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옥살산나트륨

옥살산나트륨
옥살산나트륨 구조식 이미지
카스 번호:
62-76-0
한글명:
옥살산나트륨
동의어(한글):
디나트륨옥살산염;옥살산,디나트륨염;N/10-옥살산나트륨(0.05M);나트륨옥살산염;옥살산나트륨;옥살산염,디나트륨염;소듐옥살레이트;나트륨옥살산염;다이소듐 옥살레이트;에테인이산, 다이소듐 염;에테인이산, 소듐 염 (1:2);옥살산 소듐;옥살산, 다이소듐;옥살산, 다이소듐 염;옥살산, 소듐
상품명:
Sodium oxalate
동의어(영문):
62-76-0;natriumoxalat;stavelansodny;Disodium oxaL;SODIUM OXALATE;oxalatedesodium;SodiumOxalateGr;SodiumOxalateAcs;DI-SODIUM OXALATE;SodiumOxalateA.R.
CBNumber:
CB5369366
분자식:
C2Na2O4
포뮬러 무게:
134
MOL 파일:
62-76-0.mol

옥살산나트륨 속성

녹는점
250-270 °C
밀도
2.34
저장 조건
Store at +5°C to +30°C.
용해도
H2O: 0.1 M at 20 °C, clear, colorless
물리적 상태
Powder
색상
White
수소이온지수(pH)
7-8.5 (25℃, 2.5% in H2O)
수용성
37 g/L (20 ºC)
감도
Hygroscopic
Merck
14,8650
BRN
3631622
안정성
Stability Stable; hygroscopic. Incompatible with strong oxidizing agents.
CAS 데이터베이스
62-76-0(CAS DataBase Reference)
NIST
Sodium oxalate(62-76-0)
EPA
Sodium oxalate (62-76-0)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 Xn
위험 카페고리 넘버 21/22-34
안전지침서 24/25-45-36/37/39-26-36
유엔번호(UN No.) 3282
WGK 독일 1
RTECS 번호 KI1750000
F 고인화성물질 21
TSCA No
위험 등급 6.1(b)
포장분류 III
HS 번호 29171100
독성 LD50 orally in Rabbit: 375 mg/kg
기존화학 물질 KE-31561
그림문자(GHS):
신호 어: Warning
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H302 삼키면 유해함 급성 독성 물질 - 경구 구분 4 경고 P264, P270, P301+P312, P330, P501
H312 피부와 접촉하면 유해함 급성 독성 물질 - 경피 구분 4 경고 P280,P302+P352, P312, P322, P363,P501
예방조치문구:
P264 취급 후에는 손을 철저히 씻으시오.
P264 취급 후에는 손을 철저히 씻으시오.
P270 이 제품을 사용할 때에는 먹거나, 마시거나 흡연하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P321 (…) 처치를 하시오.
NFPA 704
1
2 0

옥살산나트륨 MSDS


Disodium oxalate

옥살산나트륨 C화학적 특성, 용도, 생산

개요

Sodium oxalate, or disodium oxalate, is the sodium salt of oxalic acid with the molecular formula Na2C2O4. It is usually a white, crystalline, odorless powder, that decomposes at 250–270 °C.
Disodium oxalate can act as a reducing agent, and it may be used as a primary standard for standardizing potassium permanganate (KMnO4) solutions.
The mineral form of sodium oxalate is natroxalate. It is only very rarely found and restricted to extremely sodic conditions of ultraalkaline pegmatites.

화학적 성질

White, crystalline powder. Soluble in water; insolu- ble in alcohol.

물리적 성질

White crystalline powder; density 2.34 g/cm3; decomposes around 250° C; sparingly soluble in water, 3.7 g/100 mL at room temperature; moderately soluble in boiling water, about 6.25 g/100 mL; the aqueous solution is practically neutral; insoluble in alcohol.

용도

Sodium Oxalate is obtained in such high purity and is so stable that it is used as a titrimetric standard.

용도

Sodium Oxalate illustrate the elimination of broadening due to 2nd-?order quadrupolar effects leading to a 30-?fold increase in resolution compared to magic-?angle spinningin NMR of polycrystalline.

용도

Finishing textiles, tanning and finishing leather; for standardizing potassium permanganate solution.

정의

ChEBI: An organic sodium salt consisting of sodium and oxalate ions in a 2:1 ratio.

제조 방법

Sodium oxalate can be prepared through the neutralization of oxalic acid with sodium hydroxide (NaOH) in a 1:2 acid-to-base molar ratio. Half-neutralization can be accomplished with NaOH in a 1:1 ratio which produces NaHC2O4, monobasic sodium oxalate or sodium hydrogenoxalate.

화학 반응

Sodium oxalate is used to standardize potassium permanganate solutions. It is desirable that the temperature of the titration mixture is greater than 60 °C to ensure that all the permanganate added reacts quickly. The kinetics of the reaction is complex, and the manganate (II) ions formed catalyze the further reaction between permanganate and oxalic acid (formed in situ by the addition of excess sulfuric acid). The final equation is as follows:
5Na2C2O4 + 2KMnO4 + 8H2SO4 → K2SO4 + 2MnSO4 + 10CO2 + 8H2O.

일반 설명

Odorless white solid. Sinks and mixes slowly with water.

반응 프로필

Disodium oxalate gives basic aqueous solutions. Neutralizes acids in exothermic reactions. Can serve as a reducing agent in reactions that generate carbon dioxide.

위험도

Toxic by ingestion.

건강위험

Inhalation or ingestion causes pain in throat, esophagus, and stomach; mucous membranes turn white; other symptoms include vomiting, severe purging, weak pulse, cardiovascular collapse, neuromuscular symptoms, and kidney damage. Contact with eyes or skin causes irritation.

Toxicology

Like several other oxalates, sodium oxalate is toxic to humans. It can cause burning pain in the mouth, throat and stomach, bloody vomiting, headache, muscle cramps, cramps and convulsions, drop in blood pressure, heart failure, shock, coma, and possible death. Mean lethal dose by ingestion of oxalates is 10-15 grams (per MSDS).
Sodium oxalate, like citrates, can also be used to remove calcium ions (Ca2+) from blood plasma. It also prevents blood from clotting. Note that by removing calcium ions from the blood, sodium oxalate can impair brain function, and deposit calcium oxalate in the kidneys.

Purification Methods

It crystallises from hot water (16mL/g) by cooling to 0o. Before use as a volumetric standard, analytical grade quality sodium oxalate should be dried for 2hours at 120o and allowed to cool in a desiccator. [Beilstein 2 IV 1819.]

옥살산나트륨 준비 용품 및 원자재

원자재

준비 용품


옥살산나트륨 공급 업체

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