CAS 7440-25-7 MFCD00011252-Tantalum 钽 -LabNovo

Tantalum 钽

CAS 7440-25-7 MFCD00011252

化学结构图

SMILES: [Ta]

化学属性

Mol. Formula	Ta
Mol. Weight	180.95
Density	16.69 g/cm3(lit.)
Boiling Point	5425 °C at 760 mmHg
Melting Point	2996 °C
TSCA	Yes
Autoignition Point	572 °F
Vapor Pressure	<;0.01 mmHg ( 537.2 °C)
Stability	对湿度敏感
Appearance	wire

别名和识别编码

Chemical Name	Tantalum
MDL Number	MFCD00011252
PubChem Substance ID	23956
CAS Number	7440-25-7
EC Number	231-135-5
Synonym	Tantalum rod, 12.7mm (0.5in) diameter * 1cm long, hard, 99.95% (metals basis) {LY} Tantalum rod, 12.7mm (0.5in) diameter * 1cm long, hard, 99.95% (metals basis) {} {LY} Tantalum rod, 12.7mm (0.5in) diameter * 1cm long, hard, 99.95% (metals basis) {} {} {LY} Tantalum rod, 12.7mm (0.5in) diameter * 1cm long, hard, 99.95% (metals basis) {} {} {} {LY} Tantalum rod, 12.7mm (0.5in) diameter * 1cm long, hard, 99.95% (metals basis) {} {} {} {} {} {} {} {} {LY} Tantalum rod, 12.7mm (0.5in) diameter * 1cm long, hard, 99.95% (metals basis) {} {} {} {} {} {LY} Tantalum rod, 12.7mm (0.5in) diameter * 1cm long, hard, 99.95% (metals basis) {} {} {} {} {} {} {LY} Tantalum rod, 12.7mm (0.5in) diameter * 1cm long, hard, 99.95% (metals basis) {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Tantalum rod, 12.7mm (0.5in) diameter * 1cm long, hard, 99.95% (metals basis) {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} Tantalum rod, 12.7mm (0.5in) diameter * 1cm long, hard, 99.95% (metal
Chemical Name Translation	钽
Merck Number	13,9143
Wiswesser Line Notation	TA
LabNetwork Molecule ID	LN02124332
InChI	InChI=1S/Ta
Canonical SMILES	[Ta]

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产品应用

钽最早用于制灯丝，后被钨丝代替；化学工业中钽用于制造耐酸设备；由于钽不被人体排斥，可用作修复骨折所需的金属板、螺钉等，还用于制造外科刀具和人造纤维的拉线模等。

安全信息

WGK Germanynwg

Personal Protective Equipment Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter

RTECSWW5505000

Safety Statements

S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后，立即用大量水冲洗并征求医生意见；
S36/37/39 Wear suitable protective clothing, gloves and eye/face protection 穿戴适当的防护服、手套和眼睛/面保护；
S36 Wear suitable protective clothing 穿戴适当的防护服；
S16 Keep away from sources of ignition - No smoking 远离火源，禁止吸烟；
S33 Take precautionary measures against static discharges 对静电采取预防措施；
S60 This material and its container must be disposed of as hazardous waste 该物质及其容器必须作为危险废物处置；
S37 Wear suitable gloves 戴适当手套；

UN Number 3089 UN 3089 4.1/PG 2 UN3089 UN3264 UN1790

Risk Statements

R11 Highly flammable 非常易燃
R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性
R20/21/22 Harmful by inhalation, in contact with skin and if swallowed 吸入、皮肤接触和不慎吞咽有害

GHS Symbol

Hazard Codes F;Xi F,Xi,Xn F,Xi

Hazard statements

H228 Flammable solid 易燃固体
H315 Causes skin irritation 会刺激皮肤
H319 Causes serious eye irritation 严重刺激眼睛
H335 May cause respiratory irritation 可能导致呼吸道刺激

Precautionary statements

P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. 远离热源/火花/明火/热的表面。——禁止吸烟。
P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
P305+P351+P338

Signal word Warning

Packing GroupII

Storage condition RT, stored under nitrogen {LY} RT, stored under nitrogen Store at room temperature, keep dry and cool {} {LY} RT, stored under nitrogen {} {} {LY} RT, stored under nitrogen {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {} {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {} {} {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {} {} {} {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {} {} {} {} {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {} {} {} {} {} {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {LY} RT, stored under nitrogen {} {} {} {} {} {} {} {} {} {} {} {} {} {} {

Hazard Class4.1

TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Implant
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 3760 mg/kg
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Tumorigenic - tumors at site of application
REFERENCE :
   CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut
   Sts., Philadelphia, PA 19106)  V.1-    1941-  Volume(issue)/page/year:
   16,439,1956

其他信息

蒸气压:<;0.01 mm Hg ( 537.2 °C)
职业标准:TWA 5 毫克/立方米; STEL 10 毫克/立方米
急性毒性:气管-大鼠 TDL0: 250 毫克/公斤
黑灰色金属，有延展性。钽的化学性质特别稳定，常温下除氢氟酸外不受其它无机酸碱的侵蚀；高温下能溶于浓硫酸、浓磷酸和强碱溶液中；金属钽在氧气流中强烈灼烧可得五氧化二钽；常温下能与氟反应；高温下能与氯、硫、氮、碳等单质直接化合。
下游产品:氟碳铈矿 --> 甲基丙烯腈 --> 五氟化钽 --> 氧化钽
储运特性:库房低温通风干燥; 与强氧化剂,及三氟化溴、氟分开存放
毒性分级:中毒
外观性质:黑灰色金属，有延展性。钽的化学性质特别稳定，常温下除氢氟酸外不受其它无机酸碱的侵蚀；高温下能溶于浓硫酸、浓磷酸和强碱溶液中；金属钽在氧气流中强烈灼烧可得五氧化二钽；常温下能与氟反应；高温下能与氯、硫、氮、碳等单质直接化合。　　熔点：2996℃沸点：5425℃密度：16.6
可燃性危险特性:在空气中可自燃; 火场释放有毒含钽烟雾
灭火剂:水; 二氧化碳; 泡沫; 沙土
Sigma Aldrich:7440-25-7(sigmaaldrich)
类别:有毒物质
Alfa Aesar:钽柱体,6.35mm(0.25in)diax6.35mm(0.25in)length,99.95%(metalsbasis) Tantalum slug, 6.35mm (0.25in) dia x 6.35mm (0.25in) length, 99.95% (metals basis)(7440-25-7)
用途一:用于钽电容器及化工设备中代替铂，也用于笔尖及钽的碳化物等
用途二:钽最早用于制灯丝，后被钨丝代替；化学工业中钽用于制造耐酸设备；由于钽不被人体排斥，可用作修复骨折所需的金属板、螺钉等，还用于制造外科刀具和人造纤维的拉线模等。
爆炸物危险特性:与空气混合可爆
MOL 文件:7440-25-7.mol
用途三:钽最早用于制灯丝，后被钨丝代替；化学工业中钽用于制造耐酸设备；由于钽不被人体排斥，可用作修复骨折所需的金属板、螺钉等，还用于制造外科刀具和人造纤维的拉线模等。用于ICP-AES、AAS、AFS、ICP-MS、离子色谱等。滴定分析用标准溶液。