%): Causes serious eye irritation [Warning Serious eye damage/eye irritation];H335 (21.2%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 52 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.;Reported as not meeting GHS hazard criteria per 40 of 52 reports by companies.;There are 4 notifications provided by 12 of 52 reports by companies with hazard statement code(s).;Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
유해성 정보
Regulatory Information
Chemical: Phosphoric acid, monosodium salt, monohydrate
Phosphoric acid, monosodium salt, monohydrate is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Phosphoric acid, monosodium salt, monohydrate 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)
Monosodium dihydrogen phosphate: Does not have an individual approval but may be used under an appropriate group standard
규제 정보
Regulatory Information
Chemical: Phosphoric acid, monosodium salt, monohydrate
Phosphoric acid, monosodium salt, monohydrate is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Phosphoric acid, monosodium salt, monohydrate 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)
Monosodium dihydrogen phosphate: Does not have an individual approval but may be used under an appropriate group standard
안전 데이터
- wgk
- 1
- tsca
- Yes
- rtecs
- WA1900000
- 독성
- LD50 orally in Rabbit: > 2000 mg/kg LD50 dermal Rabbit > 7940 mg/kg
- HS 번호
- 2835 22 00
- risk_code
- 36/37/38-36
- hazard_code
- Xi
- safety_code
- 26-36/37/39-36-39-24/25
- F 고인화성물질
- 3
- 스토리지 클래스
- 13 - Non Combustible Solids
화학 및 산업
용도 및 제조
응용 분야
개요Sodium Phosphate Monobasic Monohydrate is a reagent with very high buffering capacity widely used in molecular biology, biochemistry and chromatography. it can be used as a buffer to adjust pH. In medicine, it is sometimes used as a stimulant laxative before certain operations and medical procedures. Sodium Phosphate Monobasic Monohydrate is often used in foods and in water treatment. It is used as sequestrant, emulsifier, mordant in dyeing, reagent and buffer in foods and analytical chemistry. It is applied as a fireproofing agent and for weighting silk in tanning. It is employed in manufacturing of enamels, ceramics, detergents, boiler compounds, in soldering and brazing instead of borax. Monobasic sodium phosphate is used in baking powders, acid cleansers, electroplating, as a dry acidulant, and in treating boiler water.
용도Sodium Phosphate Monobasic Monohydrate is often used in foods and in water treatment. it can be used as a buffer to adjust pH. In medicine, it is sometimes used as a stimulant laxative before certain operations and medical procedures.
일반 설명Useful in conjuction with sodium phosphate, dibasic (Cat. No. 567550) in the preparation of biological buffers(absorbance: ≤0.01 at 260 nm and 280 nm).
제조 방법
Monobasic sodium phosphate can be prepared by partial neutralization of phosphoric acid with sodium hydroxide in equimolar amounts: H3PO4+ NaOH →NaH2PO4+ H2O It also can be made by treating disodium hydrogen phosphate with phosphoric acid in proper stoichiometric amount: Na2HPO4+ H3PO4→2NaH2PO4
생산 방법Monobasic sodium phosphate is prepared by adding phosphoric acid to a hot, concentrated solution of disodium phosphate until the liquid ceases to form a precipitate with barium chloride. This solution is then concentrated and the monobasic sodium phosphate is crystallized.
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